Anthropic says the new models "show improvements in areas like coding, reasoning, and vision," as well as in communicating more clearly with users. Get your pass savings & deals before it starts. Image Credits:bIllustration y Nikolas Kokovlis / NurPhoto / Getty Images AI Anthropic releases new Mythos and Fable models amid RSI concerns Russell Brandom 11:24 AM PST · November 9, 2026 Anthropic released new versions of its most advanced models on.