Fable 5 access will be restored within the next 48 hours.

The US government, citing national security authorities, has issued an export control directive to suspend all access to Fable 5 and Mythos 5 by any foreign national, whether inside or outside the United States, including foreign national Anthropic employees. The net effect of this order is that we must abruptly disable Fable 5 and Mythos 5 for all our customers to ensure compliance. Access to all other Claude models is not affected. We apologize for this disruption to our customers. We believe this is a misunderstanding and are working to restore access as soon as possible. Read our full statement: anthropic.com/news/fable-myt…

WOW Fable one-shotted a SimCity clone that's actually quite deep and impressive. Play it here: patient-quail-a4sx.here.now/

Now, Fable 5 one-shotted a SimCity clone.

Like most people, I tried out Claude Fable 5 to 1 shot a game and WOW does it take the 👑 After a single prompt: "Create a sim city 4 clone that is browser based" I had a full feature game with working mechanics and about 2-3 more prompts to update the color scheme.

Introducing Claude Fable 5: a Mythos-class model that we’ve made safe for general use. Its capabilities exceed those of any model we’ve ever made generally available.

Introducing Claude Opus 4.8: it builds on Opus 4.7 with sharper judgment, more honesty about its own progress, and the ability to work independently for longer than its predecessors. Available today at the same price.

Claude Code 2.1.139 has been released. 50 CLI changes, 1 system prompt change Highlights: • Added /goal command to run tasks across turns until a set completion condition, with live elapsed/turns/tokens • System prompt compaction is now silent (no trimming alert), which may obscure that prompts were trimmed • Compaction prompt asks model to preserve sensitive instructions, reducing loss of user intent during trimming Full details are in thread ↓

New in Claude Code: agent view. One list of all your sessions, available today as a research preview.

Claude Security is now in public beta for Claude Enterprise customers. Claude scans your codebase for vulnerabilities, validates each finding to cut false positives, and suggests patches you can review and approve.

Introducing Claude Design by Anthropic Labs: make prototypes, slides, and one-pagers by talking to Claude. Powered by Claude Opus 4.7, our most capable vision model. Available in research preview on the Pro, Max, Team, and Enterprise plans, rolling out throughout the day.