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Mythos 6

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AnthropicSOTA scope

Not out yet. Anthropic hasn't released Mythos 6; the latest signal, on August 4, 2026: Mythos 6 has reportedly finished training — and Anthropic's last Mythos still isn't something you can call. What we know so far: no date; unannounced; Mythos 5.1 (Sep 1) is still limited to vetted organizations. Swept every 60 seconds across provider catalogs. The moment it answers on a public API, alerts fire: a text or a call on paid plans the second it's confirmed, then a free Chrome push and email about 15 minutes later.

An email when Mythos 6 answers on a public API, about 15 minutes after members, plus every frontier launch · no card

Timeline

2026-08-04

Mythos 6 has reportedly finished training — and Anthropic's last Mythos still isn't something you can callpost

The claim: Mythos 6 has completed internal training. It could eventually launch as Mythos 6 or Mythos 6.1. It is built to power the next generation of Anthropic's most capable systems. Deployment has reportedly been slowed by restrictions surrounding Fable 5 and Mythos 5.

Current model in this line

Mythos 5.1, live since September 1, 2026.

The official word

We alert on verified API behavior, never on announcements alone — but when Anthropic speaks, it's here: anthropic.com/news ↗

Mythos 6: quick answers

Is Mythos 6 out yet?

Not yet. ArtificialWatch has not seen Mythos 6 answer on any public API it sweeps. The moment it does, subscribers get an alert.

Which model is current until Mythos 6 ships?

The current model in this line is Mythos 5.1 from Anthropic, live since September 1, 2026.

Who makes Mythos 6?

Anthropic. ArtificialWatch also tracks Claude Haiku 5.5, Claude Sonnet 5.5, Claude Opus 5.5, Fable 5.1, Mythos 5.1, Claude Opus 5, Fable 5 and Claude Sonnet 5 from Anthropic.

More from Anthropic

Claude Haiku 5.5live since 2026-10-07

Claude Sonnet 5.5live since 2026-09-28

Claude Opus 5.5live since 2026-09-22

Fable 5.1live since 2026-09-01

Mythos 5.1live since 2026-09-01

Claude Opus 5live since 2026-07-24

Fable 5live since 2026-07-01

Claude Sonnet 5live since 2026-06-30

Cite this page

Writing about Mythos 6? Copy a link or a citation.

<a href="https://artificialwatch.com/model/mythos-6">Mythos 6 on ArtificialWatch</a>

ArtificialWatch, "Mythos 6", https://artificialwatch.com/model/mythos-6

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Free: a Chrome push and an email about 15 minutes after it's confirmed on a public API. Members get a text or a phone call the second it lands.

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