Behind the Scenes Hardening Firefox with Claude Mythos Preview
Mozilla leveraged the Claude Mythos preview and advanced harnessing techniques to find and fix 423 Firefox security vulnerabilities in one month—a 20x increase over their average—marking a qualitative shift in AI security auditing from noise generation to high-value signal production.
Simon Willison · May 8, 2026
LlamaIndex Newsletter 2026-04-21
LlamaIndex launches ParseBench, the first document OCR benchmark for AI agents, alongside new parsing tools and benchmark results, marking a shift towards quantifiable document intelligence.
LlamaIndex Blog ·
May 22, 2026AnnouncementsProject Glasswing: An initial update
Anthropic's 'Project Glasswing', leveraging its latest AI model Mythos Preview, has helped partners discover over ten thousand high or critical-severity vulnerabilities in one month, shifting the core bottleneck in software security from 'finding vulnerabilities' to 'verifying and patching them'.
Anthropic News ·
Building a new enterprise AI services company with Blackstone, Hellman & Friedman, and Goldman Sachs
Anthropic, alongside Blackstone and Goldman Sachs, has formed a new company to provide deep customization and integration of Claude for mid-sized enterprises, signaling a new 'heavy delivery' phase in AI commercialization.
Anthropic News ·
Introducing Claude Design by Anthropic Labs
Anthropic launches Claude Design, an AI-powered collaborative design platform driven by Claude Opus 4.7, enabling designers to explore widely and non-designers to easily create professional visual work.
Anthropic News ·