OpenAI’s July announcement describes the GPT-5.6 family and its product rollout. Availability, plan access and product behavior can change during staged releases, so the announcement should be read with the release notes rather than as a permanent compatibility matrix.
For comparison coverage, this is a closed-model reference point rather than an open-model entry. The site should be explicit about that difference instead of treating all model releases as interchangeable.
The best update path is to retain the official release and release-notes URLs in the article record, then revise the page when availability materially changes.