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Langfuse
FadingWhat is Langfuse?
Open-source LLM observability platform. Traces, evals, prompt management, and metrics in one tool. Self-hostable alternative to LangSmith with a generous free cloud tier.
Heat Score18
Heat score updated Apr 29, 2026
-157d
Why this tool is flagged
Langfuse is holding steady at 18 (-15 pts this week). No strong momentum signal in either direction in the AI Observability space — this tool is in a stable phase. Good for reliability; less exciting for early-adopter advantage.Pricing
freemium
No blueprint uses Langfuse yet.
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