Yhn CultureTheatre first seen 5 d ago, last 5 h ago, peak #4

There Is No Post-Training Data Commons, Essay Argues

Original: There is no posttraining data commons

A new essay from OpenAthena argues that while AI labs rely heavily on post-training data to shape model behavior, no genuine commons or shared repository exists for this data, unlike early machine learning datasets. It contends that post-training datasets remain proprietary, fragmented and undisclosed, limiting reproducibility and independent research into how models are tuned.

Why now: Debate over AI transparency and data access is intensifying as post-training becomes central to model quality.

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Evidence

• There is no posttraining data commons · lukasschwab · 127

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