TechCrunch47%
OpenAI says GPT 5.6 is the 'preferred model' for Microsoft Copilot 365 amid breakup chatter 46%
By Lucas Ropek25%
7/10/2026, 12:16:54 AM
BS Summary: This article contains 20 faulty reasoning types, including Framing Effect, Negativity Bias, and Availability Heuristic, with Biased Writer Voice as the most egregious example at 20.6% saturation with 78 hits. Analysis detected 687 faulty-reasoning hits from 379 analyzed words, generating a BS Score of 48% and a BS Rank of 46% (11,917 of 21,887 articles). This article is better (less manipulative) than 54.40% of the article peer group.
5:16 PM PDT · July 9, 2026
Image Credits: Rafael Henrique/SOPA Images/LightRocket / Getty Images
OpenAI says GPT 5.6 is the ‘preferred model’ for Microsoft Copilot 365 amid breakup chatter
Earlier this week, Bloomberg reported that Microsoft was replacing some of OpenAI’s software with its own in-house models in an effort to cut costs.
Those in-house models, known as MAI, were increasingly being used to power apps like Word and Excel, the outlet noted.
The story raised an increasingly common question about the two companies, which were once seemingly inseparable, and have recently sent mixed signals about the status of their situationship: Were the two companies drifting apart?
Now, OpenAI is attempting to put any insinuations of such a break to rest.
During OpenAI’s launch of GPT 5.6 on Thursday, the company announced that it would become the “preferred model” powering Microsoft’s 365 Copilot.
OpenAI noted in a blog post published Thursday that GPT 5.6 would support Microsoft users across the company’s suite of productivity apps, including Word, Excel, PowerPoint, and Cowork.
“Our partnership with Microsoft has always been about bringing the benefits of advanced AI to more individuals and organizations, and we’re excited to continue building on that shared commitment,” OpenAI wrote in a blog post.
What being a “preferred model” actually means isn’t entirely clear, other than that OpenAI’s software will continue to power Microsoft’s apps.
That said, it was never reported that ChatGPT’s software would stop powering Microsoft’s apps — merely that Microsoft was relying increasingly on its own software in an effort to reduce costs.
The new “preferred model” disclosure doesn’t appear to negate that previous reporting.
AI , Copilot , gpt-5.6 , Microsoft , OpenAI
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Speakers
5speakers48%attributed speech196writer words
Voice mapSelect a segment to jump to its words
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100%flagged-word coverageElon
11 attributed words6.0% of attributed speech87% writer coverage
Attribution is sentence-level. Pattern percentages are calculated only from words assigned to that voice.
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Analysis
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