Open Source LLM Observability: Finding the Right Alternative to Langfuse, Helicone, and Braintrust
As AI applications move from prototypes to production, developers need more than basic logs. They need to understand model costs, latency, tokens, errors, prompts, responses, and multi-step agent workflows. This is where open source LLM observability becomes essential.
Spanlens is designed for teams that want an open-source, self-hostable observability platform without rebuilding their...
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