Ask HN: How are much smarter AI models made?

By superasn · 2026-09-11 · 4 points · 0 comments

I am curious what actually happens between two generations of AI models. For example, how do you go from Sonnet to Opus? Is Opus trained from scratch, built on Sonnet, or mostly the same model with more compute and training? And how do models like Astra suddenly make a big jump…

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