Why was Mythos 5 suspended?

The US government issued an export-control directive citing national security. Anthropic disagrees and says it is working to restore access.

When will Mythos 5 come back?

No date has been given. Sign up on this page to be emailed the moment it returns.

Is Mythos 5 back?

Q: Is Mythos 5 back?

Not yet. Anthropic's Mythos 5 has been suspended since 12 June 2026 under a US export-control directive. This page checks Anthropic's API live and will say Yes the moment it returns.

Mythos 5 is still gone.

Mythos 5 and Fable 5 were disabled on 12 June 2026 under a US export-control directive. This page checks Anthropic's API live and flips to Yes the moment Mythos 5 is back.

As of 15 June 2026, Anthropic's Mythos 5 remains suspended under a US export-control directive issued on 12 June 2026. This page checks the Anthropic API live and flips to Yes the moment it returns.

Full timeline · Why it was suspended, and the EU reaction

Field observation Pl. V · Mythos

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