Best AI Tools for Academic Research in 2026

Generative Engine Optimization platform — get clients cited by AI search

💰 Credit-based — agencies consume credits per audit, content generation, and citation-tracking cycle.

Google's AI research tool that synthesizes your sources

💰 Free for all users. NotebookLM Plus $20/mo for enterprise features

AI search engine with cited, real-time answers

💰 Free tier. Pro $20/mo with unlimited Pro searches

AI agent that finds the exact affiliate signup page for any SaaS product and flags closed or paused programs

💰 One free search is offered with no signup, and signing up grants 10 free searches with no credit card. The site publishes no price sheet — /pricing returns 404 and no tier table appears on the homepage — so no paid figures are listed here.

AI for predicting protein structures

💰 Free for academic research. AlphaFold Database publicly available

Generates Anki-compatible flashcards from PDFs, slides, Word, EPUB, images, handwritten notes or YouTube — with image occlusion for diagrams, 50+ languages, and one-click export to Anki desktop.

💰 Free to start with no credit card required, stated on the homepage. A pricing page is linked from the site navigation and footer but is client-side rendered — a direct server-side fetch of /pricing returns a 404 handler — so no tier figures are exposed and none are recorded here rather than guessing. An affiliate programme is advertised.

US legal research and drafting with per-jurisdiction and per-practice-area scoping, four-layer citation verification, and a separate mode for judges and arbitrators.

💰 Research + AI Case Agents is $879/month per firm admin and covers federal authority plus one selected state, with additional states as month-to-month add-ons. The Judges, Arbitrators & Mediators plan is also $879/month per neutral and includes all state and federal jurisdictions plus Case Adjudication mode. Both include 6,000,000 tokens/month, four-layer citation verification, DOCX export and 24/7 support. A separate Full Case-Law Database + Document AI tier is $39.99/month per user for unlimited reading of every state and federal opinion plus OCR/extraction tokens and 5 GB storage. A free trial gives three queries with no credit card.

Simulates audience reaction with networks of AI personas modeled on real people, in 24 hours instead of months

💰 No published price sheet as of July 2026 — engagement runs through a sales conversation and a booked meeting, with no self-serve tier advertised.

Open-source active-learning screening for systematic reviews, with a simulation mode for validation

💰 Free and open source, installed locally. No paid tier is offered; the project is coordinated at Utrecht University and accepts donations. Documentation, a live demo and community events are provided free.

AI research assistant for papers, PDFs, and documents.

R&D platform for biotech with AI insights

💰 Custom enterprise pricing for research organizations

Personal knowledge graph from your transcripts and docs, queryable by AI agents

💰 Free is $0 forever with no credit card and no expiry, and includes up to 40 documents, ingestion of voice notes, files, web pages and YouTube, multiple brains under one account (personal, marketing, per client), tool connections and the ability to see how the brain reasons. Pro is $49/month billed annually, listed against $58/month monthly, saving 20%, and adds 60 new documents every month, all integrations including Zapier, Make, n8n, Claude Cowork, OpenClaw and the API, a biweekly knowledge-graph health check report, AI-surfaced content ideas from real conversations, blind-spot alerts, upsell and referral opportunity spotting across clients, weekly office hours and a weekly mastermind. Max is $199 today against a $600 session price, saving $400, and includes a 4-hour one-to-one build session with the founder plus the first three months of Pro at a higher 100 documents/month cap, reverting to $49/month afterwards and cancellable at any time. The session carries a guarantee of a free 2-hour follow-up or a full refund.

Peer learning community with AI homework help

💰 Free tier with ads. Plus $24/yr, Max $48/yr

Interactive STEM learning through problem-solving

💰 Free tier. Premium $10.99/mo (annual), Family $24.99/mo

AI-powered education platform for essays, math, coding & studying

💰 Limited free access. Premium $14.99/mo or $99.99/year

Legal research with AI assistant CoCounsel

💰 CoCounsel starting at $500/user/mo

Chat with any PDF — ask questions, get summaries, and extract key info in seconds

💰 Free (2 PDFs/day, 120 pages, 50 msgs/PDF). Plus $19.99/mo (unlimited PDFs, 2,000 pages, GPT-4o).

AI-powered homework help and study platform.

Generates personalised programming courses from the concepts you struggle with while coding alongside AI

💰 Free is £0 and includes 3 courses per month, suggested courses, comments and the AI Explain feature. Pro is £15/month for developers shipping daily and includes everything in Free plus 12 courses per month and priority support. Ultra is £40/month and includes everything in Pro plus unlimited courses. Pricing is quoted in pounds sterling on the vendor's own pricing page. Courses are created on demand — the vendor states that when your coding assistant notices you struggling with a programming concept, Chestnut proactively creates a course on that topic.

Deterministic legal citation verification with a published false-verify rate

💰 Free: 3 verifications per month, no card. Solo $29/mo for 30 docs, including a $100 fabrication warranty and a $10,000 sanctions guarantee. Professional $79/mo for 150 docs with a priority queue and a $200 fabrication warranty. An entry paid tier starts at $12/mo. Annual billing saves 20%.

Agent-native notebook that finds data, writes cells, provisions GPUs and runs experiment branches from a prompt

💰 Usage-based with four published tiers plus Enterprise. Free is $0/mo: the Auto model for fast low-cost everyday work on a CPU sandbox with 8 vCPU and 8 GB RAM. Plus is $30/mo, adding open models (DeepSeek V4 Pro, Kimi K3, Qwen3.8 Max), entry GPUs (T4, L4, A10) up to 24 GB VRAM, up to 32 GB sandbox RAM, a monthly usage allowance and optional pay-as-you-go beyond it. Pro is $90/mo for every model including Claude Sonnet and Opus and GPT, mid-tier GPUs (L40S, A100) up to 80 GB VRAM, up to 64 GB sandbox RAM and at least 4× the Plus allowance. Max is $200/mo with all models and GPUs unthrottled, H100 and H200 up to 141 GB VRAM, up to 128 GB sandbox RAM, at least 12× the Plus allowance and priority capacity. Enterprise covers higher limits, dedicated capacity and SSO.

Socratic coding tutor that teaches your own codebase step by step and refuses to write the code for you

💰 Free tier: an open-source skill on GitHub where your code never leaves your machine, plus lessons built from any public repo URL. Pro from $24/month adds a managed tutor; in repo mode it runs against your own checkout on 127.0.0.1 with edits landing in your real branch. Team pricing via Talk to sales. Secrets and gitignored files are never read on either tier. Currently in beta.

Agentic compute platform giving each agent a persistent cloud computer, projects, memory, skills and subagents

💰 A subscription unlocks the platform and usage is metered separately in USD with included credits applied first; monthly and yearly billing are both offered. Sandbox is $0/month with a $1 one-time usage credit, a default agent and files, one constrained cloud computer, and run estimates and usage history. Builder is $24/month with a $5 monthly usage credit, custom agents and Projects, Imagine and Metronome workflows, evaluations, guardrails and fine-tuning, cloud computers and developer resources, plus tags, schedules and API access. Team is $79/month with a $15 pooled monthly credit, three builder seats, unlimited operators and viewers, shared agents/projects/computers, squads, roles and pooled billing, bring-your-own inference endpoint, and additional builder seats at $15/month. Business is $249/month with a $40 pooled credit, ten builder seats, audit logs and approval policies, SAML SSO and SCIM, service accounts and org analytics, priority support, and extra seats at $12/month. Enterprise is quoted separately.

Visual graph of connected research papers

💰 Free tier 5 graphs/mo. Premium $7/mo unlimited

AI search for scientific research papers

💰 Free tier. Premium $8.99/mo, Enterprise custom

Save, summarise and chat with web articles, PDFs and YouTube videos in one permanent library

💰 Free is $0/month with 3 AI summaries, 1 PDF, 1 web article, 1 YouTube video, 20 AI chat messages and 3 image generations per month. Plus is $9.99/month, or $7.99/month on annual billing which the site quotes as a 60% saving, with unlimited AI summaries, unlimited TLDRs, unlimited key takeaways, unlimited AI chat messages and 1,000 image generations per month. A Lifetime plan gives the same unlimited access for a one-time $199.99, discounted to $99.99. The product is operated by Basement Labs LLC.

The most-installed Obsidian AI plugin — cited vault search, projects, composer diffs, and any model you like

💰 Free tier is BYOK with no sign-up or license key, covering all free and open-source features, image support on vision models, a local data store for Vault QA, and Markdown-only context — but no AI agents or tool use, and community support only. Plus is $14.99/month, or $11.67/month billed annually at $139.99/year, adding a built-in copilot-plus-flash model, smarter multilingual vault search, a web-searching agent with long-term memory, YouTube and X ingestion, per-project context, 50+ file types including PDFs and EPUBs, and a private Discord. A Self-Host Supporter tier is $349.99 for lifetime self-host access plus two years of Plus.

Online courses from top universities and companies

💰 Audit free. Coursera Plus $59/mo, individual courses vary, degrees from $9,000

AI lesson generator with interactive student engagement

💰 Free for teachers. Premium plans for schools and districts

AI-native browser from Browser Company with contextual intelligence

💰 Free to download and use

AI-powered language learning with GPT-4 features

💰 $29.99/mo or $167.99/yr on top of Duolingo Super

AI research assistant for literature reviews

💰 Free tier. Plus $10/mo, Pro $42/mo for researchers

Highlight a confusing passage in a paper and get a plain-language explanation, with math and figure support on Pro

💰 Free is $0 per month, free for everyone forever, with unlimited highlight explanations, follow-up questions, Zotero library import and basic AI models. Pro is $16/month with a 7-day free trial, adding advanced AI models, Math Explain for formulas and figures, whole-paper summaries, saved highlights and explanations, and questions about the paper. Yearly billing saves 25%. Teams is quoted on request and adds team management, priority support and volume discounts. All plans bill through Stripe.

Universal AI second brain — captures web clips, PDFs, and notes into one searchable, AI-powered workspace

💰 Free (limited storage). Plus $10/mo, Pro $20/mo

AI tax research assistant grounded in IRC Title 26, Treasury Regs and IRS rulings with a citation on every line

💰 Pro is $99 per user per month with a full 7-day free trial that requires no credit card, and three sample questions can be tried instantly without an account. Pro includes audit-ready citations on every answer across IRC, Treasury Regulations, Revenue Procedures and Private Letter Rulings; internal, client and executive memo drafting with linked citations; federal and state knowledge bases updated weekly; unlimited chats and message history; the Safe encrypted client document vault for 1099s, K-1s, W-2s and full filings; email and cloud-drive intake from Drive, Dropbox, OneDrive and Box; firm-wide sharing of chats, files and projects; and priority support. Enterprise is custom-priced for firms of 10 or more. Cancel anytime.

Agentic AI browser that automates complex web tasks and deep research

💰 Free tier available. Premium plans with expanded capabilities

AI grading for handwritten K-12 maths, with misconception tracking and class analytics

💰 Free is $0 forever with no credit card and no expiry: up to 50 worksheets/month, handwriting recognition with step-level feedback, capture from phone, document camera or scanner, a live class dashboard, and FERPA/COPPA/SOC 2 Type II compliance. Pro is $16.67/month billed at $200/year (saving 33%, with a 14-day trial and a fall back to Free on cancellation) and raises the limit to 1,000 worksheets/month, adding step-level explanations, custom feedback styles, class and student analytics, misconception tracking, custom rubrics and grading scales, and email support with a 24-hour response. Institution is custom-priced on an annual invoiced contract for schools, districts and charter networks, adding unlimited worksheets, everything in Pro for every teacher, school and district admin dashboards, standards alignment across CCSS, TEKS, NGSS and 30+ state frameworks, Google Classroom and Canvas integration, SSO/SAML and Clever/ClassLink rostering, equity and standards reporting, a dedicated success manager and a custom DPA. Typical institutional setup is stated as under 48 hours.

AI forecasting engine with a public Metaculus and real-money track record, priced per question

💰 Free tier starts with $20 in credit, no card, 10 concurrent researchers, all operations and API access. Analyst Starter is $20/month with 20 concurrent researchers and 15% off usage rates; Research is $99/month (half off the first month for new subscribers) with 40 researchers and 30% off usage; Expert is $500/month with 80 researchers and 30% off usage. Usage is charged per question on top: roughly $2–$5 for a high-effort forecast, $0.25–$3 for a low-effort one, $0.30–$4 per multi-agent row and $0.03–$0.30 per agent-map row. Top-up credit can be bought in any amount, is good for a year and does not reset monthly like the plan allowance. Enterprise and volume pricing on request.

Bioinformatics software for genomics

💰 Prime $95/mo, Biologics $175/mo. Annual and academic discounts available

AI search and agent platform with autonomous research and content creation

💰 Free tier (200 credits/day). Plus $19.99/mo, Pro $24.99/mo

AI-moderated user interviews that run autonomously and return tagged, quantified insights

💰 Signup is free to start. There is no /pricing page on the site (it returns 404), so no tier pricing is published — larger use is routed through the team rather than a published rate card.

Web and PDF highlighter with a social discovery layer, AI chat over your library and auto-sync to Notion.

💰 Free $0 with unlimited public highlights and no credit card required. Pro $12.50/month, or $150/year billed annually against a $180 monthly-equivalent, adding private highlights, chat models and daily auto-sync/export to Notion. Unlimited $30/month, or $360/year billed annually against $432, for unlimited private highlights. Yearly billing gives two months free.

Open-source autonomous research agent — plans subtopics, gathers sources, writes a cited report

💰 Free and open source under the MIT licence. The vendor states plainly that there is no SaaS subscription, no API gateway and no rate limit imposed by the project — you self-host the agent and pay only your underlying LLM and search-API providers directly. Per-query cost therefore depends on your choices: the LLM provider (GPT-class, Claude Sonnet, Gemini, DeepSeek or a local model), the retriever (Tavily, Bing, Google CSE, or free options such as DuckDuckGo and SearXNG), and the configured number of subtopics and iterations, with defaults targeting 10 to 30 sources. The project's own indicative ballpark for a single deep-research run on default OpenAI plus Tavily settings is a few cents to a few dollars of provider spend. There is no first-party hosted SaaS; managed VPC deployments, private-corpus retrievers and SLAs are handled by direct arrangement with the maintainer.

AI writing assistant for students

💰 Education pricing for schools and universities

AI knowledge base — generate and explore wiki-style explanations on any topic

💰 Free tier available. Premium plans for unlimited generation and storage.

AI-powered course creation platform for creators and coaches

💰 Basic $19/mo, Pro $49/mo, Business $119/mo. No transaction fees.

Chat with PDFs and documents — get cited answers from your files

💰 Free (60 pages/mo), Student $1.99/mo (200 pages), Expert $9.99/mo (unlimited).

Turns any text into a knowledge graph to reveal topical clusters and, more importantly, the structural gaps between them — with an MCP server for GraphRAG.

💰 A pricing page exists and plan detail renders client-side; no figures were reachable at the time of verification. Confirm current tiers on the vendor's pricing page.

Enterprise AI knowledge foundation for regulated industries

💰 No published pricing. Demo-gated enterprise contracts scoped against data volume, integrations and governance requirements. No self-serve tier for individual researchers.

Premium ad-free search engine with AI features

💰 Starter $5/mo (300 searches), Professional $10/mo (unlimited), Family $14/mo

AI tutor from Khan Academy

💰 $9/mo for students, $4/mo for teachers (part of Khan Academy membership)

AI tutor by Khan Academy using the Socratic method.

A local-first, MIT-licensed desktop thinking tool for macOS and Windows that connects your reading, notes and conversations into finished work, running on your own API keys or local models.

💰 The desktop app is free and open source under MIT for macOS and Windows, using your own OpenAI or Anthropic key, a Claude Code or Codex subscription, or local models via Ollama. A Pro Cloud tier adds cross-device sync, built-in frontier models with no API keys and an included AI allowance with optional top-ups, and starts with a 7-day free trial requiring no credit card. The Pro Cloud plan table is rendered client-side and no monthly figure is exposed in the served HTML, so no price is recorded here.

AI research assistant that highlights, annotates, and synthesizes web content and PDFs

💰 Free tier with limited AI features. Premium from $8.33/mo for unlimited AI research.

Production web search API for AI — sub-second cited search, page fetch and async deep research

💰 Pay as you go and priced per request rather than per seat, with 4,000 queries free to start. Fetch, for URL content extraction, is $0.001 to $0.005 per request at under two seconds latency, synchronous. Search, for web search tool calls from AI agents, is $0.005 to $0.006 per request at one to three seconds latency, synchronous, and comes in Fast, Standard and Deep variants. Research, for asynchronous deep research, is $0.25 to $2.50 per request with latency from one to ten minutes. SOC 2 Type II is included on all plans; zero data retention is available on the Enterprise plan, which also covers in-your-own-cloud deployment. There is no monthly platform fee published — the request price is the price.

Source-based AI writing partner — 100M+ source citation tool, AI detector, plagiarism check

💰 Two published tiers with no credit card required to start, plus a separate contact-priced team and enterprise track. Free is $0 per month and includes limited daily AI commands and AI output, unlimited use of the legitimate source finder, unlimited citation tool and formatting, the AI companion and the AI detector. The paid plan starts from $7.90 per month if billed annually — the vendor markets this as 60% off — and includes the unlimited AI outline and drafting tool, unlimited AI output and AI commands, unlimited source finder, unlimited citation tool and formatting, the AI companion, the text humanizer, the plagiarism checker and unlimited built-in ChatGPT. A separate Team & Enterprise pricing page is offered for institutions.

Meta's open-source LLM for research and commercial use

💰 Free to download and use. Available on cloud providers at various inference costs

Turn YouTube, PDFs, and any content into AI-generated mind maps instantly

💰 Free tier available. Pro plans for advanced features

AI that converts handwritten and printed math to LaTeX.

💰 Free tier with 10 PDF pages/month and 10 images/month (doubled with .edu email). Pro $4.99/mo (1,000 pages/5,000 images). Organization $9.99/mo. Enterprise custom pricing.

AI math solver with step-by-step explanations

💰 Free answers. Premium $9.99/mo for step-by-step solutions

GPT-4 powered Chrome extension for email, summaries & research

💰 Free tier with 51 queries/day. Starter $14.25/mo, Pro $35.10/mo, Team $54/mo

AI study assistant turning lectures into notes, flashcards, quizzes, and an AI tutor

💰 Free study sessions available. Premium plans for unlimited access

AI Chrome extension with GPT-4 for writing, translation & research

💰 Free tier with daily limits. Pro $9.90/mo, Pro+ $19.90/mo, Unlimited $24.90/mo

Multi-model AI sidebar and Gmail extension — one subscription across several model families

💰 Three published tiers with a 7-day free trial on each and 15% off on yearly billing; the vendor describes the model as usage-based with no upfront commitment. Pro is $9 per month for 1,500 queries per month on a single individual seat with full feature access. Unlimited is $19 per month for unlimited queries across 3 team seats. Team is $99 per month for unlimited queries across 10 team seats. All three tiers carry the same feature set — the AI email assistant, Gmail extension, sidebar copilot, LinkedIn tools, summarisation, writing toolkit and coding tools — so the differences are query volume and seat count rather than capability. The vendor publishes no permanently free tier.

Open NotebookLM alternative on your own keys and storage — cited answers, podcasts, flashcards, and an MCP-connected library

💰 Free tier: save sources free with no card. Monthly $5/month, which covers AI and service usage — source fetching and storage past the included 5 GB — with pay-as-you-go beyond that capped by a budget you set (defaults to $0). Yearly $50/year, same deal with two months free, billed once as $50 of AI credit for the year. Bring your own AI keys and your own S3-compatible storage to reduce metered usage. Everything is included on either plan; cancel anytime and your data leaves with you.

Free open-source read-later app with AI summaries and Obsidian integration

💰 Completely free. Open-source. Self-host or use the hosted version at no cost.

Writes and illustrates original children's stories from a one-line idea

💰 The monthly plan is $9/month. The annual plan is billed yearly at a 33% discount, working out to $6/month. Both unlock the paid-only genre presets — western, Seuss, epic, poem and mystery — and preview access to upcoming features. A Commercial License tier is $19, quoted on the page as $29.00/month or $19.00/month with an annual subscription. A separate Commercial plan at $50/month adds dedicated support and infrastructure for company use. The company donates 3% of subscription revenue to removing CO2 from the atmosphere.

Open-source, self-hosted AI research notebook with podcast generation and full model control

💰 Free and open source, self-hosted. No paid tier or hosted plan is advertised; model costs are whatever you incur with the providers you configure, and local models incur none. Support runs through GitHub and Discord.

AI research assistant that summarises PDFs, video, podcasts and spreadsheets in one writing workspace

💰 Free is $0 with limited monthly chats and a basic PDF viewer. Lite is $7/month ($84/year) and adds agentic AI. Go is $18/month ($216/year) with roughly 3x the chat and research capacity and all AI models. Pro is $45/month ($540/year) with roughly 10x capacity for daily research. Yearly billing is advertised at 50% off. Separate Business plans are available.

AI academic writing assistant for researchers — grammar, citations, journal readiness, and manuscript polish

💰 Free (200 AI suggestions/mo). Prime $19/mo or $99/yr (unlimited). Teams and institution pricing available.

Spreadsheet-shaped agent platform for parallel research and data enrichment

💰 Individual is $200/month billed annually and includes 20,000 credits total, top-ups at the standard rate, and a single seat with no team features. Business starts at $1,000/month billed annually, includes at least 100,000 credits, top-ups at a discounted rate, database and CRM integrations, and unlimited team seats. Enterprise is custom-priced and adds custom credit limits, a custom seat count, full role-based access controls, domain auto-verification, SAML/OIDC SSO, custom data sources, advanced team analytics, a dedicated account team, in-depth onboarding and optional tenant isolation. Annual billing saves 20% against monthly. Credits are consumed per cell run and vary by task complexity; the vendor publishes an estimation guide because of that.

Scan and solve math problems with explanations

💰 Free tier. Plus $9.99/mo with detailed explanations

AI research workspace on an infinite canvas for literature review, knowledge maps and cross-source analysis

💰 Free is $0/month with 0 monthly credits but 50 credits refreshed daily, limited access to advanced models, limited file uploads, AI fetch-and-save of external sources, and mind map, document and slide export. Casual is $14/month billed yearly at $168/year (13% off the $16 monthly rate) with 1,100 credits a month plus the daily 50, access to all advanced models, top-up credits that never expire and unlimited file uploads. Plus is $24/month billed yearly at $288/year (20% off $30) with 2,500 credits a month, 25% off credit top-ups and priority AI access at peak times. Pro is $42/month billed yearly at $504/year (30% off $60) with 6,000 credits a month, 40% off top-ups, top-priority peak access and early access to advanced features; larger monthly credit blocks are listed at $70 for 10,000 and $140 for 20,000.

AI workspace for documents, presentations, and research

💰 Free tier available. Pro $9.99/mo, Unlimited $16.99/mo

AI paraphrasing and writing assistant

💰 Free tier (125 words). Premium $8.33/mo (annual)

AI-powered flashcards and study tools

💰 Free tier. Plus $35.99/yr, Teacher $34.99/yr

AI study platform — flashcards, practice tests, and Socratic tutoring

💰 Free tier. Plus $7.99/mo, Teacher $4/mo

AI reading app with smart highlights, summaries, and flashcard generation

💰 Free 60-day trial. Full plan $7.99/mo or $7.99/mo as part of Readwise bundle

Research discovery with smart recommendations

💰 Free for researchers

Networked thinking tool with bidirectional links

💰 Pro $15/mo, Believer $500 5-year plan

AI research assistant for finding and analyzing scientific literature

💰 Free tier with limited searches. Pro $9.99/mo, Academic $19.99/mo

AI article summarizer for research papers

💰 Free tier. Premium $4.99/mo

AI copilot for understanding research papers

💰 Free tier. Premium $12/mo, Teams $20/user/mo

Domain-tuned AI summariser for scientific papers, with structured output, a ChatGPT connector and student pricing.

💰 A free trial covers the first 7 days. A student code gives the first month at $0. The Pro plan is $4/month when billed annually at $48/year, which the site notes saves 42% against monthly billing. Monthly pricing is offered but the figure is not published in the page text.

Smart citations showing support or contradiction

💰 Free tier. Individual $20/mo, Team $30/user/mo, Enterprise custom

Sweeps public sources and surfaces the few source-linked changes that actually matter, privately tuned to you

💰 Four tiers. Shared Briefs are $0 forever: follow public ScoutFox-curated Briefs indefinitely, up to five material changes per edition, public web archive plus email delivery, source-linked curator-approved selections, but no private profile or Interest runtime. Solo Pro is $25 per month for one operator — 5 active Interests, daily Brief editions, delivery to email, Telegram and in-app, standard plus Web/News Scouts, significance ranking that learns your taste, and saved signals with source-linked follow-ups. Max is $99 per month for 25 active Interests, hourly editions, real-time alerts as quality permits, priority routing on all channels, deeper investigation across more verified sources, a higher compute budget on hard queries, advanced source-list, event and portfolio Scouts, LinkedIn profile monitoring and a priority queue. Enterprise is custom-priced for VC and newsroom teams and adds a private Community Scout for authorised Discord and Slack sources, team seats and shared briefs, dedicated brief design, and compliance, audit and retention controls.

Open-source AI that captures and remembers your screen activity.

OpenAI's AI search engine with real-time web results and citations

💰 Available in ChatGPT Free (limited), Plus $20/mo, Pro $200/mo

Free AI research tool with paper discovery

💰 Free for all users

AI sidebar for your browser — chat, summarize, translate, and generate right on any webpage

💰 Free (limited queries/day). Pro $4.99/mo or $39.99/yr (unlimited GPT-4o, Claude 3.5 Sonnet, Gemini 1.5 Pro).

Infinite-canvas desktop app for running many AI sessions side by side across providers

💰 Free is $0 with 1 device activation, 3 desktop canvases, 1 connector, $2 of one-time included usage value and bring-your-own-key chat. Starter is $9/month ($7.50/month billed annually at $90, 17% off) with 2 devices, unlimited canvases, 5 connectors and $4/month of included usage. Pro is $49/month ($40.83/month billed annually at $490) with 3 devices, 30 connectors, all AI models, custom providers and $10/month of included usage. Advanced is $99/month ($82.50/month billed annually at $990) with 5 devices, unlimited connectors, image BYOK and $50/month of included usage. Every tier supports bringing your own subscription or keys, and all tiers include the full canvas workspace, unlimited branches and nodes, PDF, web and YouTube sources, and local-first storage.

AI writing, research & plagiarism checker for students & professionals

💰 Free tier (3 entries/day). Essentials $10/mo, Productive $29/mo

AI homework help with visual search

💰 Free for all users

Paste an essay and get credible academic sources with factual summaries, credibility checks and citation export

💰 Ultra is listed at $19/month, discounted to $11/month during the summer sale, with a smarter AI model, 30 deep searches per month and 100 source credibility checks per month. Max is listed at $39/month, discounted to $23/month, with the most advanced AI models, 1,000 deep searches per month and 1,000 source credibility checks per month. Yearly billing saves 60% and is billed annually. Both tiers include factual summaries per source, saving sources to a library, citation export, chat with sources, and a priority-support ad-free experience. Payment is secured through Stripe.

Local-first research paper reader with three specialised AI agents and bring-your-own API keys

💰 The app is a free download and runs models through your own provider API keys, so model usage is paid directly to the provider rather than to SpatialRead. Local model use via Ollama is unlimited and free. Documents are stored locally on your device with no cloud storage. No subscription tiers are published on the site.

Meeting-bot transcription that produces structured notes with owned action items, not raw transcripts

💰 Free $0 forever: 5 minutes per note, 3 basic styles, basic editing, audio/video/PDF/YouTube input. Pro adds unlimited length, all styles plus custom templates, revision history, more input types, team sharing and advanced organisation, with a 7-day free trial, a 7-day money-back guarantee and weekly, monthly and annual billing options — the exact Pro figure renders client-side and is not readable from the served page, so none is quoted here. Team and Enterprise plans are listed separately.

Turns real family situations into personalised illustrated stories for kids

💰 Unlimited Yearly is $49 a year, down from $69 — advertised as Save 20% and pitched as the best-value plan. Unlimited Monthly is $14/month, down from $19. A one-time 10-pack of Stories is $9 total and creates 10 stories and poems with no subscription. All three include beautiful illustrations, the ability to remake any story, save and share, and work on every phone and tablet; the subscriptions cancel any time. There is a free tier to start — the site's primary CTA is Create a Story for Free.

AI business intelligence for universities — ask questions across SIS, LMS and CRM data in plain language

💰 Sold through a get-in-touch conversation; the site publishes no price sheet, so no figures are recorded here rather than guessed.

Podcast summariser that writes personalised, goal-tailored takeaways and notes rather than generic episode abstracts.

💰 A free entry point is offered. A Team plan is listed as coming soon at $49/month against a $99/month list price. Individual tier figures are not published in the page text, so no monthly price is recorded for them here.

CLI and Chrome Side Panel that extracts clean text from pages, PDFs, YouTube, and podcasts, then summarizes with any model

💰 Free and open source under the MIT license, installed with npm i -g @steipete/summarize. You supply your own model — local models via Ollama or a local CLI provider cost nothing; hosted providers bill you directly.

Open-source NotebookLM alternative that researches the live web through connectors, an API and MCP

💰 Free tier is self-hosting: run the full platform — connectors, agents, automations and the MCP server — on your own infrastructure at $0, with unlimited scraping and crawling that you bill yourself, bring-your-own-keys for any model provider, and community support on Discord. The hosted option is pay-as-you-go with no subscription: your first $5 of credit is free, then you pay for what you use.

Open-source synthetic patient data generator

💰 Free and open-source. Apache 2.0 license

AI language tutor with real-time pronunciation feedback and adaptive conversation practice in 25 languages

💰 Free Trial is $0 for 7 days with access to all premium features, AI conversation practice, pronunciation feedback and progress tracking, and requires no credit card. Basic is $9.99/month, or $7.99/month on annual billing, with AI tutoring sessions, basic conversation practice, pronunciation feedback, progress tracking, mobile app access and a single language. Premium is $19.99/month, or $15.99/month annually, adding unlimited AI tutoring, advanced conversation scenarios, detailed pronunciation analysis, personalised learning paths, up to 3 languages, offline mode and priority support. Professional is $39.99/month, or $31.99/month annually, adding unlimited languages, business and professional content, industry-specific vocabulary, advanced analytics, custom learning goals and 24/7 premium support. Annual billing saves 20%, a 30-day money-back guarantee applies to new subscriptions, and students with a valid .edu address can request 50% off any plan.

AI conversation tutor for 50+ languages with a 14-day Premium trial, plus business and education tracks

💰 The site promotes a 14-day free trial of Talkpal Premium and maintains a /pricing page, but the tier table renders client-side and returned no figures when fetched on 2026-07-30, so no prices are recorded here rather than guessed. Separate For Business and For Education plans are quoted through their own pages.

AI quiz generator and live classroom game platform, free-tier Kahoot rival

💰 Priced in pounds sterling. Free is £0 forever and includes 5 quizzes per month, 30 students per live game, 3 AI quiz generations per month, access to the full quiz library and the ability to save. Plus is £4 (the page also shows a £2 figure in the plan block). The comparison table on the same page benchmarks these against Kahoot Free (no AI quiz generation, 10 students per game) and Kahoot Pro at $6/month (no AI quiz generation, 50 students per game). A separate For Schools track handles institutional pricing.

AI-summarised RSS digests with per-Recipe custom prompts, translation and scheduled delivery

💰 The entry plan is $0.00 and includes 2 million tokens with unlimited RSS subscriptions and unlimited Recipe creation. Billing is metered on summarisation tokens rather than per seat; additional token allowances are available on the pricing page.

Token-level citation API that reads attention to show exactly which source tokens produced each part of an LLM answer

💰 $1 per 1M tokens, pay as you go, with 10M tokens free to start. One API call, no SDK to install. Works with any model — OpenAI, Anthropic, or your own.

Pulls transcripts from any public YouTube video with AI summaries and chat, exposed three ways — web app, REST API with timestamped JSON, and an MCP server for Claude and Cursor.

💰 Four tiers, all carrying the same features — AI summaries, chat with videos, API access and multiple download formats — and differing only in monthly credits. Free is $0/month with 15 credits/month and no credit card required. Starter is $9/month or $72/year. Pro is $19/month or $152/year with 3,000 credits/month. Business is $49/month or $392/year with 10,000 credits/month. Annual billing is four months free (pay for eight). Full refund within 7 days.

Transcription and translation for calls, meetings and video in 50+ languages with AI summaries, smart highlights and chat-with-transcript, offered pay-as-you-go by the hour as well as monthly.

💰 Pay-as-you-go is listed at $1.49/hour of transcription or translation (regular price $2.00), with purchased hours valid for one year. Premium is $14/month (regular $40) for 20 hours per month. A Business tier sits above it. Every tier includes 50+ languages, no file-length limit, all audio and video file types, AI summarisation, smart highlights and interactive AI chat, and each offers a free trial. The site was showing a 50% one-year discount at the time of verification.

Three frontier models answer blind, cross-examine each other, and you get the answer that survived

💰 Explorer free: 1 free session, full multi-model debate, 2 reasoning iterations, no card (3 free sessions without signup). Reasoner $11/mo: 150 credits, all models, 3 iterations, 32K context, 20 web searches/session, file and PDF upload, 90-day history. Architect $26/mo: 500 credits, 5 iterations, 65K context, unlimited search, priority queue. Collective $66/mo: 1,500 credits, 7 iterations, 130K context, 10 concurrent sessions. Annual saves 30–33%. Non-expiring credit packs: 50 for $7, 150 for $18, 500 for $55.

AI coach for sim racing and Rocket League with live voice coaching, telemetry and post-lap analysis

💰 Free to get started with separate Plans & Pricing pages per game (sim racing and Rocket League); the tier tables render client-side and returned no readable figures to a plain fetch, so no numbers are recorded here rather than guessed. A sale banner runs on the site and a For Business track is offered.

AI drug discovery and molecular design

💰 Custom enterprise pricing for pharma and biotech

Live browser LaTeX editor with AI assistance, in-browser Python and unlimited free collaborators

💰 Three tiers sold on AI credit allowance rather than seats. Free is $0 forever with unlimited projects, real-time collaboration for unlimited users, basic LaTeX compilation, PDF export, a basic AI writing assistant with limited AI usage, access to all integrations and extensions, full version history and community support. Pro is $20 per month and adds priority compilation, $20 of AI credits per month with generous auto-credits, inline tab autocomplete, reference management, custom templates and priority support. Max is $40 per month with the same feature set and $40 of AI credits per month, aimed at power users who need maximum AI. The vendor's FAQ addresses plan switching, a Pro trial, document retention after cancellation, student and academic discounts and self-hosting.

Online course marketplace with 200,000+ courses

💰 Individual courses $14.99-$199.99. Business $30/user/mo

AI visibility tracking plus the content and outreach work needed to get cited more

💰 Four tiers, all priced per domain per month, each with a 7-day free trial and no charges during the trial. Lite is $37 per domain per month for solo agencies and marketers: 1 answer engine (ChatGPT), 40 prompts tracked, 2 content generations, 1,200 responses analysed, unlimited implicit outreach and explicit content opportunities, brand sentiment analysis, all-time history, daily monitoring, GSC integration and 1 strategic monthly call. Essential — marked most popular — is $97 per domain per month for 2 answer engines (ChatGPT and AI Overviews), 100 prompts, 5 content generations, 6,000 responses analysed and 2 monthly calls. Starter is $297 per domain per month for 5 answer engines (adding Gemini, Perplexity and AI Mode), 400 prompts, 15 content generations, 60,000 responses and 3 monthly calls. Pro is $497 per domain per month for 5 engines, 1,000 prompts, 70 content generations, 150,000 responses and 5 monthly calls. Content Optimization is marked BETA on every plan.

AI writing assistant for researchers writing papers in English, with PubMed and Crossref citations inside the editor.

💰 Free trial with no credit card required. Pro is $12/month billed yearly ($144/year) or $24/month month-to-month, covering inline suggestions, the advisor, precision mode and PubMed/Crossref references. A 50% discount on yearly plans was running at verification.

Computational knowledge engine for math, science, and data.

💰 Free tier available. Pro $9.99/mo (or $5/mo at $60/year). Pro Premium $12/mo (or $8.25/mo at $99/year) with extended computation time and higher file uploads.

Citation-backed AI writing assistant for essays, papers, literature reviews and theses

💰 Pro is listed at $9/month on annual billing under a summer sale (against $12), billed at $108 annually, and includes efficient AI models, chat with PDFs and images, academic and web search, your library, and 1,000 AI actions per month. Ultra is listed at $14/month on annual billing under the same sale (against $19), billed at $168 annually, and adds frontier models and unlimited AI actions. The default chat model and document editing never consume credits, and extra credits can be purchased at any time and do not expire.

AI search engine with chat and multimodal features

💰 Free tier. Pro $20/mo with unlimited AI queries