{"slug": "anthropic-gets-us-approval-to-bring-back-claude-mythos-5", "title": "Anthropic gets US approval to bring back Claude Mythos 5", "summary": "The US government has approved Anthropic to redeploy its Claude Mythos 5 AI model for cybersecurity, allowing US organizations that protect critical infrastructure to use it. The approval mirrors a similar exception granted to OpenAI for its GPT-5.6 Sol model. Anthropic is working to expand access to Mythos 5 and restore availability of Fable 5, though no timeline has been provided.", "body_md": "# Anthropic gets US approval to bring back Claude Mythos 5\n\n**The US government has approved Anthropic to redeploy Claude Mythos 5, according to the company.** The model is [Anthropic's most powerful AI model for cybersecurity](https://the-decoder.com/anthropic-releases-claude-fable-5-and-mythos-5-with-major-gains-in-coding-and-science/) and can now be used again by US organizations that operate and protect critical infrastructure. The approval likely mirrors the one granted to OpenAI, which can offer its new [frontier model GPT-5.6 Sol](https://the-decoder.com/openais-claude-mythos-competitor-gpt-5-6-sol-launches-under-government-controlled-access-it-calls-unsustainable/) to select organizations and customers. [Under this exception](https://www.theverge.com/ai-artificial-intelligence/958458/anthropic-mythos-5-is-back-trump-negotiations), Anthropic employees who aren't US nationals and members of approved organizations who aren't US nationals are all cleared to use Mythos 5.\n\nAnthropic is also working with the government to expand access to Mythos 5 and make Fable 5 broadly available again. The company hasn't given a timeline. OpenAI expects \"a few weeks\" for GPT-5.6 Sol.\n\nSince June 12, Anthropic had been working with the US government to restore access to Mythos 5 and Fable 5. [Both models had been blocked earlier](https://the-decoder.com/us-government-forces-anthropic-to-disable-claude-fable-5-and-mythos-5-for-all-customers-worldwide/) on government orders.\n\n```\nAI News Without the Hype – Curated by Humans\n\n\t\t\t\t\tSubscribe to THE DECODER for ad-free reading, a weekly AI newsletter, our exclusive \"AI Radar\" frontier report six times a year, full archive access, and access to our comment section.\t\t\t\t\n\n\t\t\t\t\tSubscribe now\n```\n\n[Anthropic](https://x.com/AnthropicAI/status/2070665903440871779)", "url": "https://wpnews.pro/news/anthropic-gets-us-approval-to-bring-back-claude-mythos-5", "canonical_source": "https://the-decoder.com/anthropic-gets-us-approval-to-bring-back-claude-mythos-5/", "published_at": "2026-06-27 09:43:39+00:00", "updated_at": "2026-06-27 10:03:11.413843+00:00", "lang": "en", "topics": ["ai-safety", "ai-policy", "ai-products"], "entities": ["Anthropic", "Claude Mythos 5", "OpenAI", "GPT-5.6 Sol", "Claude Fable 5", "US government"], "alternates": {"html": "https://wpnews.pro/news/anthropic-gets-us-approval-to-bring-back-claude-mythos-5", "markdown": "https://wpnews.pro/news/anthropic-gets-us-approval-to-bring-back-claude-mythos-5.md", "text": "https://wpnews.pro/news/anthropic-gets-us-approval-to-bring-back-claude-mythos-5.txt", "jsonld": "https://wpnews.pro/news/anthropic-gets-us-approval-to-bring-back-claude-mythos-5.jsonld"}}