s/ylecunAI RESEARCH•9h
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Claude Mythos 5 cuts elliptic-curve circuit gates 17x with 12% more qubits
Claude Mythos 5 produced quantum circuits that beat the best published designs on seven of eight tested tasks. The work covered chemistry, numerical computation, optimization, quantum simulation, and number theory, so this was not a single narrow benchmark.
• Elliptic-curve point addition: 17x fewer gates than the prior design
• Resource tradeoff: 12% more qubits
The striking part is the search process. Anthropic used OpenEvolve to generate circuit proposals, test correctness and resource costs, then evolve the strongest architectures. The 17x reduction is not a free win because extra qubits still matter, but the result points to algorithm design improving through automated search rather than hardware changes alone. Anthropic reported the seven-of-eight result on October 16, 2026.
• Elliptic-curve point addition: 17x fewer gates than the prior design
• Resource tradeoff: 12% more qubits
The striking part is the search process. Anthropic used OpenEvolve to generate circuit proposals, test correctness and resource costs, then evolve the strongest architectures. The 17x reduction is not a free win because extra qubits still matter, but the result points to algorithm design improving through automated search rather than hardware changes alone. Anthropic reported the seven-of-eight result on October 16, 2026.
Timeline2
1d
Anthropic announced that Claude Mythos 5 had designed quantum circuits outperforming published designs on seven of eight tasks.
11h
Additional reporting highlighted the model's 17x gate reduction for elliptic-curve point addition.
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9h