News
Introducing Claude Fable 5.2 and Claude Mythos 5.2
First reported anthropic.com
Page published
Earliest dated coverage: 10 Nov 2026 · First observed: 10 Nov 2026 · Latest dated coverage: 10 Nov 2026
Coverage timeline
Single-source incident — one report is available.
Why it matters
Cisco’s Mythos integration expands enterprise access to AI-model and agent security testing, with access mediated through a security product rather than direct use of the underlying model.
Anthropic is expanding controlled access to its Mythos model through integrations with Cisco AI Defense and IBM Concert. Cisco says Mythos will augment red-team testing of customers’ AI models, agents, and applications under existing licenses, without giving customers direct access to the model itself.