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Best AI LLM APIs & Models Tools

Foundation models, inference APIs, and model hosting platforms for developers building on LLMs

Foundation ModelsInference APIsModel HostingFine-TuningOpen Source ModelsRouting

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All LLM APIs & Models Tools (48)

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Mistral Medium 3 logo

Mistral Medium 3

Enterprise GPT-4o-class performance at $0.40/$2.00 per million tokens — Mistral's mid-tier powerhouse

paid
mistralllm
Mistral Saba logo

Mistral Saba

Mistral's 24B regional LLM — Arabic & South Asian languages, 150+ tok/s, self-hostable

paid
mistralarabic
Mistral NeMo logo

Mistral NeMo

Mistral × NVIDIA 12B open-weight model — 128k context, Tekken tokenizer, FP8 inference, Apache 2.0

freemium
mistralnvidia
Codestral Mamba logo

Codestral Mamba

Mistral's 7B Mamba-architecture coding model — linear-time inference, 256k context, Apache 2.0

free
mistralopen-source
Mathstral 7B logo

Mathstral 7B

Open-weight 7B math specialist from Mistral AI — STEM reasoning, MATH benchmark SOTA at release

free
mistralopen-source
Mixtral 8x22B logo

Mixtral 8x22B

Mistral's largest open-weights MoE — 141B total / 39B active, Apache 2.0

freemium
mistralmixtral
Claude Fable 5 logo

Claude Fable 5

Anthropic's most capable model — state-of-the-art coding, vision, and long-horizon tasks

paid
anthropicclaude
Understudy Labs logo

Understudy Labs

Captures traces from your production LLM work, then trains a cheaper open-weight model that beats the eval

paid
fine-tuningopen weights
Conifer logo

Conifer

Local-first least-cost inference router that keeps routine requests on your own hardware

free
inference routinglocal llm
EvoLink logo

EvoLink

One OpenAI-compatible API key for 75+ LLM, image, video, and audio models with smart routing and failover

paid
llm apimodel router
Yolo-Auto logo

Yolo-Auto

Flat-rate, unmetered OpenAI-compatible API serving Qwen3.6-35B, priced by concurrency instead of tokens

paid
llm-apiopenai-compatible
Mood Metrics API logo

Mood Metrics API

Real-time sentiment API with confidence scores, emotions and a financial mode

freemium
sentiment-analysisapi
APIMart logo

APIMart

One OpenAI-compatible key for GPT, Claude, Gemini, Sora and Flux, billed pay-as-you-go below list price

paid
llm-apiapi-gateway
Factagora logo

Factagora

Fact-verification API returning confidence-scored verdicts with cited sources, for grounding LLM output

freemium
fact-checkinghallucination
Defapi logo

Defapi

Credit-based gateway to image, video, text and music models from multiple vendors, from a $5 top-up

paid
llm-apimodel-gateway
LLMAPI logo

LLMAPI

OpenAI-compatible gateway to 400+ models across Anthropic, OpenAI, Google, xAI and DeepSeek with spend analytics and per-key IAM, token pools from $30/month

paid
llm-gatewayopenai-compatible
HiAPI logo

HiAPI

One API for image, video and audio models with persistent artifact links and MCP support, free API key with up to 2,000 credits then usage-based

freemium
image-generation-apivideo-generation
Compute Prices logo

Compute Prices

Daily-refreshed price index for 67 GPU providers and 26 LLM inference APIs with an agent-friendly JSON API, free key at 750 requests/day

freemium
gpu-pricingllm-pricing
Supavec logo

Supavec

Open-source RAG-as-a-service API built on Supabase row-level security — upload documents, query for cited context, self-host if you want

freemium
open-sourcerag
Apiframe logo

Apiframe

One credit-based API and MCP endpoint for Midjourney and 70+ other generative media models, with webhooks, a Studio UI and no per-seat fees

paid
apimidjourney
Semarize logo

Semarize

Conversational intelligence as an API — configurable extraction kits that return structured deal signals from call transcripts

freemium
apisales
ChatComparison.ai logo

ChatComparison.ai

Runs one prompt against 40+ models side by side with per-response cost and a routing recommendation, on one $15/mo seat

paid
model-comparisonchatgpt
OpenRouter Model Price Snapshot logo

OpenRouter Model Price Snapshot

Export public OpenRouter model names and prompt list prices into Apify dataset records.

paid
AICost logo

AICost

AICost is an independent price desk for AI models, built around one question: what will this actually cost me?

free
bnrouter logo

bnrouter

OpenAI-compatible AI API gateway — one endpoint to route, meter, and monetize access to major model providers.

freemium
PoYo.ai logo

PoYo.ai

One API for AI image, video, music, chat, and 3D generation

paid
Heabsy AI Inference logo

Heabsy AI Inference

OpenAI- and Anthropic-compatible EU inference API with zero data retention on the EEA tier.

freemium
ToolPilot logo

ToolPilot

Compare AI model API pricing and estimate token costs for developer workloads.

free
APIClaw logo

APIClaw

Access multiple AI models with a single API key.

freemium
Jev logo

Jev

Typed System One model for decision-making.

freemium
ToAPIs logo

ToAPIs

OpenAI-compatible gateway for 50+ text, image, and video AI models.

freemium
DiscountedTokens logo

DiscountedTokens

Prepaid GPT-5.x API, one key, from US$5

paid
ModelRush logo

ModelRush

One OpenAI-compatible API for text, image, video, and voice models.

paid
XiuRouter logo

XiuRouter

One API for leading AI models, with selected routes saving 90%+ versus provider reference prices.

paid
Standard Compute logo

Standard Compute

Standard Compute — description pending review.

freemium
social media chat reconstruct logo

social media chat reconstruct

social media chat reconstruct — description pending review.

freemium

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