US partially restores access to Anthropic's top AI model for critical firms
What happened: The US government has partially lifted a two-week-old ban that blocked access to Anthropic's most powerful AI model, Claude Mythos 5, allowing over 100 US companies and institutions—including many Fortune 500 firms that operate critical infrastructure—to regain access. Anthropic confirmed the move on Friday, saying the government notified it that Mythos 5 can be redeployed to these organisations while work continues to expand access and return the related Fable 5 model to general availability.
Why it matters to Nigerians: Although the restriction applies only to US-based entities, it signals a growing trend of governments controlling access to frontier AI models based on perceived security risks. Nigerian startups, researchers, or firms that rely on US-hosted AI services could face similar restrictions in the future, affecting AI-driven product development, research collaborations, and access to cutting-edge tools.
What you should know: The restoration is limited to specific US organisations deemed critical infrastructure; the general public still cannot use Mythos 5. Anthropic says it is working with the government to broaden access and restore Fable 5. Meanwhile, OpenAI has delayed the public launch of its GPT-5.6 model after a similar US government request. Watch for any policy shifts that could affect AI access for Nigerian tech firms and consider diversifying AI suppliers or advocating for transparent access policies.