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The maturity phases of running evals — Phil Hetzel, Braintrust

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Describes the maturity phases of running evaluations for AI systems—a structured methodology for testing agentic applications. Teaches a concrete framework for organizing eval practices at different scales.

A 19-minute video from AI Engineer: “The maturity phases of running evals — Phil Hetzel, Braintrust”.

Programming & CS

Video by AI Engineer, played through YouTube's embedded player.

Part of Evals & Benchmarks @ AI Engineer