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Users may not see options to select GPT models in Microsoft 365 Copilot

Microsoft Copilot (Microsoft 365) CP1515501

Users may not see options to select GPT models in Copilot.

Status
Service degradation
Feature
General
Region
Not specified (all regions)
Started
Oct 19, 2026, 19:45 CEST
Duration
1 h 58 min
Last update
Oct 19, 2026, 20:53 CEST
Next update
Oct 20, 2026, 00:30 CEST

Current status

We're proceeding with our process to revert the change. Based on our current estimations, we anticipate this will be completed by our next scheduled communication update, remediating impact for all users.

Scope of impact

This issue may affect any user attempting to utilize GPT models in Copilot.

Root cause

A recent change, which was intended to filter out model groups based on policy ID, introduced a configuration issue that’s resulting in impact.

Timeline

Every update Microsoft posted for this issue, newest first.

  1. Oct 19, 2026, 20:53 CEST

    We're proceeding with our process to revert the change. Based on our current estimations, we anticipate this will be completed by our next scheduled communication update, remediating impact for all users.

  2. Oct 19, 2026, 20:04 CEST

    We’ve identified a recent change, which intended to filter out model groups based on policy ID, introduced a configuration issue that’s resulting in impact. We’re reviewing options to revert this change to restore access to these impacted models and remediate impact for all users.

  3. Oct 19, 2026, 19:50 CEST

    We're investigating a potential issue with Microsoft Copilot 365 and checking for impact to your organization. We'll provide an update within 30 minutes.

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Source: Microsoft Graph, Service Communications API. This is the view of a Swiss Microsoft 365 tenant: services not licensed there are missing, and individual issues may affect your tenant differently. Microsoft names the region only in the issue text. The Switzerland view shows issues for Switzerland, for Europe in general and those without a region, but not issues that only name other countries such as Germany or the UK. This page is not provided by Microsoft.