Anthropic has released Claude Fable 5.2 and Claude Mythos 5.2, its latest frontier AI models. The company says they generate outputs 30% faster and cost 20% less than the 5.1 generation.
Anthropic has made Claude Fable 5.2 generally available, while Claude Mythos 5.2 remains limited to vetted organisations. The company lists pricing at $8 per million input tokens and $40 per million output tokens.
Anthropic previously introduced Fable as a publicly available version of Mythos with additional safeguards. It says the latest models underwent safety and alignment testing, supported by new evaluations and post-launch monitoring tools.
Anthropic positions Fable 5.2 for complex, open-ended technical work, including engineering, mathematics and robotics. It says Claude Opus 5.5 is better suited to daily tasks, making Fable a model for builders to assess against their hardest problems rather than a default replacement.
Lower token prices could reduce the cost of demanding AI workloads, but savings depend on how much input and output a task requires.
Restricted access to Mythos 5.2 means most builders should assess the generally available Fable 5.2 instead.
The speed and cost improvements are Anthropic's claims; whether they deliver better results on a company's own tasks remains unproven.
Written automatically by the Made in 10 Newsroom from the source above.
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