Langfuse vs Helicone
Agent-native side-by-side. Scores are curated estimates on a 0–10 scale. Lock-in: higher = worse. Prefer JTBD picks via /api/decide when choosing for a job.
| Dimension | Langfuse | Helicone |
|---|---|---|
| Overall | 8.7 | 8.1 |
| Capability fit | 8.8 | 8.2 |
| Price / performance | 9.2 | 8.5 |
| Latency / reliability | 8.4 | 8.4 |
| Developer & agent DX | 8.8 | 8.8 |
| Privacy / data retention | 8.8 | 7.5 |
| Lock-in risk (higher = worse) | 2.5 | 4.0 |
| Maturity / track record | 8.2 | 8.0 |
| Pricing | Open-source + cloud; generous self-host; cloud from ~$29–59/mo tiers; EU-friendly. | Proxy/gateway logging; usage-based plans from low tens of $/mo; open-source components. |
| Tagline | Depot default observability for most agent teams: open, affordable, good enough to serious. | Maintenance mode since 2026-03-03 (Mintlify); site now says 'no longer part of Mintlify'. Runner-up only, not a pick. |
Langfuse
Depot default observability for most agent teams: open, affordable, good enough to serious. Strengths: OSS + cloud flexibility; Excellent agent/trace UI for the price; EU posture.
Strengths
- OSS + cloud flexibility
- Excellent agent/trace UI for the price
- EU posture
Weaknesses
- Enterprise features chase LangSmith
- You operate it if self-hosting
- Ecosystem still growing
Helicone
In maintenance mode since 2026-03-03 per Mintlify's acquisition post (https://www.mintlify.com/blog/mintlify-acquires-helicone); helicone.ai now shows 'Helicone is no longer part of Mintlify. Details to come soon.' (re-checked 2026-10-21). Replaced as the cost-monitoring and llm-rate-limit-shield pick on 2026-10-21 (by
Strengths
- Drop-in proxy for OpenAI-compat providers
- Cost and latency analytics
- Fast to adopt
Weaknesses
- Deeper agent-graph evals behind Braintrust/LangSmith
- Proxy hop considerations
- Feature race with peers
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