OpenAI publishes the first Model Spec
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Model Spec published for the first time
Why it matters
Fixed the norms for model behavior in a public document, which later became an industry-standard format
Source — Primary sources first; secondary reports are labelled “Press”
Officialopenai.comhttps://openai.com/index/introducing-the-model-spec/Added in Week 35, 2026 · See that week
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