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GPT-5.5 Pro Solved PhD-Level Math in an Hour. Anthropic's Claude Learned to "Dream"
Artificial intelligence edged closer to a once-unthinkable milestone this week: cracking open mathematical problems at PhD level in under an hour. While Fields Medal winner Timothy Gowers stress-tested GPT-5.5 Pro, Anthropic rivals were teaching their Claude model to "dream" — and quietly inked a computing deal with Elon Musk. What else shook the AI research world in the past seven days?