
GitHub released Copilot Fusion at its GitHub Universe event, a system designed to coordinate and route requests across different AI models for developers.
The company stated that Fusion Max matched Claude Code powered by Opus 5.5 Max on coding agent indexes while operating at half the API token cost.
Microsoft CEO Satya Nadella noted that the new system delivers frontier-level code quality 40 percent faster and at up to 77 percent lower cost.