OpenAI Updates ChatGPT Business and Codex: New Features, Bug Fixes
OpenAI has launched new updates for ChatGPT Business and the Codex code model in July 2026, including improved desktop applications and bug fixes for the GPT-5.6 models.
What happened?
On 16 July 2026, OpenAI released updates for ChatGPT Business that simplify the user experience in the desktop applications for macOS and Windows. These updates facilitate switching between chat and workflows, as well as navigating conversations and projects. Simultaneously, the Codex code model (version 0.144.6) received a bug fix restoring the 272,000-token context window for GPT-5.6 Sol, Terra, and Luna, while addressing packaged instructions.
Key facts
Why it matters
The updates aim to streamline user interaction with OpenAI's services. Improvements to the ChatGPT Business desktop app optimise productivity for corporate clients through a seamless multi-device experience. The restoration of the context window for Codex ensures that developers can work with larger codebases and more complex instructions using advanced GPT-5.6 models without interruption.
Who is affected?
Users of ChatGPT Business on macOS and Windows are directly affected by the improved desktop apps. Developers and programmers using the Codex model alongside GPT-5.6 Sol, Terra, and Luna are impacted by the restoration of token windows, enhancing model capacity. Enterprises invested in OpenAI's business solutions benefit from increased efficiency.
What else you should know
The Codex update handles packaged instructions, which is critical for model functionality during complex programming tasks. Exact release dates for Codex are not specified in the source, but it was observed as recently as 18 July 2026.
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