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

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

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

OpenAI has introduced GPT-5.4, the latest upgrade powering ChatGPT with a new “Thinking Mode,” better reasoning, and ...

OpenAI unveiled GPT-5.4, its newest reasoning model, alongside a ChatGPT-powered add-in for Microsoft Excel. The tool lets ...

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

Saving AI generated content and deadline information to matter containers in M365 empowers Copilot to deliver grounded, secure, matter-aware answers that legal professionals can trust. "By anchoring ...

OpenAI has launched GPT-5.4, a highly efficient AI model designed for professional tasks, boasting significant accuracy improvements and a new tool search feature.

OpenAI’s GPT-5.4 is here. It’s designed to be thoughtful and easier to steer in the right direction.

Microsoft is adding Anthropic’s Claude Cowork to Microsoft 365 Copilot, giving business users a new tool that can do actual office work instead of just answering questions. The new product is called ...

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

Copilot Cowork operates in the cloud, inside Microsoft 365's infrastructure, and draws on something Claude Cowork simply cannot access: the full graph of a user's enterprise work data.