OpenLIT
Free to self-host, but lacks hosted option.
At a glance
Starts at
Free, self-hosted
Price as published by the vendor, September 2026.
Free tier
Yes
Platforms
Web, Linux, API
Best for
Developers and small teams.
Not for
Teams requiring zero-ops managed hosting
4.0 out of 5
Scored by a Toolio reviewer after real useOur verdict
OpenLIT is free for LLM tracing and evaluation, ideal for small projects. Teams needing managed hosting should consider alternatives.
✓What it does well
Free self-hostingUnlimited usage under Apache 2.0 license.
Comprehensive SDKsSupports multiple programming languages with native SDKs.
Real Data InsightsTracks spend, latency, and quality to improve cost and speed.
✕Where it falls short
No hosted optionLacks fully managed hosting solution for teams preferring zero-ops environments.
Limited integrationsDoesn't come with pre-built integrations like some competitors do.
Complex setupRequires manual deployment, not suited for beginners or non-technical users.
Key features
LLM tracingTracks LLM calls and performance.
Prompt managementManages prompts without needing to update app code.
Vault for secretsStores API keys securely outside of application code.
GPU MonitoringMonitors LLM inference via utilization, memory, temperature, and power.