Copilot Fusion: model routing and critique patterns explained
Source
docs.github.com
Author
GitHubTop Viber
Date
Why it matters
Copilot Fusion routes each prompt between single-model, cascade and critique patterns, so costs vary by effort tier. GitHub claims near Claude Code quality at about half the cost, in a vendor-funded evalA repeatable test for AI quality — a set of tasks plus scoring — used the way software teams use test suites, because model output is too variable to judge by eyeballing.Full definition →.
Terms in this piece · Glossary
eval — A repeatable test for AI quality — a set of tasks plus scoring — used the way software teams use test suites, because model output is too variable to judge by eyeballing.