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Microsoft Copilot Blog
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Available today: OpenAI's GPT-6.1 Sol and Claude Sonnet 5.5 in Microsoft Copilot

Xia_Song's avatar
Xia_Song
Icon for Microsoft rankMicrosoft
Sep 30, 2026
Earlier this month, Anthropic's Claude Opus 5.5 and OpenAI's GPT-6 Sol joined model choice in Microsoft Copilot. Now, we're continuing to expand that choice by bringing GPT-6.1 Sol and Claude Sonnet ...
Updated Sep 30, 2026
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Langfordc's avatar
Langfordc
Copper Contributor
Oct 15, 2026

What is Microsoft doing with the limitations around context window within co-pilot ? As using these LLM's directly allows you to use the full context window instead of been limited to 100K in Co-Pilot ?