User swaps Copilot 365 sessions to Claude Opus 5.5 and stuck sessions vanish
koltregaskes · x · 2026-10-20
An enterprise user with new AI admin access to Microsoft 365 Copilot admin centers enabled Claude models and switched all active sessions from GPT 6.1 Sol to Claude Opus 5.5.
Within hours, they report the recurring pain points disappeared: sessions getting stuck, red errors breaking sessions, running multiple sessions causing others to stop, and slow task execution. "Opus 5.5 has dramatically improved my experience with Copilot in my job in a matter of a few hours."
An anecdotal report rather than a benchmark, but it suggests notable stability differences between underlying models inside the same Copilot harness.
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