Claude Fable 5.2: Price, Plans and Mythos 5.2

Anthropic released Claude Fable 5.2 on Nov 9, 2026, together with Claude Mythos 5.2. Claude Fable 5.2 is the company's most capable model for hard technical work, and on the API it costs 20% less than Fable 5.1. Some headlines said it is 20% cheaper than rival models. Anthropic's own announcement compares it only with its previous version, and the lower price is for developers on the API, not a cheaper Claude subscription.

What Claude Fable 5.2 is for

Anthropic says Fable 5.2 is "built for demanding reasoning and long-horizon agentic work." In its words, it "takes on ambiguous problems for days, questions and verifies its own work, and orchestrates subagents to improve results in a loop." In plain terms, it is meant for long coding and research tasks where the model has to plan, check itself and split the work.

There is also an optional fast mode. Anthropic says it "speeds up token generation by up to 2.5 times," at a higher price.

The Claude Fable 5.2 price on the API

These are Anthropic's numbers per million tokens (a token is roughly three quarters of a word):

input: $8, down from $10 for Fable 5.1,
output: $40, down from $50,
cache reads: $0.20,
fast mode: $16 input and $80 output.

Anthropic also lists US-only processing at 1.1 times the standard price.

Who gets it, and who doesn't

The announcement says: "Claude Fable 5.2 is available to Pro, Max, Ultra, Team, and Enterprise users." The Free plan is not on that list. If you use Claude for free, you keep the models the Free plan already has.

Claude Mythos 5.2 is the part most posts skip. Anthropic calls it "the same model as Claude Fable 5.2, available only to organizations verified through Anthropic's verification programs." The difference is the safeguards. Fable has strong limits on cybersecurity and biology misuse, which is why Anthropic can offer it to everyone on a paid plan. Mythos is for approved cyberdefenders and life science researchers, who apply through the Cyber Verification Program or the Life Sciences Verification Program.

FAQ

How much does Claude Fable 5.2 cost?

On the API, $8 per million input tokens and $40 per million output tokens, 20% less than Fable 5.1. In the Claude apps it comes with the Pro, Max, Ultra, Team and Enterprise plans at their usual price.

Is Claude Fable 5.2 free?

No. Anthropic lists it for Pro, Max, Ultra, Team and Enterprise users. The Free plan doesn't get it.

What is the difference between Claude Fable 5.2 and Mythos 5.2?

They are the same underlying model. Fable 5.2 has stronger safeguards and is open to paid users; Mythos 5.2 is only for organizations Anthropic has verified for security or life science work.

Sources

Checked against official sources on Nov 10, 2026. The character in our posts is made with AI; the text is written with AI help and checked by hand rules.

Claude Fable 5.2 is out: the new price and who gets it