Microsoft’s AI strategy has, for the most part, been about using third-party large language models (LLMs). First this was mostly about using OpenAI’s GPT models, but more recently, this also included Anthropic’s Claude — and now Microsoft is using both of them in tandem to improve Copilot’s Researcher agent.
The Researcher agent, which Microsoft recommends for problems where deeper reasoning or problem solving across multiple sources is necessary, now includes an optional ‘critique’ feature. With this, GPT will write the…

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