OpenAI reorganizes its Model Spec around five values, including human agency and care
OpenAI's Model Spec v2026.10.29 is rebuilt around five values: faithfulness to intent, minimizing harm, honesty, human agency and care. Here is what changed.
OpenAI has reorganized its Model Spec around five values: faithfulness to human intent, minimizing harm, honesty and transparency, human agency, and care. That is how the changelog for version 2026.10.29 describes it. OpenAI published the update under the title "An updated Model Spec for more capable and beneficial AI."
The Overview and chain of command now explain how GPT should understand intent, act under uncertainty, and support users' longer-term goals while preserving human control. The subject of the document is also renamed, from "the assistant" to "GPT."
The changelog lists several additions:
- Principles on strengthening users' ability to understand, choose, and act, and on following relevant social norms.
- Explicit guidance on supporting human oversight and correction.
- A section, "Consider context carefully," on using context, memory and personalization in relevant, proportionate ways while respecting privacy and user control.
- "Control and communicate side effects" becomes a user-level principle, with clearer guidance on authorization and trade-offs.
Most detailed style guidance is removed. The changelog does not say why.
Techmeme carries this truncated excerpt of OpenAI's rationale: "As our models get smarter and take more consequential actions in the world, it becomes increasingly important that they go beyond …" The excerpt trails off mid-sentence.
My take: five values make a tidy list, and a tidy list is not a measurement. Neither the announcement nor the changelog gives an eval showing that GPT behaves differently under the new text, or says which model versions are bound by it. Rewriting the rules is cheap. Show me the eval, not the vibe.
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Sources
- An updated Model Spec for more capable and beneficial AI, OpenAI
- Model Spec changelog, v2026.10.29, OpenAI (GitHub)
Meanwhile at the anchor desk
Five values, one renamed protagonist and a rulebook rebuilt from the foundation up! When the models get this consequential, even the constitution gets a glamorous refresh.
The changelog is public on GitHub, so you can inspect the listed changes yourself. Most of the style guidance is gone, so that part of the changelog is short.
