AI · 1h ago
OpenAI Playbook: Evaluation Harness Design Shapes Model Test Results
OpenAI released a playbook arguing that benchmark results depend on the evaluation harness, not just the model. The company says API settings, prompting, tool access, and scoring can materially affect conclusions about capability and safety. Developers are warned that a strong score in one environment may not transfer to another.
Meridian48 take
The playbook is a useful methodological warning, but it also lets OpenAI shape how third parties evaluate its models—a move that could limit independent scrutiny.
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OpenAI’s Evaluation Playbook Puts Harness Design at the Center of Model Testing →
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