All of these tests performed far better than what I expected given my prior poor experiences with agents. Did I gaslight myself by being an agent skeptic? How did a LLM sent to die finally solve my agent problems? Despite the holiday, X and Hacker News were abuzz with similar stories about the massive difference between Sonnet 4.5 and Opus 4.5, so something did change.
Nature, Published online: 26 February 2026; doi:10.1038/d41586-026-00555-3
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Archaeologists have been stunned to discover two of the rarest Iron Age objects in the same excavation.