The big headlines on this release are efficiency, with OpenAI reporting that GPT-5.4 uses far fewer tokens (47% fewer on some tasks) than its predecessors).

Excel automations cover auto-updating charts, deadline flags, and smart links; Ctrl+T table charts expand as new rows appear.

OpenAI has introduced GPT-5.4, the latest upgrade powering ChatGPT with a new “Thinking Mode,” better reasoning, and integrations with Microsoft Excel and Google Sheets. The update aims to improve ...

ChatGPT is now using its 5.4 Thinking model for deeper reasoning, and it's even better at handling "professional work." ...

OpenAI released GPT-5.4 in ChatGPT (as GPT-5.4 Thinking), the API, and Codex, calling it its most capable and efficient ...

OpenAI's GPT-5.4 debuts with financial tools, FactSet integration, Excel support, and investment analysis features for ChatGPT Plus, Team, and Pro users.

OpenAI has released GPT-5.4, an AI model that it says is its most advanced and thoughtful AI yet. In a press release, OpenAI ...

OpenAI's new GPT-5.4 clobbers humans on pro-level work in tests - by 83% ...

Businesses have to change, and change is dramatic. AI adoption is critical for SMEs success and consultative approach ...

The ChatGPT Thinking version features a new interaction style, where the model first displays an upfront plan of its reasoning process.