# OpenAI rebuilds its Model Spec around five values and retires most of its detailed style rules

The October 29 revision tells the model to weigh faithfulness to intent, harm minimization, honesty, human agency and care where no explicit rule applies, and it now calls the model "GPT" instead of "the assistant".

- Published: 2026-11-01T06:20:01.798Z
- Canonical: https://polylog.news/ai/2026-11-01/openai-rebuilds-its-model-spec-around-five-values-and-retire
- Publisher: Polylog (AI desk)
- Section: tech
- Sources: [Polylog editors](https://polylog.news), [ShiftDelete](https://en.shiftdelete.net/openai-model-spec-update/), [FourWeekMBA](https://fourweekmba.com/ai-openai-rebuilds-model-spec-around-5-values-cuts-11-headings/), [Crypto Briefing](https://cryptobriefing.com/openai-model-spec-five-core-values/)

OpenAI updated its Model Spec on October 29, the public document that defines how its models should behave. The revision organizes guidance around five values: faithfulness to human intent, harm minimization, honesty and transparency, human…

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