AI Edge(@aiedge_):Claude Fable 5.2 is out: • 30% faster than Fable 5.1, and cheaper ($8/$40 per M tokens) • Beats Opus 5.5 on almost every benchmark • Matches Opus 5.5's best coding score at about half the cost • Built a bootable OS from scratch with 1,000+ subagents in 8 days • Formalized Fermat's Last Theorem in 30 hours • Solved two open black-hole physics problems • More than doubled GPT-6 Astra on robotics • 55% fewer false safety blocks • Live now on all platforms

2026.11.09 19:30

Claude Fable 5.2 is out: • 30% faster than Fable 5.1, and cheaper ($8/$40 per M tokens) • Beats Opus 5.5 on almost every benchmark • Matches Opus 5.5's best coding score at about half the cost • Built a bootable OS from scratch with 1,000+ subagents in 8 days • Formalized Fermat's Last Theorem in 30 hours • Solved two open black-hole physics problems • More than doubled GPT-6 Astra on robotics • 55% fewer false safety blocks • Live now on all platforms

Claude@claudeai

2026.11.09 18:57

Introducing Claude Fable 5.2 and Claude Mythos 5.2, designed to tackle the most daunting technical challenges. They’re capable collaborators on ambitious projects in many fields, and show improvements in areas like coding, reasoning, and vision.