Context Window of 1M not showing in Codex Windows app
Open 💬 1 comment Opened Jul 12, 2026 by Exa747
What version of the Codex App are you using (From “About Codex” dialog)?
26.707.31428
What subscription do you have?
Pro x5
What platform is your computer?
Microsoft Windows NT 10.0.26200.0 x64
What issue are you seeing?
GPT‑5.6 Sol Max in Codex desktop reports a 353k effective context window, while the GPT‑5.6 Sol API documentation lists 1.05M. Microsoft Store confirms the latest app version is installed, and a new task also shows 353k as the model's context window.
What steps can reproduce the bug?
Feedback ID: 019f53df-88bb-76c0-b2c0-a228f5391474
What is the expected behavior?
_No response_
Additional information
_No response_
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