Claude now leads 26% of the work building Anthropic's next AI

Anthropic says Claude now leads 26% of its AI research and development work, a category in which the model can complete most of a task from a high-level prompt while a human supervises. The company reports that the figure was below one percent in February and that more than 90% of measured R&D work now involves at least AI collaboration. The Washington Post presents the jump as evidence of progress toward AI systems that help build their successors. Anthropic is more specific about the limit: no measured subset of AI R&D is fully autonomous, and recursive self-improvement would require a model to build its successor without a human in the loop. The index is a prototype. A model rated tasks using an outside automation scale, employees supplied an independent comparison, and exact model-human agreement reached 59%, though ratings were within one level 97% of the time. That makes the disclosure unusually concrete while leaving classification judgment and cross-laboratory comparability unresolved. The impact is already larger than a speculative intelligence explosion. AI-led research changes the production function of frontier development. It can multiply experiments, concentrate advantage inside laboratories with the best models and compute, reduce some research bottlenecks, and make release cycles harder for outside evaluators to match. The governance trigger should therefore be measurable AI control over the research process, not a dramatic declaration that self-improvement has arrived.