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Microsoft’s Copilot Cowork Arrives with Smarter AI Research Tools to Spot Gaps in Your Work

Microsoft introduced Copilot Cowork in early access and enhanced Researcher with AI features that improved research accuracy by 13.8%, aiding complex task management and decision-making.

  • On Monday, Microsoft introduced "Critique" and "Council" features to its Copilot Researcher agent, enabling simultaneous use of OpenAI's GPT and Anthropic's Claude models while expanding early access to Copilot Cowork through its Frontier program.
  • Microsoft's AI strategy increasingly relies on integrating third-party large language models, having unveiled Copilot Cowork earlier this month to handle complex, multi-step workflows while allowing enterprise customers to maintain data security.
  • The Critique feature improved Researcher tool's score by 13.8% on the DRACO benchmark, achieving 57.4; GPT generates drafts while Claude reviews them for "accuracy, completeness, and citation integrity," Microsoft noted.
  • Nicole Herskowitz, corporate vice president of Microsoft 365 and Copilot, said "we're taking this to the next level, where customers actually get the benefits of the models working together," as the approach reduces AI hallucinations and accelerates workflows.
  • Microsoft expects to make the Critique workflow bi-directional, eventually allowing GPT to review Claude's drafts; meanwhile, the company's shares rose about 1% on Monday despite a nearly 25% stock decline for the quarter.
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With the new “Critique” resource, the Copilot's Researcher agent can extract results from the GPT models, OpenAI, and Claude, of Anthropic, for each response, instead of relying on a single model

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Just a few weeks ago, Microsoft introduced Copilot Cowork, which is based on Claude Cowork of Anthropic. However, today it finally premieres early access from its Frontier program for users, and most striking of all is that different improvements have been made. Among them, for its Researcher tool and a new feature known under the name Critique is added. Although the novelty is also that the advance access of Copilot Cowork, the AI tool within M…

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The New Stack broke the news in on Monday, March 30, 2026.
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