Checked fact 439410 Nov 2026Models and releases

The system card says Claude Fable 5.2 and Claude Mythos 5.2 are two configurations of a new large language model from Anthropic.

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The exact words it rests on

Claude Fable 5.2 and Claude Mythos 5.2 are two configurations of a new large language model from Anthropic.

What the source said when we opened it, on 10 Nov 2026.

The source

https://assets.claude.com/27d60918d218125e7504bc7354c4b4626ec56b11.pdf
2026-11-09

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Checked

Checked by the notis newsroom on 10 Nov 2026, against the source above.

In the story

Claude Fable 5.2 costs $8 per million input tokens; Mythos 5.2 is vetted-only 10 Nov 2026

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In a sentence

“The system card says Claude Fable 5.2 and Claude Mythos 5.2 are two configurations of a new large language model from Anthropic.” ai notis, checked 10 Nov 2026. https://ainotis.com/c/4394

As a reference (APA style)

ai notis. (2026, November 10). The system card says Claude Fable 5.2 and Claude Mythos 5.2 are two configurations of a new large language model from Anthropic [Checked claim 4394]. ai notis. https://ainotis.com/c/4394

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