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Daily editionWednesday, July 29, 2026

Download Kimi K3 and ditch Opus 4.8

By Wren Calloway·All issues

The lead

Moonshot AI's Kimi K3 Takes the Open-Weights Crown

Wren Calloway·The Daily

The closed-model moat is officially dead. Kimi K3 didn't just beat Opus 4.8; it proved that the frontier of AI belongs to open weights.

Moonshot AI has officially released Kimi K3, and the benchmarks are staggering. Independent validation confirms that this open-weights model outright outperforms Anthropic's Opus 4.8. By releasing the model weights and deep technical details, Moonshot hasn't just shipped a product; they have established Kimi K3 as the leading open-weights model globally.

Opus 4.8

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TL;DR

  • Moonshot AI's Kimi K3 just crushed Opus 4.8 to take the global open-weights crown.
  • NVIDIA launched a security alliance to protect AI agents across the entire tech stack.
  • Sam Altman went on a podcast and literally declared we have reached the singularity.
  • A Google search glitch accidentally exposed thousands of private Claude conversations.
  • A runtime creator is furious after 64 AI agents rewrote his codebase in 11 days.

From the blog

The rest of the field

From the editor

The closed-model moat didn't just dry up overnight; Moonshot AI just paved it over and built a parking lot on top of it.

Read the full edition

Previous edition: Anthropic guts OpenAI with Opus 5

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