Claude Opus 5.5: Fable-level performance at a lower price
Anthropic’s new model is 40% cheaper to run than its predecessor.
Claude Sonnet 5 closes the gap with Opus without the Opus price tag
Claude Sonnet 5 is smarter, more capable, and still cheaper than Opus.
Claude Opus 4.8: My AI coworker upgraded itself and I have notes
Claude is now four times less likely to gaslight me.
Your security tools found 847 problems. Now what?
Your security tools are lying to you.