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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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Notes and pelicans for today's GPT-5.4 mini and nano releases - the nano model looks like it could describe every image in my 76,000 photo library for $52 total https://simonwillison.net/2026/Mar/17/mi…

GPT-5.4 mini and GPT-5.4 nano, which can describe 76,000 photos for $52