Copilot Fusion
A multi-model orchestration system released by GitHub that automatically routes among multiple models according to reasoning, debugging and tool-calling requirements in order to balance quality and cost.
Timeline (last 90 days)
GitHub launched Copilot Fusion in Copilot, which can select and coordinate Anthropic and OpenAI models to optimize performance and cost.
GitHub Universe released Copilot Fusion, which it officially says reaches frontier-model quality, is 40% faster and costs up to 77% less.
Copilot Fusion's score on the coding agent index approaches Opus 5.5 Max, while cutting cost in half and reducing task time by 40%.
Microsoft announced the Copilot Fusion model at the GitHub Universe conference, with a 40% speed improvement, cost reductions of up to 77%, and a per-task API invocation cost only half that of the Copilot plus Opus 5.5 combination.
All Facts (4)
Copilot Fusion's score on the coding agent index approaches Opus 5.5 Max, while cutting cost in half and reducing task time by 40%.
60%UnverifiedGitHub launched Copilot Fusion in Copilot, which can select and coordinate Anthropic and OpenAI models to optimize performance and cost.
50%UnverifiedGitHub Universe released Copilot Fusion, which it officially says reaches frontier-model quality, is 40% faster and costs up to 77% less.
50%UnverifiedMicrosoft announced the Copilot Fusion model at the GitHub Universe conference, with a 40% speed improvement, cost reductions of up to 77%, and a per-task API invocation cost only half that of the Copilot plus Opus 5.5 combination.
50%