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LLM Observability: Seeing Inside the Black Box with LangFuse and W&B Weave
89% of teams running LLM agents in production now use observability tooling. For good reason: AI systems fail silently, and silent failures in DeFi agents are expensive. Here is the 2026 landscape of LLM observability — LangFuse, W&B Weave, and what every production AI system actually needs to track.