Evening brief

Monday, July 20

1 people · 0 companies · 5 topics

TL;DR Fable 5 begins rolling into Max and Team Premium plans today at 50% of limits. Kimi K3 (2.8T params, #1 on Frontend Code Arena) shipped July 16 with open weights promised July 27. Gemini 3.5 Pro missed its July 17 target and is slipping into August.

Models & research

  • model-releases Moonshot AI released Kimi K3 on July 16: 2.8T-param MoE (896 experts, 16 active), 1M-token context, native multimodal. Debuted #1 on Frontend Code Arena (1679 Elo, past Fable 5), 88.3% Terminal-Bench 2.1, 91.2% BrowseComp. API live at $3/$15 per Mtok; open weights due July 27. simonw used it to revisit the pelican benchmark and noted the gap with US frontier models is closing fast. VentureBeat · Tom’s Hardware · simonwillison.net

  • model-releases Gemini 3.5 Pro missed its July 17 target. Still in limited Vertex AI preview with an August window now rumored. Google’s decision to scrap the 2.5 Pro base and rebuild from scratch continues to slip. TechTimes · coursiv.io

  • claude-code model-releases Fable 5 officially starts rolling into Max and Team Premium plans today (July 20) at 50% of limits. Pro and Team Standard users get a one-time $100 usage credit instead. Competitive pressure from GPT-5.6 Sol and Kimi K3 made the credits-only model impossible to hold. X/@claudeai · simonwillison.net

People

  • simonw on July 18: Fable 5 going permanent in subscriptions was forced by GPT-5.6 Sol and Kimi K3 landing within the same week. Anthropic had no credible path to credits-only at the frontier anymore. simonwillison.net

  • simonw linked on July 19: “AI Mania Is Eviscerating Global Decision-Making” – an essay arguing that AI hype is accelerating enterprise commitments that bypass normal deliberation and judgment. simonwillison.net

Tools & dev

  • agentic-ai CNBC confirmed July 17 that the White House has moved from observer to active gatekeeper on frontier model access: routing approvals through NSA-run classified benchmarking (June 2 executive order) and direct cabinet-level calls. Both Anthropic and OpenAI now route model launches through Washington. CNBC

OSS

  • bojieli/ai-agent-book is the #1 GitHub trending repo today (1,734 new stars): open-source Chinese-language book on AI agent design principles and engineering, by Pine AI chief scientist Li Bojie. GitHub

  • tirth8205/code-review-graph at 663 new stars today: local-first codebase intelligence graph designed for MCP and CLI coding tools. GitHub

  • MoonshotAI/kimi-cli at 410 stars today, continuing Kimi K3 launch momentum. GitHub

Other

  • China launched WAICO (World AI Cooperation Organisation) at WAIC on July 17: 29-nation bloc including Indonesia, Brazil, Russia, South Africa; no G7 members. Xi Jinping gave the keynote; UN Secretary-General Guterres attended. A direct institutional rival to the G7 AI governance framework. Al Jazeera · Eastern Herald

  • (Polymarket: 98% yes, $11M+ volume) “Which company has best AI model end of July?” is now at 98% Anthropic, up from 96% when noted July 16. Polymarket