GPT-5.6 Preview System Card
deploymentsafety.openai.com · 7,913 words · saved by 1 readers
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OpenAI GPT-5.6 Preview System Card 2026-06-25 Change log • August 19, 2026: We corrected GPT-5.5’s pass@4 score on the hard-negative protein binding prediction evaluation from 0.4% to 1.5%. The previously reported value was its pass@1 score. 1 Introduction GPT-5.6 is a new family of three models: Sol, our new flagship model; Terra, a capable lower-cost option; and Luna, our fastest and most cost-efficient model. The safeguards we have built for this launch—our most robust yet— are built to deliver these models safely and at scale,…
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