AI·
Claude Opus 5 nears Fable 5's frontier intelligence at half the price
Anthropic shipped Claude Opus 5 at the same $5/$25 per million tokens as Opus 4.8. It nears Fable 5's intelligence at half the cost, with new effort and fallback controls.
Product
Claude Mythos
RSSAnthropic's restricted cyber-focused model, accessible only through Project Glasswing. Not available in the consumer Claude app.
6 articles
First covered Apr 20, 2026, latest Jul 24, 2026
Policy·
The US lifted its export ban on Anthropic's Fable 5. The model returns Wednesday.
The Commerce Department cleared Claude Fable 5 and Mythos 5, ending an 18-day export-control freeze. Anthropic redeploys Fable 5 globally on Wednesday with tighter safeguards.
AI·
A Discord group guessed Anthropic's URL pattern and walked into Claude Mythos
Bloomberg reports a small group accessed Anthropic's locked-down Mythos model the same day it launched, using credentials from a third-party contractor and educated URL guessing.
AI·
Google is putting up to $40B into Anthropic. That's five days after Amazon's $5B.
Google committed $10B upfront and up to $40B total at a $350B valuation, plus five gigawatts of Google Cloud capacity. It's Anthropic's second nine-figure deal in a week.
Open Source·
Mozilla fixed 271 Firefox bugs that Claude Mythos found. Its own tests caught 22.
Firefox 150 shipped Monday with 271 security fixes from Anthropic's Project Glasswing. Mozilla CTO Bobby Holley says Mythos matches elite human researchers.
AI·
NSA is running Anthropic's Mythos. The Pentagon says Anthropic is a supply-chain risk.
Axios reports the NSA is using Anthropic's unreleased Mythos model even though the Defense Department has blacklisted Anthropic. One government, two positions.