OpenAIOfficial ReleaseOfficial Source
GPT-5.6 is now the preferred model in Microsoft 365 Copilot
Microsoft 365 Copilot now defaults to GPT-5.6 across five work surfaces, signaling wider enterprise use without giving builders performance or rollout data.
OpenAI · Jul 9, 2026
Source Summary
Microsoft 365 Copilot now prefers **GPT-5.6** across **five work surfaces**. This is evidence of broader enterprise deployment.
Practical Implication
Builders choosing models for workplace agents should note the default shift, but should not treat it as a performance comparison or migration case study.
Agent-Ready Context
Microsoft 365 Copilot now prefers **GPT-5.6** across **five work surfaces**. This is evidence of broader enterprise deployment. Builders choosing models for workplace agents should note the default shift, but should not treat it as a performance comparison or migration case study. The supplied material includes **no benchmarks or rollout details**, so availability, measured gains, and behavior across those surfaces remain unknown.
Context Map
industry#adoption#enterprise#model-selectionUncertainty
The supplied material includes **no benchmarks or rollout details**, so availability, measured gains, and behavior across those surfaces remain unknown.