AI-Authorship Percentage Escalation

Description

Timeline of escalating PR claims about AI-authorship of Claude Code: March 2025 Amodei '3-6 months from 90%'; May 2025 Cherny '80-90%'; Sep 2025 Amodei '70, 80, 90%'; Oct 2025 Amodei '90%... not uniformly'; Dec 2025 Cherny '100% of my contributions'; March 7 2026 Cherny 'Claude Code is 100% written by Claude Code'; March 31 2026 source leaked. LessWrong analysis noted no metric was ever defined — lines? effort? characters? The ambiguity was structural.

Key claims

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Sources

src-20260419-be936b1b7d4c