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Pretraining

2 GoKawiil briefs on this topic

Essay argues no equivalent 'commons' exists for posttraining LLM data

A new essay examines how large language model pretraining relied on an enormous, freely available body of text—Wikipedia, Common Crawl, ArXiv, Stack Exchange, Project Gutenberg and open-source code—that had accumulated over decades. The author notes that Common Crawl alone holds roughly 10 petabytes of archived web data, and that models like GPT-3 and the original Llama were built largely from this material. The piece then argues that no comparable public resource exists for the posttraining stage of building AI models.

Startup claims new pretraining recipe cuts compute 10x vs open-weight models

A research team reports developing a pretraining method that matches DeepSeek V4 Pro Base's performance using roughly 50 times less compute, at an estimated cost of about $0.5 million on GB200 chips. Scaling the same recipe up 10x further, to roughly $4 million, reportedly surpassed all publicly available open base models on perplexity benchmarks.