OpenLIT

OpenLIT is ranked #6 of 30 in ai agent observability tools on Freedom251. It runs on API, Linux, macOS, Self-hosted, Web, Windows. There is a free plan.

OpenLIT plans and pricing

All plans

OSS Free Unlimited self-hosted usage · unlimited users · unlimited projects and environments · community support (GitHub) openlit.io · 29 Sept 2026

Cloud Not published Coming soon · fully hosted · pricing and feature set shared at launch openlit.io · 29 Sept 2026

Compared on ai agent observability tools

Free plan: Yes
Deployment options: self_hosted
Cost tracking: Yes

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OpenLIT

What it does: OpenLIT is an open-source Agent Harness Engineering platform for LLM tracing, evaluations, prompt management, and cost tracking, built on OpenTelemetry.
Tracing: LLM tracing can capture calls, tools, and retrievals, with filters for user, session, cost, latency, and metadata.
Evaluations: Evaluations support LLM-as-a-judge, heuristics, or human review on production traffic or experiments.
Prompt Hub: Prompt Hub supports prompt versioning, dynamic variables, API retrieval, unlimited prompt fetching, and AI-assisted improvement.
Model comparison: OpenGround compares models side by side for latency, tokens, and cost, and supports bring-your-own-key model comparison.
Coding agent monitoring: Coding agent observability tracks sessions, cost, tokens, repository activity, and code impact.
Integrations: The site lists 56+ integrations across LLMs, agent frameworks, vector databases, and GPUs, including OpenAI, Anthropic, LangChain, Pinecone, and NVIDIA NIM.
Deployment: The platform can be self-hosted using Docker Compose or Kubernetes Helm and accepts OpenTelemetry data through OTLP.
License and data: OpenLIT is Apache 2.0 licensed, and its site says self-hosting keeps prompts, traces, and secrets in the user's environment.
Secret storage: Vault provides encrypted storage for LLM API keys using AES-256-GCM, with key and tag based retrieval and API authentication.
Security sign-in: The OSS plan lists sign-in with Google, Azure AD, and GitHub.
Support: The OSS plan includes community support on GitHub.
Notable limits: Fleet Hub lists single-cluster collector monitoring, while the self-hosted plan lists unlimited usage, historical data, users, projects, and environments.
Company background: OpenLIT says the project is community-driven, built in public on GitHub, and used by developers worldwide.
Price from: Free

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Where it ranks on Freedom251

Best AI Agent Observability Tools in 2026#6 of 30
Best LLM Observability Tools in 2026#9 of 25
Best Model Monitoring Software in 2026#6 of 24
Best AI LLM Observability Tools in 2026#12 of 23

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Sources

openlit.io/about-us· checked 29 Sept 2026
openlit.io· checked 29 Sept 2026
openlit.io/pricing· checked 29 Sept 2026