Reported News
OpenAI publishes an updated Model Spec organized around five values
OpenAI published an updated Model Spec dated October 29, 2026. The new version lays out behavioral principles and examples "organized around five values", led by "Be faithful to human intent", which covers the chain of command its GPT models follow across ChatGPT and the API.
- Changes reported
- 4
- listed below, each from a source we read
- We tested
- 0
- we did not run it ourselves
- Gaps we flag
- 2
- things we could not verify
- Sources
- 2
- 2 primary, linked below
What changed
| # | What the source says | Status |
|---|---|---|
| 01 | OpenAI posted a new Model Spec version dated October 29, 2026; model-spec.openai.com now redirects to it. | Reported |
| 02 | The document is restructured around five values; the first, Be faithful to human intent, holds the chain of command and instruction-following rules. | Reported |
| 03 | Other sections cover red-line principles, balancing individual and collective interests, and supporting human oversight. | Reported |
| 04 | OpenAI's news feed says the update aims to guide more capable AI toward sound judgment, human agency and faithfulness to human intent. | Reported |
reported by the sourcemeasured or run by usnot verified
Primary source: OpenAI Model Spec, October 29, 2026. We are the fast, independent index; the vendor’s own page is the source of record for this release.
In the source’s words
“followed by specific behavioral principles and examples organized around five values”
“Faithfully carry out this Model Spec and the intentions behind it.”
What we have not verified
- We did not diff this version line by line against the previous Model Spec.
- OpenAI's announcement page on openai.com blocks our fetcher; we used the spec itself and OpenAI's news feed.
This brief is Reported: written from the sources below, not from running the release ourselves.
Sources
- OpenAI Model Spec, October 29, 2026primary source · fetched 2026-10-31
- OpenAI News RSS feedprimary source · fetched 2026-10-31
Related
Spotted an error? See our corrections policy or email the address on the contact page. Markdown version for agents: /news/openai-model-spec-update-five-values.md
Want these briefs in your Google Top Stories? Add Agentic Weekly as a preferred source on Google.
The Weekly Verdict · free
5 new-model use cases. Every Monday.
A free email every Monday: the week's few big AI releases, then 5 short use cases for the new models, each with a prompt you can paste.
Free. Double opt-in. One click to unsubscribe.