GitHub Copilot Fusion picks models automatically; local preview runs only partly on-device

Nov 2, 2026 · Issue 14 · 4 sources, 4 articles

GitHub Copilot Fusion is built on automatically switching between several AI models. According to a DEV post, in its local model preview only one of the three stages runs on the user's own machine.

Who is affected and how

senior developer

Do not assume your code stays entirely local, because other stages of the process do not run on your machine.

Sources

• Copilot Fusion's Local Model Preview: Only One of Three Stages Runs on Your Machine - DEV Communitydev.to · Nov 2, 2026
• GitHub Copilot Fusion goes GA: AI picks the model for youkakeiai.jp · Nov 2, 2026
• AIモデルを選ぶ時代が終わる!? GitHub「Copilot Fusion」正式登場、複数AIを自動で使い分ける新技術がすごい｜ITな人note.com · Nov 2, 2026
• GitHub Copilot Fusion vs Claude Code: How AI Model Orchestration Changes Codinganalytics insight · Nov 3, 2026

Machine-generated summary based on the titles and excerpts of the source articles. The facts come from the linked article.