Sdtimes iconSdtimesSep 2, 2026

Anthropic releases Claude Fable 5.1 and Mythos 5.1

Anthropic has released Claude Fable 5.1 and Mythos 5.1, addressing issues such as performance, data retention, safeguards and price. The updates also target scientific discovery, as the company tested the capabilities of the models across many domains.

Anthropic releases Claude Fable 5.1 and Mythos 5.1

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Anthropic has released Claude Fable 5.1 and Mythos 5.1, addressing issues such as performance, data retention, safeguards and price.

The updates also target scientific discovery, as the company tested the capabilities of the models across many domains.

Internal testing shows that Fable 5.1 outperforms Fable 5 when is comes to coding, knowledge work and problem-solving...

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Anthropic has released Claude Fable 5.1 and Mythos 5.1, addressing issues such as performance, data retention, safeguards and price. The updates also target scientific discovery, as the company tested the capabilities of the models across many domains. Internal testing shows that Fable 5.1 outperforms Fable 5 when is comes to coding, knowledge work and problem-solving...

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