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.

Excel table formulas shift from cell positions to named columns with #All-style tags, keeping calculations readable when layouts change.

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

Arguably the biggest new feature of GPT-5.4 is that users will be able to interrupt the model mid-respose if it starts going ...

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

Apple is taking a rare approach with the marketing material for its new MacBook Neo, signaling that winning over Windows users is more important for the company than keeping its walled garden ...

A benchmark called OSWorld-Verified, designed to monitor AI's ability to navigate desktop environments, found that GPT 5.4 ...

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