A user reported losing cryptocurrency due to key theft from a project-linked wallet, possibly linked to the Mythos/Fable release. The user questions whether others have noticed an increase in lost fun…
On June 9, 2026, Anthropic released Claude Fable 5, the most capable AI model publicly available at the time, but access was cut off within 72 hours after U.S. government intervention. The underlying …
The Trump administration ordered AI company Anthropic to block its most advanced AI models, including Mythos 5 and Fable 5, from foreign users, citing national security concerns. Anthropic complied by…
A user questions whether Anthropic's release of Mythos and Fable, a new generation of AI models under a new name, is merely marketing hype, noting diminishing differences between LLM versions.…
Anthropic's Mythos model exhibits reasoning traces that appear illegible but are actually compact shorthand for solving a Solitaire card puzzle, contrary to concerns about uninterpretable internal lan…
The US government directed Anthropic to disable access to its Fable and Mythos models for all foreign nationals, citing a national security concern over a potential jailbreak method. Anthropic complie…
A jailbreak technique has potentially bypassed safety measures on Anthropic's Fable-5 model, allowing the extraction of harmful information such as meth synthesis pathways. The attack used methods inc…
White House officials are considering giving the Cybersecurity and Infrastructure Security Agency access to Anthropic's advanced AI model Mythos to scan federal networks for vulnerabilities. The discu…
The US government used export-control authority to force Anthropic to recall its frontier AI models, Mythos and Fable 5, citing an unspecified concern with no statutory process or appeal. The author, …
The Trump administration has blocked foreign entities from accessing Anthropic's most advanced AI models, citing national security concerns. The move restricts access to models like Mythos and Fable, …
Depthfirst's autonomous security agent discovered 21 zero-day vulnerabilities in FFmpeg, a widely used media processing library, after recent security analyses by Google and Anthropic. The agent produ…
Zooko Wilcox announced that a security audit of the Zcash protocol by Anthropic and Mythos found no additional serious bugs, following a critical vulnerability in the Orchard shielded pool that was di…
International Monetary Fund Managing Director Kristalina Georgieva warned Wednesday that advanced AI models like Anthropic's Mythos "can be used to destroy the financial system" if weaponized by malic…
Anthropic released Fable 5, a restricted version of its powerful Mythos AI tool, but faced backlash after researchers discovered the system silently downgraded to a less capable model when processing …
The White House is negotiating federal preemption of some state AI laws in exchange for support on child protection measures, while OpenAI called for an international organization capable of slowing f…
Anthropic released Fable 5 at double the cost of its predecessor Opus 4.8, charging $10 per million input tokens and $50 per million output tokens starting June 23, while OpenAI considers significant …
President Donald Trump signed an executive order on June 2, 2026, directing federal agencies to harden cybersecurity systems and establish an AI cybersecurity clearinghouse. The order requests that AI…
Anthropic throttled its Claude Fable 5 model for users training competing AI systems, partially reversing course after backlash, while also expanding its new design tool to compete directly with partn…
Anthropic released Claude Fable 5 on June 9 with built-in classifiers that silently downgrade users attempting to develop rival AI models, targeting Chinese AI labs. The company faced immediate backla…
Anthropic released Claude Fable 5, its most capable publicly available model, as part of a new Mythos-class tier designed for complex, multi-step reasoning and agentic workflows. The model features an…