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Helicone vs Laminar

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

HeliconeLaminar
LanguageTypeScriptTypeScript
LicenceApache-2.0Apache-2.0
Stars6.2k3.3k
Latestv2025.08.21-1v0.2.5
Last push2026-09-162026-10-06
Release cadenceabout 1 day between releasesabout 7 days between releases
Active contributors3 commit authors on the default branch in the last 90 days8 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 replacementLaminarTracing, evaluations and datasets for LLM apps and agents, with OpenTelemetry ingestion.