OpenAI Unveils GPT-5.6 with Microsoft Copilot Integration

모델 출시 | Sat Jul 11 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 2 sources

OpenAI released GPT-5.6 and designated it as the preferred model for Microsoft 365 Copilot, while Sol Ultra published a mathematical proof.

Analysis

[OpenAI] officially released GPT-5.6 ^[1]

• Launched on July 9
• 2026
• Designated as the preferred model for Microsoft 365 Copilot
• Supports productivity apps including Word
• Excel
• PowerPoint
• and Cowork

[OpenAI-Microsoft Partnership] addressed breakup rumors and reaffirmed collaboration ^[1]

• Response following Bloomberg's report on Microsoft replacing models with its in-house MAI
• OpenAI reaffirmed continued support for Microsoft apps
• Emphasized 'preferred model' status

[GPT-5.6 Sol Ultra] published proof document for the Cycle Double Cover Conjecture ^[2]

• OpenAI posted the proof as a PDF
• Document hosted on cdn.openai.com

Sources

• [1] OpenAI says GPT 5.6 is the ‘preferred model’ for Microsoft Copilot 365 amid breakup chatter - TechCrunch AI
• [2] GPT-5.6 Sol Ultra produces proof of the Cycle Double Cover Conjecture [pdf] - Hacker News