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Helicone vs Opik

The same facts for both, read from GitHub every night, and the relation a person reviewed.

HeliconeOpik
LanguageTypeScriptPython
LicenceApache-2.0Apache-2.0
Stars6.2k22k
Latestv2025.08.21-12.2.92
Last push2026-09-162026-10-06
Release cadenceabout 1 day between releasesabout 1 day between releases
Active contributors3 commit authors on the default branch in the last 90 days50+ commit authors on the default branch in the last 90 days
Flagsnonenone

How they relate

  • Both replace LangSmith. Alternatives to LangSmith →

    PartialHeliconeLogs requests through a proxy gateway, with cost tracking and prompt versions, lighter on agent traces and evaluations.

    Full replacementOpikTracing, datasets, experiments and LLM-as-a-judge evaluations.