Claude Opus 5 released with Fast Mode (2.5x speed) at Opus 4.8 pricing, saving 50% on tokens

Claude Opus 4.8 beats Gemini Pro 5 by 11 points on Fable 5 benchmark

Production workshop series released covering capability curves, reliable agents, team workflows, and deployment at scale

Fable 5 returned online after being lobotomized by US policy.

Fable 5 forced offline after security flaws flagged by Amazon

Claude Opus 4.8 achieves 89% task completion and 2.5% harm rate on WorkBench, a dramatic improvement over GPT-4.

Fable 5 beta available for testing until June 22nd, then withdrawn from public access.

Public Mythos version codenamed 'Fable' released at 2x Opus pricing.

Claude Opus 4.8 adds dynamic workflows for agentic coding

Claude Opus 4.8 launched with dynamic workflows for Claude Code, enabling multi-step agentic coding.