GitHub Copilot Fusion goes GA, routing each task across models at Standard, High or Max effort
Announced at Universe on Oct 28, Fusion replaces Auto in the model picker and decides per prompt whether one model answers, a cheap model drafts and escalates, or one model critiques another; Fusion Max scored within two points of Claude Code on Opus 5.5 Max on Artificial Analysis's coding index at about half the cost per task. It's on all plans in VS Code, the Copilot app, CLI and JetBrains, billed per model used, with 30% off for a limited time.
