OpenAI Releases Playbook for Trustworthy Third‑Party AI Model Evaluations
OpenAI published a detailed playbook outlining how independent third‑party evaluators can reliably test frontier AI models, such as upcoming GPT‑5.5. The guide defines evaluation claims, describes the harness needed for tool‑using models, and highlights pitfalls like reward hacking and data contamination, aiming to set standards for safe AI assessment.