Open-source tracing and evals from Comet, for development and production. Built by Comet.
Others in observability
Common questions
Is Opik free to use?
Opik is open source and free to run yourself. You still pay whichever model provider you point it at, and this tutorial is free with no signup.
Do I need to know Python to use Opik?
Basic Python is enough. Functions, dictionaries and imports cover most of what Opik asks of you.
When should I not use Opik?
When something else in observability fits the job better. The others in that group are listed below.
Lessons for Opik are being written. Meanwhile the APIs for AI tutorial covers the same ground: state, tools, loops, memory and human approval. Most of it carries straight over.
Start the APIs for AI tutorial →