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Every AI News story tagged with both Anthropic and Frontier AI — the two topics side by side, updated as new articles publish.
15 articles
More than 1,200 employees at OpenAI, Anthropic, Google DeepMind, and Meta have signed a letter asking Washington to back international tools for pacing frontier AI development.
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Claude Opus 5 is Anthropic's new mid-tier AI model — nearly matching flagship Fable 5's performance at half the token price. Here's what it is and what it costs.
Read more →Anthropic released Claude Opus 5 on July 24, pairing near-flagship coding and agent performance with Claude Fable 5's results at roughly half the cost, plus gains in science and finance tasks.
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Claude Fable 5 is Anthropic's most capable publicly available AI model. Here's what it is, how it differs from Claude Mythos 5, and what it costs to use.
Read more →Anthropic mathematician Levent Alpöge used Claude Fable 5 to find a counterexample to the 1939 Jacobian conjecture, and mathematicians including Terence Tao independently verified it within days.
Read more →The Trump administration is increasingly deciding which firms can access frontier AI models from Anthropic and OpenAI, CNBC reports, shifting gatekeeping from the labs to the government itself.
Read more →Claude Mythos 5 is Anthropic's cybersecurity-focused AI model, built to hunt software vulnerabilities — and available to only about 100 vetted partners, not the public.
Read more →Ukraine's Ministry of Digital Transformation says it will prioritize AI systems it can run on its own servers, citing lessons from recent US restrictions on Anthropic.
Read more →Anthropic restored global access to Claude Fable 5 on July 1 after the US Commerce Department lifted export controls imposed 19 days earlier, following a jailbreak discovered by Amazon researchers.
Read more →Claude Fable 5 returned to users worldwide on July 1 after the US Commerce Department lifted a 19-day export control that had suspended the flagship model following the discovery of a jailbreak technique.
Read more →Austria's State Secretary for Digitalization has urged the European Commission to explore bringing Anthropic to the EU, after US export controls cut off European access to Claude Fable 5 and Mythos 5.
Read more →Anthropic is restoring global access to Claude Fable 5 starting July 1, three weeks after a US export control order, and is rolling out a four-criteria jailbreak severity framework developed with Amazon, Microsoft, and Google.
Read more →Google has pushed its flagship Gemini 3.5 Pro model from June to July 2026, while a Nobel Prize winner and three other senior researchers departed for OpenAI and Anthropic in the same week.
Read more →The Trump administration authorized Anthropic to restore Claude Mythos 5 access for roughly 100 US critical infrastructure organizations, ending a two-week suspension. The consumer-facing Fable 5 model remains offline pending further negotiations.
Read more →The Trump administration has cleared Anthropic to restore Claude Mythos 5 access for over 100 US companies and federal agencies, two weeks after a global ban imposed over security concerns.
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