Opik

Open-source LLM observability and evaluation platform for tracing, evals, prompt management and monitoring.

Active LLM gateway & observability Apache-2.0

Quick answer

Opik is an open-source LLM observability and evaluation platform for tracing, evals, prompt management and monitoring, listed under LLM gateway & observability. A typical small-business use: trace and debug an internal RAG chatbot or agent, call by call. The project publishes no official RAM figure, so we do not estimate a monthly server cost. License: Apache-2.0, which allows internal business use.

Last updated · facts verified against official docs on · sources

GitHub stars22.9k
Forks1.9k
Latest release2.2.119Oct 23, 2026
Last commitOct 23, 2026
Est. server cost—

Activity data comes from GitHub and was last refreshed Oct 24, 2026.

What is Opik?

Opik, built by Comet, records traces of LLM calls and agent runs, lets you build datasets and run experiments and evaluations, manage prompts, score production traffic with online evaluation rules and watch dashboards. It has Python and TypeScript SDKs, OpenTelemetry support and integrations for many agent frameworks. The server, web app and evaluation features are Apache-2.0 and can be self-hosted with Docker Compose (for local use) or a Helm chart on Kubernetes (for production). A managed Opik Cloud exists.

Where it fits in a 10–200 person business

  • Trace and debug an internal RAG chatbot or agent, call by call
  • Regression-test prompts and models against a dataset before shipping a change
  • Monitor production LLM traffic, token usage and feedback scores

These use cases are our editorial suggestions, not claims made by the project.

Can a business use Opik? (license)

LicenseApache-2.0
TypePermissive: MIT / Apache-2.0: use, modify and sell with few obligations.
Internal business useAllowed under the license text
What to watchPermissive. Internal and commercial use allowed; keep license and notices.

This is a plain-English summary of the license text, not legal advice. Third-party models you run with it have their own licenses.

Data & compliance: does Opik phone home?

Telemetry (usage data sent to the vendor) On by default

The official docker-compose.yaml sets OPIK_USAGE_REPORT_ENABLED to true by default and passes an anonymous installation ID. The docs do not describe what the usage report contains.

How to turn it off: Set OPIK_USAGE_REPORT_ENABLED=false.

Source: github.com/comet-ml/opik/blob/main/deployment/docker-compose/docker-compose.yaml

Other calls home by default (updates, marketplaces, default cloud services) Not documented
Single sign-on (OIDC / SAML / LDAP) Paid / enterprise only

By protocol: OIDC paid · SAML paid · LDAP paid.

SAML, OIDC, LDAP and JWT authentication are Enterprise features and are not available in open-source deployments.

Source: www.comet.com/docs/opik/administration/authentication/overview

Audit log Not documented
Role-based access control (RBAC) Paid / enterprise only

Role-based access control and user management are listed as Opik Cloud and Enterprise features; the self-hosted open-source edition has no user management.

Source: www.comet.com/docs/opik/administration/overview

Data residency / GDPR notes from the project Not documented

Checked against the project's own docs and repository on . "Not documented" means we could not find the answer in official sources; it does not mean the feature is missing or that no data is sent. Third-party services you connect (model APIs, vector databases, search engines) have their own data policies. Compare all apps.

What hardware does Opik need?

The project does not publish a minimum CPU/RAM figure, so we leave the official value blank rather than guess.

The self-hosting docs publish no CPU, RAM or disk figures for the Docker Compose or Kubernetes installs. The stack runs several services (MySQL, Redis, ClickHouse, ZooKeeper, MinIO, backend and frontend), so size the server for those.

Source: www.comet.com/docs/opik/self-host/local_deployment

How much does it cost to host Opik per month?

The project publishes no RAM figure we could verify, so we do not estimate a cost.

How to deploy Opik

Method: Docker Compose

git clone https://github.com/comet-ml/opik.git
cd opik
./opik.sh
# UI on http://localhost:5173; point the SDK at it with: opik configure --use_local

From the official instructions: www.comet.com/docs/opik/self-host/local_deployment. Always check the source for the current version before you run it.

Known gotchas when self-hosting Opik

  • The open-source self-hosted edition has all tracing and evaluation features but no user management. Roles, SSO (SAML/OIDC) and workspace access control are Opik Cloud and Enterprise only, so keep the instance on a private network. source
  • The Docker Compose install is meant for getting started and is not production-ready; the docs recommend the Kubernetes Helm chart for production. source
  • ./opik.sh --clean (or docker compose down --volumes) removes all Opik data volumes; the data cannot be recovered. Use ./opik.sh --stop to stop without losing data. source
  • The bundled docker-compose.yaml turns usage reporting on by default (OPIK_USAGE_REPORT_ENABLED=true) and ships example MinIO credentials; change both for anything beyond a local test. source

Alternatives in LLM gateway & observability

  • LiteLLM AI gateway that puts 100+ LLM providers behind one OpenAI-compatible API with keys and budgets.
  • Langfuse LLM observability with tracing, prompt management, evaluations and cost tracking.

Opik FAQ

How much RAM does Opik need?

Opik does not publish an official RAM figure, so we do not state one. The self-hosting docs publish no CPU, RAM or disk figures for the Docker Compose or Kubernetes installs. The stack runs several services (MySQL, Redis, ClickHouse, ZooKeeper, MinIO, backend and frontend), so size the server for those.

How much does it cost to self-host Opik?

The software is free to download. The project publishes no official RAM figure, so we do not estimate a monthly server cost.

Is Opik free for commercial use?

Opik is licensed under Apache-2.0 (Permissive). Internal business use is allowed under the license text. Permissive. Internal and commercial use allowed; keep license and notices. This is a summary, not legal advice.

What are common problems when self-hosting Opik?

The open-source self-hosted edition has all tracing and evaluation features but no user management. Roles, SSO (SAML/OIDC) and workspace access control are Opik Cloud and Enterprise only, so keep the instance on a private network. The Docker Compose install is meant for getting started and is not production-ready; the docs recommend the Kubernetes Helm chart for production. ./opik.sh --clean (or docker compose down --volumes) removes all Opik data volumes; the data cannot be recovered. Use ./opik.sh --stop to stop without losing data. The bundled docker-compose.yaml turns usage reporting on by default (OPIK_USAGE_REPORT_ENABLED=true) and ships example MinIO credentials; change both for anything beyond a local test.

Is Opik still maintained?

Yes, it is actively developed. Last commit: Oct 23, 2026. Latest release: 2.2.119 (Oct 23, 2026). Checked Oct 24, 2026.

How do I install Opik?

The official method is Docker Compose. The exact commands are in the "How to deploy" section above and in the official instructions: https://www.comet.com/docs/opik/self-host/local_deployment

What are self-hosted alternatives to Opik?

Other apps in LLM gateway & observability: LiteLLM, Langfuse.

Sources

Facts on this page were checked against the project's own repository and docs on 2026-10-24. Spotted something out of date? Tell us.