Claude has become central to how Anthropic builds its software, with the AI model now writing nearly 100% of the company’s internal code. This marks a major shift in how development happens at the AI firm, where human written code is quickly becoming the exception rather than the norm.
The update was shared by Anthropic’s Chief Product Officer, Mike Krieger during a recent AI Summit hosted by a technology company. He said the company has gone well beyond its earlier target of 90% AI generated code. “Claude is being written by Claude. Claude products and Claude code are being entirely written by Claude,” Krieger said during a conversation with Cisco President, Jeetu Patel. Last year, Anthropic CEO, Dario Amodei had already suggested that AI could handle about 90% of the company’s coding work, a figure that has now nearly been reached in practice.
Krieger explained that AI is now producing large scale contributions, including “2 to 3,000-line pull requests,” especially within Anthropic’s fast moving labs team. He said the company has built strong internal systems to ensure reliability and confidence in the output, adding, “what we’ve done is created all the right scaffolds around it to let us trust it.” Over the past few months, Anthropic has sharply increased its internal use of Claude across teams.
Claude’s growing influence is also visible outside the company. The tool has gained strong traction among developers, with Zoho co-founder and CEO, Sridhar Vembu calling it the best coding AI tool in the world. With the Opus 4.6 update, Claude has shown it can build complex C compilers, a task many experienced programmers find challenging. Its no code focused product Claude Cowork is also drawing attention, putting large SaaS firms such as Infosys and TCS under pressure.
As AI takes over nearly all coding tasks, questions around human roles are growing. Krieger said humans remain responsible for oversight and verification, ensuring final code quality. Still, concerns around jobs persist. Amodei has warned that AI could eliminate 50% of white collar jobs by 2030. Industry figures like NodeJS creator Ryan Dahl have echoed similar fears, while Vembu has urged engineers to explore alternate careers. Reacting to Amodei’s comments at the World Economic Forum 2026 in Davos, where he said “software engineering will be completely obsolete in 6-12 months,” Vembu said, “We better pay attention to him because he has the best coding tool in the world.”
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