Anthropic just got the green light to put its most powerful AI model back in the hands of select US partners, ending a tense two-week standoff with the Trump administration over national security risks.
Commerce Secretary Howard Lutnick confirmed on June 26 that Claude Mythos 5, the AI model Anthropic launched on June 9, can now be accessed by roughly 100 vetted companies and federal agencies. The catch: it’s not a full public release. It’s a controlled rollout to what the government is calling “certain trusted partners.”
From launch to lockdown to limited access
Here’s the timeline. Anthropic launched both Claude Mythos 5 and its more secure companion, Fable 5, on June 9. By June 12-13, the Commerce Department had slapped export controls on both models, forcing Anthropic to suspend all customer access. The concern was straightforward: the models’ capabilities in areas like cybersecurity vulnerability discovery and biodefense screening made them potentially dangerous in the wrong hands.
Mythos 5 features a 1 million-token context window, which in plain terms means it can process and reason over enormous amounts of information in a single pass. It’s built for advanced applications including drug design, vulnerability discovery, and biodefense screening.
