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Anthropic Introduces Claude Fable 5.2 and Claude Mythos 5.2

Claude · XFrom the source· @claudeai·· 3 days ago

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Who
Anthropic
What
released Claude Fable 5.2 and Claude Mythos 5.2
When
Quote
Introducing Claude Fable 5.2 and Claude Mythos 5.2, designed to tackle the most daunting technical challenges.

What happened

Anthropic introduces Claude Fable 5.2 and Claude Mythos 5.2, describing them as designed for demanding technical challenges. The company says they are capable collaborators on ambitious projects and show improvements in coding, reasoning, and vision.

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See the full storyAnthropic Releases Claude Fable 5.2 and Mythos 5.2 with Lower API Prices

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    Article

    Introducing Claude Fable 5.2 and Claude Mythos 5.2, designed to tackle the most daunting technical challenges.

    They’re capable collaborators on ambitious projects in many fields, and show improvements in areas like coding, reasoning, and vision.

    The story so far

    Anthropic released Claude Fable 5.2 and Claude Mythos 5.2, lowering API prices to $8 per million input tokens and $40 per million output tokens, from $10 and $50. Anthropic says both models improve coding, reasoning, and vision, and that Fable produces responses faster than version 5.1. Fable is available to paid users with safeguards for risky cybersecurity and biology tasks; Mythos is limited to organizations approved through Anthropic’s verification programs. The launch reports cite strong benchmark results, including Fable’s first-place score on Artificial Analysis’ Intelligence Index v5 at its highest compute tier. Those figures come from the named benchmark evaluations; Anthropic’s prerelease examples also include software migrations, electronic devices, and physics problems. TechCrunch reports that an optional faster serving mode costs twice as much, while the lower API prices apply to standard use.