Expired75% confidenceFactTime unknown
The Anthropic team revealed that 95% of internal engineers are using Claude Code, with only 5% still using Vim or other tools.
1
Sources
75%
Confidence
Medium-term (~90 days)
Relevance
6/1/2026
First Seen
Valid until: 8/30/2026(expired)
Sources
Related Entities
Related Claims
Unverified95% of Anthropic's engineers use Claude Code, with only a very small number still using Vim or Cursor.94% similarUnverified95% of engineers at Anthropic use Claude Code on a daily basis.80% similarUnverifiedMost developers are using only a fraction of Claude Code's true capabilities66% similarUnverifiedAfter adopting Claude Code, each Anthropic engineer's code output increased by approximately 250%, while maintaining stable code quality and reliability.61% similarUnverifiedIn a Y Combinator talk, approximately half of the founders stated that 100% of their code was written using Claude Code.61% similar
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