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Claude Fable 5 Vs Opus 4.8 And GPT-5.5: What The Benchmarks Show
The most powerful model Anthropic has ever sold went on general sale on 9 June, and the company bolted a governor to it before turning the key. Claude Fable 5 is the first Mythos-class model the firm has made available to everyone - a capability tier Anthropic places above its Opus flagships - with performance the company says exceeds any model it has previously released to the public, and a lead that widens the longer and more complex the task. The governor is the story. When a request touches offensive cybersecurity, sensitive biology or chemistry, or an attempt to copy the model’s capabilities, the answer quietly comes from the older Claude Opus 4.
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thenextweb.com
Anthropic releases Claude Fable 5, its first Mythos-class model for the public
Anthropic launched Claude Fable 5 on Tuesday, a Mythos-class model with safeguards blocking cybersecurity and biology queries, priced at $10 per million input tokens.
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techcrunch.com
Anthropic releases Claude Fable, a version of Mythos, days after warning AI is becoming too dangerous
Anthropic is releasing Claude Fable 5, its first Mythos-class model available to the public. The model comes with guardrails that block responses in high-risk areas like…
