What does the production LLM observability stack look like in 2027?
Direct Answer In 2027, the production LLM observability stack is built around four layers: (1) trace capture with LangSmith, Langfuse, Arize Phoenix, or Honeycomb, (2) eval-in-production with Promptfoo, Braintrust, or Helicone, (3) cost and…
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