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Curated tech posts from X on AI, startups, and product development—signal without the doomscroll, updated on weekdays.
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deepseek v4.1 flash is kind of crazy in 1 month they managed a new architecture, a new pretrain, and significantly scaled RL training again... 1 month! the arch is great for efficiency, but what's significant to me is the post-training scaling. most of the improvement is essentially just more compute + more data at the RL stage at this point the model is mostly made in post-training