Lunary Pricing 2026
Complete pricing guide for Lunary — plans, costs, and free options.
💰 Lunary Pricing Overview
Lunary uses a freemium pricing model. Free tier available with optional paid upgrades. Current pricing: Free $0/mo for personal projects, no credit card — 10,000 events per month, 3 projects, 30 days log retention, 1 seat, 1 month history. Team $20 per user per month — 50,000 events included then $10 per additional 50k per month, AI Playground (1,000 queries/month then $0.05 per query), unlimited projects, 1 year history, up to 10 seats, custom dashboards, human reviews, topics and exports. Enterprise is custom, adding self-hosting, SSO/SAML, granular access control, PII masking, SOC 2 and ISO 27001 reports, a 99.9% SLA, data-warehouse connectors, audit papertrail and white labelling.. Lunary is a popular ai agent infrastructure tool known for observability and prompt management for llm apps — event logs, traces, cost and latency tracking, versioned prompts and human review.. You can get started with Lunary for free and upgrade to a paid plan as your needs grow.
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🔍 Compare Before You Buy
See all 5 alternatives →Comparing Lunary to similar tools helps you make the best choice for your budget and needs:
Respan
FreemiumUnified LLM observability, evaluations, prompt optimisation and AI gateway in one platform
Free plan + paid from $199/month
Compare with Lunary →Silicon Psyche Labs
FreemiumBehavioural telemetry for LLMs — measures drift, sycophancy and hallucination risk from the outside
Free Forever tier for trying the platform and light personal use: 50 analyses/month, 5 sessions, all metrics and API access. The public browser tool needs no account at all. Business (higher volume limits, unlimited sessions, full API access, batch analysis) and Enterprise (unlimited analyses and sessions, full API access, priority support, for organisations with compliance needs) are both quoted on contact rather than published — the vendor states plans are tailored per customer.
Compare with Lunary →Spanlens
FreemiumMIT-licensed LLM observability with one-line setup, agent tracing, PII detection and cost anomaly alerts
Free plan + paid from $29/month
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Lunary Plans & Pricing
Free
$0/mo for personal projects, no credit card — 10,000 events per month, 3 projects, 30 days log retention, 1 seat, 1 month history
Team
Per user per month — 50,000 events included then $10 per additional 50k per month
AI Playground (1,000 queries/month then
Per query), unlimited projects, 1 year history, up to 10 seats, custom dashboards, human reviews, topics and exports
Enterprise
Is custom, adding self-hosting
* Pricing information is based on publicly available data and may not reflect current promotions, annual discounts, or regional pricing. Visit the official Lunary website for the latest pricing.
Is Lunary Free?
Lunary offers a free tier that lets you try the platform without any payment. The free plan typically includes core features with usage limits. For power users, paid plans unlock additional features, higher limits, and priority support.
Check Lunary pricing at the source
The breakdown above is our summary of Lunary's published pricing, not a quote. Plans, limits and what each tier includes change without notice — confirm on Lunary's own pages before you buy.
Official Lunary site ↗We do not represent Lunary and these links are not paid placements.
Is Lunary Worth It?
Lunary is a freemium ai agent infrastructure tool that offers 6 key features including Event logging with searchable traces for production and staging, Cost, latency and quality tracking in one place, Versioned prompt management decoupled from application code. Lunary is an observability and prompt-management platform for applications built on LLMs, covering the gap between a prototype that works in a notebook and a deployment you can be accountable for. It logs production and staging traffic as events, gives you searchable traces of what the model was asked and what it returned, tracks cost and latency, and surfaces how real users are actually interacting with a chatbot — which is routinely different from how the team assumed they would. Prompt management is versioned and separated from the application code, so a prompt change does not require a redeploy, and an AI playground lets you test variants against saved data before promoting one. Human review and topic clustering turn the raw log into something a product owner can act on, and Smart Views, custom dashboards and CSV/JSONL export cover the reporting layer. The platform is available self-hosted for teams whose data cannot leave their infrastructure, with SSO, granular access control, PII masking and data-warehouse connectors on the enterprise tier. It is a fit for small AI teams who need real observability without adopting a heavyweight enterprise APM, and the free tier covers personal projects at 10,000 events per month across three projects.
✅ Lunary is a good choice if you need:
- •Event logging with searchable traces for production and staging
- •Cost, latency and quality tracking in one place
- •Versioned prompt management decoupled from application code
- •AI playground for testing prompt variants on saved data
- •Human review, topic clustering and custom dashboards
💡 Value Assessment
With a free tier available, Lunary is an easy recommendation for anyone looking to try ai agent infrastructure tools without financial commitment. The paid plans offer good value for power users who need the additional features and higher usage limits.
Lunary Key Features
Lunary comes packed with features that make it a strong contender in the ai agent infrastructure space. Here's what you get:
Search and browse capabilities help you find what you need quickly.
Cost, latency and quality tracking in one place helps you work more efficiently with Lunary.
Versioned prompt management decoupled from application code helps you work more efficiently with Lunary.
Powered by advanced AI models, Lunary delivers intelligent content generation capabilities.
Customize Lunary to match your specific needs and preferences.
Self-hosting with SSO, RBAC and PII masking on enterprise helps you work more efficiently with Lunary.
Lunary Alternatives & Their Pricing
Considering alternatives to Lunary? Here's how competing tools compare on pricing:
Respan
FreemiumUnified LLM observability, evaluations, prompt optimisation and AI gateway in one platform
Pricing: Free is $0 with full platform access, 100k logs, 1k scores, 5 datasets, 2 evaluators, 5 prompts and 1 workspace. Team is $199/month (17% off annually) with 100k logs, 10k scores, unlimited datasets and workspaces, and 5 members; additional logs are $8 per 100k, additional scores $1 per 1k, and additional seats $15 per member. Enterprise is custom-priced with volume discounts, custom SLAs, a dedicated support engineer and a HIPAA BAA. HIPAA compliance is a $249/month add-on.
Silicon Psyche Labs
FreemiumBehavioural telemetry for LLMs — measures drift, sycophancy and hallucination risk from the outside
Pricing: Free Forever tier for trying the platform and light personal use: 50 analyses/month, 5 sessions, all metrics and API access. The public browser tool needs no account at all. Business (higher volume limits, unlimited sessions, full API access, batch analysis) and Enterprise (unlimited analyses and sessions, full API access, priority support, for organisations with compliance needs) are both quoted on contact rather than published — the vendor states plans are tailored per customer.
Spanlens
FreemiumMIT-licensed LLM observability with one-line setup, agent tracing, PII detection and cost anomaly alerts
Pricing: Self-hosting is free and fully featured — the project is MIT with no enterprise-only folder, run via docker compose. Hosted Free is $0/month for 50K requests/month with a hard 429 after, 1 seat, 1 workspace, unlimited projects, 14-day log retention, all core features, CSV and JSON export and community support. Pro is $29/month plus $8 per additional 100K requests for 100K requests/month, 3 seats, 2 workspaces, 90-day retention, 5 alerts and email support. Team is $149/month plus $5 per additional 100K requests for 1M requests/month, 10 seats, 5 workspaces, 365-day retention, unlimited alerts, Slack notifications, webhooks and priority support. Enterprise is custom with SSO (SAML/Okta) and a dedicated SLA. Prices exclude VAT/GST, added at checkout by Paddle.
PromptLayer
FreemiumPrompt CMS, eval harness and observability stack that lets domain experts version and ship prompts without touching the codebase.
Pricing: Free $0/month — 5 users, 2.5k requests/month, 1 workspace, 10 prompts, 750 agent node executions/month, 250 eval cell executions/month, 10MB max dataset. Pro $49/month — same base limits plus unlimited playgrounds, unlimited prompts and workspaces, 150MB max dataset, pay-as-you-go at $0.003 per transaction. Team $500/month — 25 users, 100k+ requests/month, 10k+ agent node executions, 7.5k+ eval cell executions, 1GB max dataset, webhooks, pay-as-you-go at $0.002 per transaction. Enterprise is custom, adding RBAC, deployment approvals, HIPAA with BAA, flexible hosting, dedicated support and data-retention control.
Mastra
FreemiumTypeScript agent framework with observability, evals, and cloud deployment, from the creators of Gatsby
Pricing: The framework is open source and free. Hosted platform tiers exist on the pricing page but the tier table is rendered client-side and not readable from a plain fetch, so no figure is quoted here.
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Frequently Asked Questions
Is Lunary free to use?
Yes, Lunary offers a free tier that you can use without paying. Paid plans starting at $20 unlock additional features and higher usage limits.
How much does Lunary cost in 2026?
As of 2026, Lunary pricing is: Free $0/mo for personal projects, no credit card — 10,000 events per month, 3 projects, 30 days log retention, 1 seat, 1 month history. Team $20 per user per month — 50,000 events included then $10 per additional 50k per month, AI Playground (1,000 queries/month then $0.05 per query), unlimited projects, 1 year history, up to 10 seats, custom dashboards, human reviews, topics and exports. Enterprise is custom, adding self-hosting, SSO/SAML, granular access control, PII masking, SOC 2 and ISO 27001 reports, a 99.9% SLA, data-warehouse connectors, audit papertrail and white labelling.. Pricing may vary based on billing cycle (monthly vs annual) and region. Visit the official Lunary website for the most current pricing.
What is the cheapest Lunary plan?
The cheapest option is the free tier. If you need premium features, the most affordable paid plan is Team at $20.
Does Lunary offer enterprise pricing?
Yes, Lunary offers custom enterprise pricing with features like dedicated support, custom integrations, enhanced security, and volume discounts. Contact their sales team for a personalized quote.
What are the best alternatives to Lunary?
Popular alternatives to Lunary include Respan, Silicon Psyche Labs, Spanlens. Each offers different features and pricing structures. Compare them on AISO Tools to find the best fit for your needs and budget.
Is Lunary worth the price?
Lunary is well-regarded in the agent-infrastructure space, offering features like Event logging with searchable traces for production and staging, Cost, latency and quality tracking in one place, Versioned prompt management decoupled from application code. Whether it's worth the investment depends on your specific needs, usage volume, and budget. The free tier lets you try it before committing to a paid plan.
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