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Developing story · 2 episodes · 28 Oct to 7 Nov

GitHub Copilot Fusion to Microsoft

The series follows the development of AI-assisted coding tools, starting with GitHub's launch of Copilot Fusion for easier model selection and culminating in Microsoft's rebranding and expansion of the technology across its product suite. After the latest rename, the Copilot harness is now integrated throughout Microsoft offerings, signaling broader adoption.

  1. Agents & Toolsnew

    Microsoft renames GitHub Copilot harness to Microsoft Copilot harness, expands it across products

    On October 28, 2026, Microsoft announced it is renaming the GitHub Copilot harness to the Microsoft Copilot harness and expanding it as a common foundation for its Copilot product family, including…

    1 source
  2. Marketing & Small Businessnew

    GitHub debuts Copilot Fusion for streamlined model selection

    GitHub has unveiled Copilot Fusion, a new system designed to handle model selection and orchestration for coding tasks. This advancement allows developers to delegate decisions about which models to…

    2 sources
Who and what
GitHubMicrosoftOpenAIAnthropicClaude CodeOpus 5.5 Max
hot PSI proves Aaronson-Ambainis conjecture using Anthropic’s non-public model new Meta improves Muse and Meta AI with Active Memory and Active Focus hot Anthropic IPO valuation expectations fall as AI stocks sell off new OpenAI launches GPT-Live outbound phone calls API at $0.05 per minute hot OpenAI CFO Sarah Friar says data center investment will continue despite election results new NVIDIA releases open-source auto ontology to link databases to AI agents hot Thinking Machines Lab is raising $5B led by Accel at a $40B valuation, sources say new Microsoft renames GitHub Copilot harness to Microsoft Copilot harness, expands it across products