Anthropic says Claude 'leads' 26% of research work but definition and scoring are fuzzy
Anthropic published internal metrics saying Claude accounts for 26% of model-development work at AL4 (labelled "AI leads") as of August 2026, with over 90% at least AL3; the company computed levels using agents that collected internal logs and a Claude model that assigned scores. Anthropic also reported monitoring figures (about 30,000 concurrent agents, a real-time monitor blocking 0.002% of >1B actions in August) and that ~6% of research compute went to safety work, while acknowledging ambiguity in level boundaries and limits of self-scoring.