Claude Fable 5 brings Mythos to the masses — Anthropic’s new frontier model is ‘state-of-the-art on nearly all tested benchmarks’

Claude Fable 5 brings Mythos to the masses — Anthropic's new frontier model is 'state-of-the-art on nearly all tested benchmarks'

According to its model card, Fable 5 will also be nerfed in instances where a user attempts to use it to further cutting-edge AI or ML research, which is likely not only motivated by the company's recent concerns around AI self-improvement but also likely to be motivated by competitive concerns with other labs and with geopolitical actors.

Within those guardrails, Anthropic says Fable 5 is available everywhere today, and that access to it will be billed at $10 per million input tokens and $50 per million output tokens via the company's API. That's twice the cost of the now-last-gen Opus 4.8 and just over 3X the cost of Sonnet 4.6.

Those on Anthropic's Pro, Max, Team, and Enterprise subscription plans will have a short gratis access window to Fable 5, from now until June 22. After that point, access to the model will require paying for usage credits. The company says it will restore access to Fable 5 through these plans "as quickly as we can" when it has the compute capacity to do so.

The world hasn't ended as of this writing now that a public Mythos-class model is available. It'll surely be interesting to see what problems people are able (and aren't able) to tackle with an AI model of this level of capability—and with this degree of restriction around its capabilities. The only thing we can say for certain is that things are only going to get weirder from here.

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As the Senior Analyst, Graphics at Tom's Hardware, Jeff Kampman covers everything that has to do with graphics cards, gaming performance, and more. From integrated graphics processors to discrete graphics cards to the hyperscale installations powering our AI future, if it's got a GPU in it, Jeff is on it.\u00a0 ","collapsible":{"enabled":true,"maxHeight":250,"readMoreText":"Read more","readLessText":"Read less"}}), "https://slice.vanilla.futurecdn.net/13-4-24/js/authorBio.js"); } else { console.error('%c FTE ','background: #9306F9; color: #ffffff','no lazy slice hydration function available'); } Jeffrey Kampman Senior Analyst, Graphics As the Senior Analyst, Graphics at Tom's Hardware, Jeff Kampman covers everything that has to do with graphics cards, gaming performance, and more. From integrated graphics processors to discrete graphics cards to the hyperscale installations powering our AI future, if it's got a GPU in it, Jeff is on it.

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