Anthropic has completed training a new AI model — the successor to Mythos 5
Anthropic, according to analyst Andrew Curran, has completed training a new model that could become the next generation of Mythos. There has been no official confirmation from the company yet—neither a name nor stated specifications. However, the very fact of a system surpassing Mythos 5 emerging is already attracting market attention.
Curran suggests the model could be released under the name Mythos 5.1 or Mythos 6, or kept for internal use. Interestingly, the announcement came just nine days after US export restrictions forced Anthropic to suspend work on Mythos 5 and Fable 5.
Why the suspension did not halt development
On June 12, US Secretary of Commerce Howard Lutnick sent an order to Anthropic CEO Dario Amodei, citing national security concerns. The restrictions affected all foreign nationals, including company employees born outside the US. As a result, Anthropic disabled both models worldwide.
Authorities discovered a way to bypass Fable 5's safeguards. Anthropic reviewed the demonstration, acknowledged the issue was narrow, but emphasized that such requirements could block the release of new models across the entire industry. The company continues to seek the lifting of export restrictions, especially after Amazon's warnings to officials reportedly accelerated the decision-making process.
Notably, Anthropic itself allegedly notified the administration that its researchers had used Fable 5 to search for information with potentially dangerous applications. After this, Donald Trump commented on the situation, and Anthropic CEO Dario Amodei also spoke publicly.
Blockade as an accelerator of progress
Curran believes that blocking development is unlikely to slow progress and may even accelerate it—by freeing up resources. He cites open-source competitors as an example, such as GLM-5.2 from Z.ai, which handles programming no worse than much more expensive closed models.
Thus, the fate of the next version remains uncertain. Whether Anthropic releases it publicly, restricts access to the Glasswing project, or keeps it for internal use only—this will significantly change the balance of power in the AI market. The company continues to seek restoration of access to both blocked models.
Expert opinion: The situation surrounding Anthropic clearly demonstrates how regulatory restrictions can not only hinder but also stimulate innovation—especially in the open-source model segment. Investors should closely monitor developments: if the new model remains internal, it could strengthen the position of open-source competitors and alter market shares.