GitHub Copilot Fusion, which routes models automatically, is now generally available

GitHub made Copilot Fusion generally available, a system that routes and orchestrates several models for each task, with three effort levels.

By GennnAi·October 28, 2026·1 min read

GitHub Copilot Fusion Microsoft Claude Code Anthropic Opus 5.5 Artificial Analysis AT&T GitHub Copilot Outils Modèles Flash

The levels are Standard, High and Max. According to GitHub, on the Artificial Analysis Coding Agent Index, Fusion Max scored 60, within two points of Claude Code with Opus 5.5 Max, at about half the average cost per task. Administrators control which models it can use. Users are billed at each model's rate, with a temporary 30% discount on paid plans. It runs in VS Code, Copilot CLI and JetBrains.

Source: GitHub, published on October 28, 2026.