Anthropic's First PM on How Claude Got Built
AI PM Research
Sunday, July 26, 2026
Anthropic's First PM on How Claude Got Built
Dianne Penn, Anthropic's first technical PM, lays out the actual decisions that made Claude — the coding pivot, the eval loop, what "token maxing" means for agentic systems — while LangChain makes the case that owning your AI infrastructure is the only real moat. Both are worth sitting with.
Also today
- Dianne Penn / Lenny Rachitsky
- Dan Shipper / Every.to
- Clement Delangue / Hugging Face
- Andrej Karpathy
- LangChain
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