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GPT for Work - 2025 October updates

🎉 The headline feature for October 2025 is the Agent's availability for all GPT for Excel users, enabling bulk spreadsheet operations through a simple chat interface! This month, we're excited to showcase how to create and apply formulas using plain language with the Agent. This is a preview of the Agent in GPT for Sheets, currently being rolled out... Soon in your spreadsheets!

We've introduced centralized model management, added support for new AI models, and enabled Azure OpenAI integration at team level.

Explore the key improvements and announcements below, and check out the release notes for the full details.

📐 Agent: Create and apply formulas using plain language

Learn how to create and apply formulas in Google Sheets or Microsoft Excel using plain language with the GPT for Work add-ons. No more complex formula syntax! Just describe what you need, and let the Agent build and apply the formulas for you.

Video preview

🎛️ Centralized model management Sheets Docs Excel Word

The GPT for Work dashboard now includes a dedicated Models page, where you can manage which models appear in the add-ons and in what order. You can also:

  • Set whether new models are enabled by default
  • Define a default model that the Agent uses to perform bulk operations and to generate lists (also the model new users see preselected)
  • Set a web search model for the Agent and the GPT_WEB function
Models page in the GPT for Work dashboard

☁️ Azure OpenAI integration at team level Excel Word

You can now set up Azure OpenAI endpoints at the team level from the GPT for Work dashboard. This gives you flexible deployment options for enterprise environments, allowing admins to configure Azure OpenAI integration once for an entire space.

Azure OpenAI integration in GPT for Excel

🤖 New AI models in October 2025

  • OpenAI GPT-5 Search API Sheets Excel (with or without API key)
    OpenAI's web search model for fast and reliable web search queries directly in your spreadsheets.
  • Anthropic Claude Sonnet 4.5 Sheets Excel Word Docs (with or without API key)
    The latest from Anthropic, now available across all GPT for Work add-ons.
  • Anthropic Claude Opus 4.1 Word Docs (with or without API key)
    Opus 4.1 has replaced Opus 4 in GPT for Word and GPT for Docs.

✨ Feature improvements

API keys and endpoints pages Excel Word

API keys and API endpoints now have their own dedicated pages in GPT for Excel and GPT for Word, with separate tabs for your keys and space keys, and for your endpoints and space endpoints. Access these from the Home menu by selecting API keys or API endpoints.

API key validation Excel Word Sheets Docs

Dashboard users can now check the validity of their API keys, either all at once or one by one, making key management easier and more reliable.

🔄 Model deprecations

  • o1-mini is no longer supported following its deprecation by OpenAI. Use o4-mini instead.
  • Claude 3 Opus and Claude Opus 4 are no longer supported following their deprecation by Anthropic. Use Claude Opus 4.1 instead.
  • Sonnet 3.5 is no longer supported. Use Sonnet 4.5 instead.

📖 To go further

Check out our resources to get the most out of GPT for Work: