---
title: Copilot Fusion is GA: pick an effort level, not a model
type: Release
---

Copilot Fusion is GA: pick an effort level, not a model

The point

GitHub Copilot Fusion is generally available. Instead of picking a model for each task, you select Copilot Fusion and an effort level, and it routes and orchestrates models for you using three patterns: Single (one model), Cascade (a cheap model drafts, a check escalates if needed), and Critique (one model drafts, another reviews).

Original ~4 min → 25 sec here

Why it matters

Model-picking per task goes away. Cost control moves to the effort level you choose and the model policies your admins set.

Key details

Source: GitHub Changelog, Oct 28, 2026

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