Anthropic · Claude · Claude Code · Decrypt
AI Is Already Developing AI, Confirms Anthropic—And Humans May Be Slowing Things Down
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AI has become so effective at writing code and researching that the biggest constraint on developing new AI systems may now be the humans overseeing them, according to a new study by Anthropic.
Key facts
- Claude now authors more than 80% of the code merged into its codebase, Anthropic said, and has helped engineers increase code output roughly eightfold since 2024
- In May, Google announced Gemini Spark, a personal AI agent that doesn't wait to be asked
- Before Claude Code launched in research preview in February 2025, this number was in the low single digits,” Anthropic wrote, adding that the shift also shows up in the amount of output per engineer
- Anthropic said the future could unfold in several ways: AI progress could slow, humans could remain in charge while AI automates much of the work, or AI systems could eventually begin improving
Summary
Anthropic says Claude now authors more than 80% of the code merged into the company's codebase. The AI startup says engineers are shipping roughly eight times more code than they did in 2024. Anthropic argues AI is already helping build future AI systems and could eventually contribute to designing its own successors. In its report “When AI Builds Itself,” published Thursday, Anthropic argued that Claude is already helping build future AI systems by writing code, running experiments, and assisting with research—a trend the company says could eventually lead to recursive self-improvement, where AI systems help design their own successors.