Will OpenAI's GPT-5.6 be publicly available by July 31, 2026?

Why: The supplied, dated sources corroborate that OpenAI publicly launched and made the GPT-5.6 family available in July 2026. OpenAI’s official GPT‑5.6 announcement page is dated 2026-07-09 and states the GPT‑5.6 family is being launched for general availability; GitHub’s changelog (2026-07-09) shows GPT‑5.6 models are available in GitHub Copilot; independent news outlets (CNBC, NextGov, InfoWorld) and OpenAI’s July 30 blog post about GPT‑5.6 pricing confirm continued public availability through July 30. These independent, dated reports establish that by 2026-07-31 OpenAI had publicly released and made available a model named “GPT-5.6.”