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AI News · 3 min read

Anthropic Releases Claude Fable 5.2 and Mythos 5.2 — 1,000 Agents Built a Working OS in 8 Days

Anthropic's new Fable 5.2 coordinated more than 1,000 AI sub-agents to build a fully functional operating system from scratch in eight days. The company also disclosed that Claude now writes over 90% of its own codebase changes.

1d ago

AI News · 3 min read

Anthropic's Fable 5.1 Tops Global Coding Benchmark at 38.8%, Ahead of GPT-6 Astra

Anthropic's Fable 5.1 now leads the SWE-bench coding benchmark at 38.8% — the first time Anthropic has held the top coding position against OpenAI and Google.

Sep 14

Government & Policy · 4 min read

U.S. Government Forces Anthropic to Pull Fable 5 and Mythos 5 Offline Worldwide

The Commerce Department ordered Anthropic to suspend Claude Fable 5 and Mythos 5 for all foreign nationals after a claimed jailbreak alarmed officials — Anthropic chose full global shutdown over selective compliance.

Jun 14

Science & Research · 2 min read

Moonshot AI Open-Sources Kimi K2.7-Code — A 1-Trillion-Parameter Model Up to 12x Cheaper Than GPT-5.5

Moonshot AI released Kimi K2.7-Code as a fully open-source 1-trillion-parameter coding model at $0.95 per million input tokens — up to 12x cheaper than GPT-5.5 and Claude Fable 5.

Jun 14

Business & Enterprise · 2 min read

Anthropic Releases Claude Fable 5 — Its First Public Mythos-Class Model

Anthropic today released Claude Fable 5, the first publicly available Mythos-class model, priced at $10/$50 per million tokens — less than half the Mythos Preview rate — and bundled free into paid plans through June 22.

Jun 10