Expired50% confidenceFactExact time
By May 2025, over 80% of the code in Anthropic's codebase was written by Claude, up from single digits just over a year ago.
1
Sources
50%
Confidence
Medium-term (~90 days)
Relevance
7/2/2026
First Seen
Valid until: 9/30/2026(expired)
Sources
AI Now Writes Over 80% of Code: What Doubling Capability Every 4 Months Really Means
bilibili小双2296/6/2026
Related Claims
UnverifiedIn a paper published by Anthropic in 2023, sparse autoencoders were used to find tens of thousands of interpretable features in Claude, including emotional states and programming language types.63% similarUnverifiedThe system prompt of Claude Code's latest version Fable 5 was leaked on the day of its release, with the prompt approaching 100,000 characters in length.63% similarVerifiedClaude Code is a command-line AI programming assistant launched by Anthropic, released in early 202561% similarVerifiedClaude Code is a command-line AI programming assistant launched by Anthropic in 2025.60% similarUnverifiedAround April 22, 2025, Anthropic removed the Claude Code feature from the $20-per-month Pro plan.60% similar
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