compare
Laminar vs Langfuse
The same facts for both, read from GitHub every night, and the relation a person reviewed.
| Fact | Laminar | Langfuse |
|---|---|---|
| Language | TypeScript | TypeScript |
| Licence | Apache-2.0 | Other |
| Stars | 3.3k | 35k |
| Latest | v0.2.5 | v4.53.0 |
| Last push | 2026-10-06 | 2026-10-06 |
| Release cadence | about 7 days between releases | about 1 day between releases |
| Active contributors | 8 commit authors on the default branch in the last 90 days | 33+ commit authors on the default branch in the last 90 days |
| Flags | none | none |
How they relate
Both replace LangSmith. Alternatives to LangSmith →
Full replacementLaminarTracing, evaluations and datasets for LLM apps and agents, with OpenTelemetry ingestion.
Full replacementLangfuseTracing, prompt management, datasets and evaluations, with OpenTelemetry ingestion.
Laminar
- v0.2.52026-09-13LAM-2218: log SQL memory-limit hits at warn instead of error by @laminar-coding-agent[bot] in
- v0.2.42026-09-06chore(frontend): replace ESLint + Prettier with oxlint + oxfmt
- v0.2.32026-08-30LAM-2111: log ingestion rate-limit rejections by @laminar-coding-agent[bot] in
- v0.2.22026-08-25LAM-1903: virtualize debugger session timeline with lazy batched trace loading by @laminar-coding-agent[bot] in
- v0.2.12026-07-09refactor(LAM-1789): sync signals OTEL tracing refactor to OSS by @laminar-coding-agent[bot] in
Langfuse
- v4.53.02026-10-06feat(ai-gateway): expose resolution context in response headers, spans and logs
- v4.52.02026-10-06feat(trace-batch): bound batches by estimated weight and exclude oversized traces
- v4.51.02026-10-05feat(mcp): support decision-model evaluators
- v4.50.02026-10-02feat(web): show error id in tRPC error toast and include it in issue reports
- v4.49.02026-10-01feat(web): add org-level ingestion overview tRPC route
Laminar
✓ signed The latest release, v0.2.5, carries a signature GitHub verified.
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Langfuse
unsigned The latest release, v4.53.0, carries no signature GitHub could verify.
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