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Langfuse vs MLflow (Tracing & GenAI)
Quick verdict
Langfuse and MLflow (Tracing & GenAI) are closely matched on licensing, self-hosting and OpenTelemetry support — the decision comes down to pricing and framework integrations below.
Side-by-side comparison from the Agent Observability Index: licensing, self-hosting, pricing model and integrations — no vendor copy, primary sources linked.
| Langfuse | MLflow (Tracing & GenAI) | |
|---|---|---|
| One-liner | Open-source (MIT) LLM engineering platform combining tracing, prompt management, evals and datasets, widely used as the default self-hosted observability stack. | The MLOps standard's GenAI extension: trace logging, LLM evaluation and prompt registry inside open-source MLflow 3. |
| Category | Observability & Tracing | Observability & Tracing |
| OpenTelemetry-native | Yes | Yes |
| Open source | Yes | Yes |
| Self-hostable | Yes | Yes |
| Pricing model | freemium | free |
| Pricing notes | Free Hobby tier (50k units/mo); Core $29/mo, Pro $199/mo, unlimited users on paid tiers; MIT core fully self-hostable | Apache-2.0, free; managed versions via Databricks |
| Frameworks | langchain, openai-sdk, llamaindex, litellm, opentelemetry, vercel-ai, haystack | openai-sdk, langchain, llamaindex, dspy, anthropic, opentelemetry |
| GitHub stars | 29k | 26.5k |
| Maturity (GitHub signal) | 90/100 (Mature) | 100/100 (Mature) |
| Funding / ownership | YC W23; $4M seed (Lightspeed, La Famiglia) | Linux Foundation project, primarily backed by Databricks |
How to choose
- Both link to primary pricing sources below — verify current tiers before committing; this market shifts monthly.
Sources: Langfuse · MLflow (Tracing & GenAI)
Frequently asked questions
Is Langfuse or MLflow (Tracing & GenAI) open source?
Langfuse: Yes. MLflow (Tracing & GenAI): Yes.
Can Langfuse and MLflow (Tracing & GenAI) be self-hosted?
Langfuse: Yes. MLflow (Tracing & GenAI): Yes.
Langfuse vs MLflow (Tracing & GenAI): which should I choose?
Langfuse and MLflow (Tracing & GenAI) are closely matched on licensing, self-hosting and OpenTelemetry support — the decision comes down to pricing and framework integrations below.