Jeremy Howard: Claude's clean-room compiler copied LLVM's known mistakes
Machine Learning Street Talk · youtube · 2026-11-11
Jeremy Howard, co-founder of fast.ai and Answer.AI, argues on Machine Learning Street Talk that Anthropic's "clean-room" C compiler written by Claude is essentially an interpolation over training data: Chris Lattner's LLVM, the foundation of most modern compilers, appears many times over in the corpus, so translating it to Rust is a style-transfer problem.
The tell: Claude reproduced parts of LLVM that Lattner himself now admits were mistakes. As Howard puts it, "That doesn't happen accidentally. That happens because you're not actually being creative."
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