cd/entity/Mythos 5· home entities Mythos 5
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Mythos 5

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// recent coverage 378 mentions

23:53
2026-06-30
simonwillison.net
generative-ai

Quoting Anthropic

Anthropic announced that the Department of Commerce has lifted export controls on its Claude Fable 5 and Mythos 5 models, with access restoration beginning tomorrow.…

22:04
2026-06-30
dev.to
artificial-intelligence

Sonnet 5 dropped today. Watch the other hand.

Anthropic's most powerful model, Fable 5, has been taken offline worldwide since June 12 following an emergency US Commerce Department directive citing national security concerns after a jailbreak met…

21:23
2026-06-30
simonwillison.net
large-language-models

What's new in Claude Sonnet 5

Anthropic released Claude Sonnet 5, a new AI model with performance close to Opus 4.8 at lower prices, and updated its API by removing temperature, top_p, and top_k parameters. The model's tokenizer i…

17:57
2026-06-30
9to5mac.com
large-language-models

Anthropic upgrades Claude with new Sonnet 5 model, details here

Anthropic released Claude Sonnet 5, its most agentic medium-sized AI model, replacing Sonnet 4.6 as the default for free and pro users. The model offers improved reasoning, tool use, and coding at low…

07:22
2026-06-30
dev.to
artificial-intelligence

Someone Else Pays for Your AI Access

Anthropic's access controls for its AI models have created a global supply chain where individuals in lower-income countries are paid under $30 to complete biometric verification, enabling proxy acces…

22:41
2026-06-29
cryptobriefing.com
ai-safety

US government partially lifts Anthropic AI export ban

The US Commerce Department partially lifted a ban on Anthropic's Mythos 5 AI model, restoring access to over 100 vetted US entities while keeping the Fable 5 model completely restricted. The original …

17:36
2026-06-29
letsdatascience.com
ai-policy

US Government Suspends Anthropic Fable and Mythos Access

The US government suspended access to Anthropic's Fable 5 and Mythos 5 AI models on June 12 under an export control directive, citing national security concerns. Anthropic disabled the models for all …

12:10
2026-06-29
technologyreview.com
artificial-intelligence

The Download: metric weaknesses and AI elephant warnings

The US government has allowed Anthropic to release its Mythos 5 AI model to approximately 100 trusted US companies and federal agencies, reversing previous restrictions over national security concerns…

09:00
2026-06-29
nbcnews.com
ai-safety

Voters of both parties want tighter AI regulation, poll finds

A new poll by the AI Policy Institute finds that an overwhelming majority of likely voters from both parties want mandatory safety reviews for powerful AI systems before public release, with Republica…

04:14
2026-06-29
letsdatascience.com
ai-policy

Austria Urges EU to Host Anthropic After US Curbs

Austria's State Secretary for Digitalization, Alexander Proell, urged the European Union to host Anthropic after US export controls forced the AI company to disable its frontier models for foreign use…

21:39
2026-06-28
letsdatascience.com
ai-policy

Anthropic Restores Fable 5 After US Ban

The U.S. government ordered Anthropic to suspend access to its Fable 5 and Mythos 5 AI models on June 12, 2026, citing a reported jailbreak, marking the first forced removal of a widely-deployed front…

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