Anthropic News

The Register
1 min read

Claude Opus wrote a Chrome exploit for $2,283

Pause your Mythos panic because mainstream models anyone can use already pick holes in popular software Anthropic withheld its Mythos bug-finding model from public release due to concerns that it would enable attackers to find and exploit vulnerabilities before anyone could react.…

Simon Willison
1 min read

llm-anthropic 0.25

Release: llm-anthropic 0.25 New model: claude-opus-4.7, which supports thinking_effort: xhigh. #66 New thinking_display and thinking_adaptive boolean options. thinking_display summarized output is currently only available in JSON output or JSON logs. Increased default max_tokens to the maximum...

MIT Technology Review
1 min read

Why having “humans in the loop” in an AI war is an illusion

The availability of artificial intelligence for use in warfare is at the center of a legal battle between Anthropic and the Pentagon. This debate has become urgent, with AI playing a bigger role than ever before in the current conflict with Iran. AI is no longer just helping humans analyze...

The Verge
1 min read

Anthropic releases a new Opus model amid Mythos Preview buzz

Anthropic has released its most powerful "generally available" model to date: Claude Opus 4.7. The company called it a step up from Opus 4.6 for advanced software engineering tasks, particularly in complex coding areas that in the past required more hand-holding. It's also supposed to be better at...

The Register
1 min read

If you want into Anthropic's Claude club, you may have to show ID

Worse: Anthropic is using Persona, a privacy checker that rings alarm bells for the paranoids on Reddit Anthropic may check your ID before letting you access certain Claude features, and the verification vendor it has picked is the same outfit that sparked controversy when Discord tested similar...

The Register
1 min read

Anthropic's Project Glasswing CVE tally is still anyone's guess

Like the majority of the companies participating, it remains a mystery Last week, Anthropic surprised the world by declaring that its latest model, Mythos, is so good at finding vulns that it would create chaos if released. Now, under the title of Project Glasswing, over 50 selected companies and...

Simon Willison
1 min read

Cybersecurity Looks Like Proof of Work Now

Cybersecurity Looks Like Proof of Work Now The UK's AI Safety Institute recently published Our evaluation of Claude Mythos Preview’s cyber capabilities, their own independent analysis of Claude Mythos which backs up Anthropic's claims that it is exceptionally effective at identifying security...

The Register
1 min read

Claude is getting worse, according to Claude

Brief outage follows growing number of quality complaints Once the AI darling of programmers everywhere, Anthropic's Claude has been stumbling mightily, both in terms of cost and perceived quality. The service was down briefly on Monday with "a major outage," service trouble that only amplifies...

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