InfoSecBulletin Cybersecurity for mankind
Anthropic has said it will release Mythos-class models to the public. They had to delay this because of security concerns for both public and private software. Mythos was announced in April as a limited model and was given only to certain companies, like security researchers.
At that time, Anthropic pointed out big “safety” risks with the Mythos model and chose not to launch it publicly.
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“The advantage will belong to the side that can get the most out of these tools,” Anthropic warned in April when it announced the Mythos model.
“In the short term, this could be attackers, if frontier labs aren’t careful about how they release these models. In the long term, we expect it will be defenders who will more efficiently direct resources and use these models to fix bugs before new code ever ships.”
AI companies usually wait to launch powerful models until they create strong rules to stop misuse.
Anthropic seems to have created strong rules to stop people from misusing the Mythos model, which is thought to be much better than Opus 4.8 and other models online.
Anthropic prepares roll out of Mythos model
Anthropic confirmed in a blog post that it plans to release Mythos-class models to the public soon, but it has not given a specific date.
“We’re making swift progress on developing these safeguards and expect to be able to bring Mythos-class models to all our customers in the coming weeks,” Anthropic said in a blog post.
Anthropic says it is letting a few groups use Claude Mythos preview for cybersecurity tasks, but it is not clear if the same model will be made public.
The company says the Mythos model has big improvements in code thinking and independence, much better than Claude’s main model, Opus 4.8.
It is also worth noting that the “Mythos-preview” model briefly appeared for some users on Claude Code before it was taken offline.
