model-performance

Stella Laurenzo, director of AI at AMD, filed a GitHub issue documenting significant performance degradation in Claude Code since early March, specifically following the deployment of thinking content redaction in version 2.1.69. Analysis of 6,852 sessions with 234,760 tool calls shows stop-hook violations increased from zero to 10 per day, while code-reading behavior dropped from 6.6 reads to 2 reads per session.