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How ASOS uses GitHub copilot

90%

“That peer-led rollout helped ASOS reach over 90% Copilot adoption across the engineering team within months.”

As published on github.com, July 2026. Captured by usedby on Oct 5, 2026.

What happened

ASOS migrated its repositories to GitHub and uses GitHub Copilot across its engineering team for navigating unfamiliar codebases, delegating development tasks to cloud agents, prototyping, and automated first-pass code reviews. It also built custom agents for tasks such as bug fixing and rolls out prompts across repositories.

Summary written by usedby from the source page, in English. The figures are those of GitHub copilot and ASOS, not ours.

  • nine days“With Copilot cloud agent, we delivered in nine days what we'd estimated at two months.”
  • 10 minutes“Tasks that once took an hour can now often be completed in 10 minutes of agent runtime.”
  • 56 hours“PR first approval times peaked at 56 hours, so the ASOS team enabled Copilot Code Review across every repository to take the first pass on code reviews.”

With the migration in place, ASOS focused on getting Copilot into the hands of every engineer. Newark used Copilot usage metrics to identify power users early, then turned them into champions who could show peers what was possible in their own codebases.

From the page. github.com, captured Oct 5, 2026

There's always 100 things that we want to build. With GitHub Copilot, we get to do more of them.

Chris Newark, Principal Software Engineer, ASOS. Source, captured Oct 5, 2026

What the story claims, and what we checked

We compared the story with its live page on Oct 5, 2026.

  • The figure: 90%CheckedPrinted word for word on the page, near the name of ASOS.
  • The passage quoted aboveCheckedCopied word for word from the page, near the name of ASOS.
  • The publication dateCheckedRead from the page’s own metadata, never guessed.
  • ASOS uses GitHub copilotCheckedConfirmed line. Latest check across sources: Oct 5, 2026.
  • The result itselfNot checkedWe quote it; we did not measure it.

Same company, same tool or same industry.

8,000 developers“over 8,000 developers began using GitHub Copilot across more than 55 languages”General Motors uses GitHub copilot. Another customer of GitHub copilot9-10 hours“engineers are getting 9-10 hours of extra output per week”AstraZeneca uses GitHub copilot. Another customer of GitHub copilot1,000 developers“Cathay rolled out GitHub Copilot to more than 1,000 developers in just one week”Cathay uses GitHub copilot. Another customer of GitHub copilot