Product
Compare
OpenLIT vs Alternatives: Agent Observability & Evals Tools Compared
OpenLIT is an open-source agent harness engineering platform: OpenTelemetry-native agent observability, evals, guardrails, prompt management, and cost and GPU monitoring for AI agents and coding agents. Free to self-host under Apache 2.0.
See how OpenLIT compares with other agent observability, agent evals, and LLM observability tools.
Why teams choose OpenLIT
- OpenTelemetry-native: vendor-neutral, portable telemetry data
- GPU monitoring for NVIDIA GPUs out of the box
- Self-hostable with Apache 2.0 license, free forever
- Vector DB monitoring alongside LLM tracing
- 60+ integrations across LLMs, frameworks, Vector DBs, and GPUs
- Prompt Hub, Vault, and Fleet Hub included
Detailed Comparisons
OpenLIT vs Langfuse
OpenLIT vs Langfuse: OpenLIT is an Apache-2.0, OpenTelemetry-native Langfuse alternative with GPU monitoring, guardrails and Vault. Features and when to pick each.
OpenLIT vs Helicone
OpenLIT vs Helicone: an open-source Helicone alternative for agent observability and evals. SDK-based, OpenTelemetry-native, self-hostable with no proxy required.
OpenLIT vs LangSmith
Self-hosted, Apache-2.0 LangSmith alternative. Compare tracing, agent evals, prompt management, OpenTelemetry support, pricing and lock-in.
OpenLIT vs Datadog LLM Observability
OpenLIT vs Datadog: an open-source Datadog LLM Observability alternative for agent observability, evals and guardrails. Self-host free under Apache 2.0.
OpenLIT vs Arize Phoenix
OpenLIT vs Arize Phoenix: an Apache-2.0 Phoenix alternative with self-hosted traces, agent evals, Prompt Hub, guardrails and GPU monitoring.
OpenLIT vs Comet Opik
OpenLIT vs Comet Opik: compare two Apache-2.0 agent observability platforms. OpenLIT adds OTel-native GPU telemetry, Prompt Hub, Vault and guardrails.
OpenLIT vs Braintrust
OpenLIT vs Braintrust: an open-source Braintrust alternative for agent evals and observability. Apache 2.0, self-host free, OpenTelemetry-native.
OpenLIT vs OpenLLMetry
OpenLIT vs OpenLLMetry: OpenLLMetry is an OTel instrumentation library; OpenLIT is a full self-hosted agent harness platform with tracing, evals and guardrails.
Get started
Ready to use the OpenLIT UI in production?
Self-host or connect your stack in minutes. Same harness UI for traces, dashboards, prompts, and evaluations.