Anthropic launched Claude Fable 5.2 and Claude Mythos 5.2 on November 9, 2026, targeting coding, reasoning, and AI agent tasks

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From the articleAnthropic Launches Claude Fable 5.2 and Mythos 5.2: Same Model, Different SafeguardsAlso in Anthropic unveils new Fable, Mythos models as competition heats up ahead of IPO | Reuters, Anthropic launches Fable 5.2 and Mythos 5.2 with science, coding upgrades - SiliconANGLE, Anthropic releases Claude Fable 5.2 and Mythos 5.2, pairing new, record-high benchmarks with 20% API cost reduction, Anthropic's Claude Fable 5.2 Beats GPT-6 Cyber in Multi-Stage Cyberattack Benchmark

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Anthropic Launches Claude Fable 5.2 and Mythos 5.2: Same Model, Different Safeguards

441e85161Article

Anthropic unveils new Fable, Mythos models as competition heats up ahead of IPO | Reuters

441e85161Article

Anthropic launches Fable 5.2 and Mythos 5.2 with science, coding upgrades - SiliconANGLE

441e85161Article

Anthropic releases Claude Fable 5.2 and Mythos 5.2, pairing new, record-high benchmarks with 20% API cost reduction

441e85161Article

Anthropic's Claude Fable 5.2 Beats GPT-6 Cyber in Multi-Stage Cyberattack Benchmark