
Braintrust.dev
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Helicone AI
LangSmith
Future AGI
Galileo AI
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Braintrust.dev
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Braintrust focuses on evaluation-driven development: the idea that monitoring LLM applications means continuously scoring outputs against quality criteria, not just tracking latency and error rates. It's an eval platform first, with observability features built on top of the evaluation infrastructure. - Source: dev.to / 30 days ago
You're monitoring production traffic. You need Langfuse / Phoenix / Helicone / Braintrust for that. Online eval is a different problem class: implicit feedback, drift detection, hallucination rates on your data, not on HellaSwag. - Source: dev.to / about 1 month ago
Same approach works with Langfuse, Phoenix, Braintrust, or your existing OTel pipeline โ the metadata.userId pattern is the universal part. - Source: dev.to / about 2 months ago
Langfuse - Langfuse is an open-source LLM engineering platform that helps teams collaboratively debug, analyze, and iterate on their LLM applications.
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Helicone AI - Open-source LLM Observability for Developers
LangSmith - Build and deploy LLM applications with confidence
Future AGI - Open-source engineering stack for self-improving AI Agents
Galileo AI - ChatGPT, but for UI design