U.S. Government Orders Anthropic to Disable Claude Fable 5 and Mythos 5★ 78
TechCrunch AIyesterdayRegulationTechCrunch reports that the U.S. government ordered Anthropic to immediately disable Claude Fable 5 and Claude Mythos 5 worldwide, citing national security concerns. Anthropic says the order appears tied to a claimed narrow jailbreak of Fable 5, but argues the cited capability is already common in other public models. The move highlights a potential backlash against Anthropic’s safety-first messaging around especially powerful AI systems.
US Directive Targets Access to Fable 5 and Mythos 5★ 76
Simon Willison's WeblogyesterdayRegulationSimon Willison comments on Anthropic’s statement that a US government export-control directive requires suspending access to Fable 5 and Mythos 5 for all foreign nationals, including Anthropic employees. Anthropic says the directive cites national security concerns but offers only verbal evidence of a narrow Fable 5 jailbreak. Willison notes that, as of 9:01pm ET, he still had access to Fable through claude.ai and Claude Code.
OpenAI Weighs Price Cuts as Anthropic Competition Intensifies
Hacker News (AI keywords)3 days agoBusinessOpenAI is reportedly weighing price reductions as competitive pressure from Anthropic increases. Based only on the provided title, the report appears to concern business strategy rather than a new model or product release. For developers, founders, investors, and general AI users, the key implication is that pricing may become a more important battleground among leading AI providers.
Anthropic Claude Fable 5: Mythos-Class Power with Controversial Terms★ 84
Latent Space4 days agoReleaseAnthropic released Claude Fable 5 as its first broadly available Mythos-class model, alongside restricted Mythos 5 access. Benchmarks and ecosystem reports show strong gains in coding, long-horizon agentic tasks, research, and vision. The controversy centers on 30-day retention for Mythos-class traffic and silent interventions that may reduce effectiveness on frontier LLM development tasks, raising trust, reproducibility, and open AI concerns.
OpenAI files for IPO, following Anthropic★ 74
The Verge AI5 days agoBusinessOpenAI announced Monday that it confidentially submitted a Form S-1 with the US Securities and Exchange Commission. The move follows Anthropic, which reportedly made the same filing step on June 1. The Verge frames this as part of an IPO race between the two AI rivals, but the report does not provide timing, valuation, or offering details.
Following Anthropic, OpenAI files confidentially for IPO★ 78
TechCrunch AI5 days agoBusinessOpenAI said Monday in a blog post that it has confidentially filed for an initial public offering. The move comes a little over a week after Anthropic, its main rival, also filed to go public. TechCrunch notes that OpenAI was last valued at $852 billion post-money, making the filing a major marker in the AI sector’s race toward public markets.
Core OpenAI Chip Talent Joins Anthropic Before Reported Mass Production
量子位 QbitAI6 days agoHardwareQbitAI reports that a core figure behind OpenAI’s first in-house chip has moved to Anthropic. The timing matters because the move is framed as happening just before mass production. Without the full article, details such as the person’s identity, role, chip specifications, production schedule, and Anthropic’s exact plans remain unconfirmed.
Anthropic Series H Valuation Reaches $965B, Backed by Memory Giants★ 78
INSIDE 硬塞 AI16 days agoBusinessAnthropic completed a $65 billion Series H round, bringing its valuation to $965 billion and reportedly surpassing OpenAI. The round included strategic investments from memory makers Micron, Samsung, and SK Hynix. The news highlights how frontier AI companies are increasingly tied to hardware and memory supply chains, as investors continue backing foundational model competition.