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Langfuse alternatives
4 tools to consider instead of Langfuse, shown against it.
| Langfuse | LangSmith | Helicone | Lunary | OpenLLMetry | |||||||||||||||||||||||||||||||||||||
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| Vendor | Langfuse | LangChain | Helicone | Lunary | Traceloop | ||||||||||||||||||||||||||||||||||||
| Pricing model | Free tier + paid plans | Usage-based | Free tier + paid plans | Free tier + paid plans | Free tier + paid plans | ||||||||||||||||||||||||||||||||||||
| Free tier | Yes | Yes | Yes | Yes | Yes | ||||||||||||||||||||||||||||||||||||
| Deployment | Cloud, Self-hosted | Cloud, Self-hosted | Cloud, Self-hosted | Cloud, Self-hosted | Cloud, Self-hosted | ||||||||||||||||||||||||||||||||||||
| Open source | Yes (MIT) | No | Yes | Yes | Yes (Apache-2.0) | ||||||||||||||||||||||||||||||||||||
| Best for | Teams that want open-source tracing they can self-host for free and later scale onto a managed cloud plan. | Teams already building on LangChain/LangGraph that want tracing and evaluation from the same vendor. | Teams that want low-friction, proxy-based logging of LLM API traffic without instrumenting application code deeply. | Teams with EU data-residency or GDPR requirements who want self-hosted or Europe-hosted LLM observability. | Teams that want vendor-neutral, OpenTelemetry-standard LLM instrumentation they can route to any compatible backend. | ||||||||||||||||||||||||||||||||||||
| Pricing | Free to self-host indefinitely; Langfuse Cloud has a free Hobby tier plus Core, Pro, and Enterprise monthly plans metered by observability units, with graduated per-unit overage pricing.
Prices read from the vendor's own page on September 21, 2026. Vendors change prices; check the source before you budget. | Free Developer tier includes a monthly trace allowance per seat, then usage-based charges for compute (LCU) and storage (LSU); Plus adds paid seats and deployment features; Enterprise is custom with self-hosted options.
Prices read from the vendor's own page on September 21, 2026. Vendors change prices; check the source before you budget. | Free Hobby tier for a limited number of monthly requests; paid Pro and Team monthly plans add unlimited seats, longer retention, and compliance, with usage-based overage beyond the included request volume; Enterprise is custom with on-prem deployment.
Prices read from the vendor's own page on September 21, 2026. Vendors change prices; check the source before you budget. | Free, self-hosted-only Community Edition; hosted Team plan is priced per user per month with a monthly event allowance and overage; Enterprise is custom (cloud or self-hosted); a separate Agency plan serves multi-client consultancies.
Prices read from the vendor's own page on September 21, 2026. Vendors change prices; check the source before you budget. | OpenLLMetry (the SDK) is free and open source with no usage limits; the optional Traceloop hosted dashboard has a free tier metered by monthly spans, plus a custom-priced Enterprise plan.
Prices read from the vendor's own page on September 21, 2026. Vendors change prices; check the source before you budget. | ||||||||||||||||||||||||||||||||||||
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