Langfuse Pricing in May 2026

Langfuse's pricing follows tiered structure: Free Cloud (50K events/month), Hobby at $19/month for 100K events, Pro at $79/month for 500K events, Enterprise custom-quote. Self-hosted Langfuse is genuinely free under MIT license.

The Free Plan offer is genuinely valuable. The strategic decision: Langfuse's value is the open-source self-hostability combined with feature parity to LangSmith for teams who want LLM observability without vendor lock-in. For broader LLM observability, LangSmith (LangChain) is the most direct alternative with deep LangChain integration — usually preferred for teams already using LangChain framework. Helicone targets proxy-based zero-touch observability — different integration model than Langfuse's SDK approach. Braintrust targets evaluation specifically with strong offline-eval workflows. PromptLayer targets prompt management. Portkey targets API gateway plus observability. Arize AI Phoenix and WhyLabs target ML observability more broadly. Weights & Biases added LLM tracing (Weave) and is common for teams already using W&B. For specifically prompt-engineering platforms, PromptHub, Promptable, and Vellum AI target prompt versioning with deeper workflow integration. For specifically evaluation alongside observability, Braintrust, LangSmith, and Langfuse all include eval — choice often depends on framework anchoring. Langfuse's distinctive combination: open-source self-hostable + comprehensive feature scope + managed cloud option for teams who want managed but with portability path. For teams committed to LangChain framework, LangSmith is the natural choice. For teams not on LangChain or wanting open-source portability, Langfuse is one of the strongest alternatives.