Anthropic says Claude writes 80% of merged code, straining CI
Tests grew 10x and CI jobs 25x in six months, forcing a three-week rebuild of Anthropic's test-selection system.
By Ryan Merket · Published
Primary source: X - Addy Osmani
Why it matters
Anthropic's self-reported gains expose the next cost of AI coding: code arrives faster, while testing, review and deployment systems must absorb machine-scale volume.
Anthropic says Claude now authors about 80% of the code merged into its repositories, while its engineers ship eight times as much code per quarter as they did during the 2021-to-2025 period. The output has shifted the engineering constraint downstream: Anthropic's test count grew 10x and its continuous-integration job volume climbed 25x in six months.…
When you purchase through links in our articles, we may earn a small commission. This doesn’t affect our editorial independence.