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Microsoft Research says the 31-year-old KLS conjecture fell to a human-directed agentic search: roughly 100 AI-explored trajectories, pruned round by round, plus parallel independent proofs and a Lean 4 check. Unguided frontier-model runs on the same token budget fell short.
Anthropic says Claude Mythos 5 designed quantum circuits beating published records on 7 of 8 benchmark tasks, cutting gates up to 17x via a new divsteps algorithm.
Google DeepMind researchers report that four Gemini 4 Argon agents, coordinating only through in-game chat and shared memory, defeated Minecraft's Ender Dragon in 27 hours — 2,783 self-written programs, 605 deaths and no human-written game logic.