Letter: the US lifts its block on Mythos 5, allowing Anthropic to release it to more than 100 US institutions; sources: talks about Fable 5 are ongoing (Semafor)

<a href="https://www.semafor.com/article/06/27/2026/us-releases-powerful-anthropic-model-mythos-to-some-us-companies"><img align="RIGHT" border="0" hspace="4" src="http://www.techmeme.com/260626/i30.jpg" vspace="4" /></a> <p><a href="https://www.techmeme.com/260626/p30#a260626p30" title="Techmeme permalink"><img height="12" src="http://www.techmeme.com/img/pml.png" style="border: none; padding: 0; margin: 0;" width="11" /></a> <a href="https://www.semafor.com/">Semafor</a>:<br /> <span style="font-size: 1.3em;"><b><a href="https://www.semafor.com/article/06/27/2026/us-releases-powerful-anthropic-model-mythos-to-some-us-companies">Letter: the US lifts its block on Mythos 5, allowing Anthropic to release it to more than 100 US institutions; sources: talks about Fable 5 are ongoing</a></b></span>&nbsp; &mdash;&nbsp; THE SCOOP&nbsp; &mdash;&nbsp; The US government Friday lifted its block on Anthropic's powerful Claude Mythos 5 AI model, allowing the company to release &hellip; </p>