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Which they basically already said there isn't.
"While unlikely, we cannot rule out that de-identified data derived from their usage of our products helped improve our models. However, our proofs differ significantly and even the precise results proved are different in the Euler case (forced vs unforced)."
yeah, that’s a sore point. even most open weights models are very closed about the data they used. @ai2.bsky.social is the blessed exception to this 🥰😍