Side-by-side comparison of Langfuse
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| Feature | |
|---|---|
| STOA Rating | 7.8 |
| Description | Open-source LLM observability and engineering platform. Traces every LLM call, tracks costs and latency, manages prompts, runs evaluations. Debug, optimize, and improve AI products in production. Self-hosted: free. Cloud Hobby: free (50K observations/month). Core: $29/month. Pro: $199/month. |
| AI Features | AI-Powered LLM-as-a-judge evaluations, AI-assisted prompt optimization, and deep observability into AI agent and LLM call behavior in production. |
| Categories | Understand Your Numbers |
| STOA's Verdict | One of the best tools for understanding what your AI application does in production. Open-source, generous free tier, framework-agnostic. If building LLM products and tracking performance and quality, Langfuse belongs on your shortlist. |
