Inside Anthropic Labs
In late 2024, Boris Cherny — newly arrived at Anthropic from Meta — received an instruction from his manager, Ben Mann. Mann is an Anthropic co-founder, helped architect GPT-3 at OpenAI, and ran the company’s product engineering function at the time.
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In late 2024, Boris Cherny — newly arrived at Anthropic from Meta — received an instruction from his manager, Ben Mann. Mann is an Anthropic co-founder, helped architect GPT-3 at OpenAI, and ran the company’s product engineering function at the time. The instruction is the single most compact description of frontier AI product development now in circulation:
Don’t build for today's model. Build the model in six months.
Cherny followed it. He built Claude Code against a frontier that did not yet exist. For the first six months, the tool was barely usable — he used it for maybe 10% of his own code.
Then Opus 4 shipped in May 2025, and the curve inflected with every release thereafter. By late 2025, he had stopped writing code by hand entirely. By early 2026, he was producing up to 150 pull requests per day on his phone.
The five-person Labs team that produced this also produced MCP, Skills, and the Claude desktop app — then disbanded. In January 2026, Anthropic spun it back up, this time as a permanent function.
The Chief Product Officer — Mike Krieger, Instagram co-founder, two years at the company — gave up his executive title, became a Member of Technical Staff, and moved into Labs to build alongside Mann. They report directly to Daniela Amodei, the President.
The structure they built around the doctrine is what the rest of this analysis is about.