OpenAI unveiled GPT-5.4, its newest reasoning model, alongside a ChatGPT-powered add-in for Microsoft Excel. The tool lets users build and modify spreadsheet models using natural language inside ...

OpenAI has rolled out ChatGPT for Excel in beta alongside the GPT‑5.4 model, enabling spreadsheet users to build, update, and analyze models directly in their workbooks. The release also adds ...

Both GPT-5.4 models are optimised for “sub-agent workflows,” where multiple AI systems collaborate—larger models handle complex reasoning while smaller ones execute specific tasks. Amid the recent ...

Spreadsheet software continues to function as a central tool for managing large volumes of business data across industries. Data entry, formula management, and manual analysis frequently form part of ...

Microsoft is now offering a free version of Copilot Chat in its Core Office apps, which include Word, Excel, PowerPoint, Outlook, and OneNote, to Microsoft 365 business subscribers. The new sidebar ...

OpenAI announced the official launch of the ChatGPT add-in for Microsoft Excel and Google Sheets spreadsheet models, making it available to all users globally after the end of the beta version. The ...

If you've been using AI tools for years, the May 2026 updates feel less like incremental tweaks and more like a platform reset. OpenAI has made GPT-5.5 Instant the new default, leveraging your chat ...