Helicone vs Langfuse
A side-by-side look at scores, pricing and features — with RECATOOLS' ASEAN-aware verdict for each.
Helicone
Open-source LLM observability, now in maintenance mode
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Langfuse
Open-source LLM observability, tracing and evals
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| RECATOOLS Score | 7.6 / 10 | 8.4 / 10 |
| Capability | ||
| Value for money | ||
| Ease of use | ||
| ASEAN readiness | ||
| API quality | ||
| Pricing | Open Source | Freemium |
| Free tier | Apache-2.0 open-source stack, free to self-host with Docker; maintenance-only updates. Hosted Hobby tier (10,000 requests/mo) is closed to new sign-ups | Self-host free under MIT (enterprise modules need a key); cloud Hobby plan free with 50k units/month, 30 days data access, 2 users |
| Paid from | Hosted Pro listed at $79/mo, but new sign-ups have been disabled since March 2026 | $29/month (Langfuse Cloud Core) |
| Has API | ✓ | ✓ |
| Open source | ✓ | ✓ |
| Free to use | ✓ | ✓ |
| Users | — | — |
| Founded | 2023 | 2023 |
| Maker | Mintlify (acquired March 2026) | ClickHouse, Inc. |
| Verdict | Helicone was one of the lowest-friction ways to see what your LLM calls cost. Since Mintlify acquired it in March 2026 it has been in maintenance mode, with security fixes and new-model support but no new features, and n... |
Langfuse covers the core of LLM observability: nested traces with cost and latency, prompt versioning, datasets, experiments and LLM-as-judge evaluators, through framework-agnostic SDKs and OpenTelemetry. The MIT core se... |
| Full review → | Full review → |
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Comparisons cover up to 4 tools. Scores are RECATOOLS editorial assessments; verify current pricing on each vendor's site.