Melissa Pan compared Claude Code, Codex, and Pi and reports that the system around an AI model, the harness, affects cost more than accuracy. She cites three findings; only this one is stated in the announcement.
Codex app 26.924 is available, with CVE-2026-100754 patched on macOS in hardened build 26.924.20706. Credit is given to Patrick Wardle of Objective-See.
OpenAI Developers says a bug that degraded image understanding in GPT-6 Sol and GPT-6 Luna has been fixed, and visual tasks in the API and Codex, including computer use, should now return better results.
OpenAI Developers said Codex had an outage and that the issue is now resolved, with the service restored.
Nimble says the plugin is available in the Plugins tab and lets ChatGPT and Codex combine web search with computer use, adjust retrieval after each run, and attach source controls, confidence scores, and evidence.
The September 22, 2026 rollout covers Plus, Pro, Business, Enterprise, and Edu users.
GPT-6 Sol and GPT-6 Luna are available in the API and are rolling out in Codex and ChatGPT Work for Plus, Pro, Business, and Enterprise users.
On September 22, 2026, Plus, Pro, Business, Enterprise, and Edu users get both models in ChatGPT Work and Codex, and both are available in the API. Free and Go users can try GPT-6 Luna in the desktop app.
Entering one of the listed model IDs in Codex starts a query. The IDs cover named GLM, Kimi, DeepSeek, and GPT variants, with request details in B.AI’s LLM service API documentation.
Developers can use the GLM and Kimi series in the Codex client with a B.AI API key and Base URL. The API already supported GPT and DeepSeek, so it now covers four model series.
After configuring a B.AI API Key and Base URL, developers can call the GLM and Kimi model series directly in the Codex client. The API previously supported GPT and DeepSeek and now covers these four model series.
