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OpenAI's GPT-5.5 Thinking available in Copilot Chat

For anyone using Copilot Chat at work who needs to think through a multi-step problem — a project plan, a tricky negotiation email, a complex spreadsheet analysis — rather than get a quick one-line answer. Switch to this mode when the task needs the AI to weigh up several factors before answering; skip it for simple lookups.

Read the original source 1 min read

What changed

Copilot Chat gained access to GPT-5.5 Thinking, a model built for multistep reasoning and structured analysis, enabling deeper reasoning on complex problems.

Why it matters to your work

For anyone using Copilot Chat at work who needs to think through a multi-step problem — a project plan, a tricky negotiation email, a complex spreadsheet analysis — rather than get a quick one-line answer. Switch to this mode when the task needs the AI to weigh up several factors before answering; skip it for simple lookups.

What to try next

Next time you're working through a complex project plan or a tricky analysis in Copilot Chat, switch to GPT-5.5 Thinking mode rather than the quick-answer default.

Source & availability

This is a summary of a published provider announcement, with practical context from SCALA’s feed.

Plan, region, workspace and rollout conditions may affect access in Australia. Check the original source for current availability.

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