Data curation RL is just SWE envs: code pretraining data increasingly consists of Claude-built, less-sloppy repos
willcb · x · 2026-11-14
Following up on his own thread, willcb notes that "data curation RL" in this context is essentially SWE environments: the so-called "code pretraining data" is increasingly made of progressively less-sloppy repos built by Claude. In other words, next-gen pretraining corpora are being reshaped — and cleaned — by prior-generation models, turning data curation itself into an agent workload.
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