AI Newsletter

AI Newsletter

🤖 AI Agents Weekly: Kimi K3, Thinking Machines Inkling, Agentic Misalignment, Perplexity SPACE, Sunday ACT-2, GPT-Red, and More

Kimi K3, Thinking Machines Inkling, Agentic Misalignment, Perplexity SPACE, Sunday ACT-2, GPT-Red, and More

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elvis
Jul 18, 2026
∙ Paid

In today's issue:

  • Moonshot open-sources Kimi K3

  • Thinking Machines ships Inkling weights

  • Anthropic finds new agent misalignment

  • Perplexity opens SPACE agent runtime

  • Sunday Robotics unveils ACT-2

  • OpenAI launches GPT-Red red teamer

  • Meituan open-sources LongCat-2.0

  • schema harness saturates ARC-AGI-3

And all the top AI dev news, papers, and tools.



Top Stories

Moonshot Open-Sources Kimi K3

Kimi K3: Open Frontier Intelligence

Moonshot AI introduced Kimi K3, billed as the first open 3-trillion-class model, with weights due July 27.

  • Scale and architecture: A 2.8T-parameter Stable LatentMoE activating 16 of 896 experts, with a 1M-token context window and native vision in a single model.

  • New attention design: Kimi Delta Attention delivers up to 6.3x faster decoding in million-token contexts, and Attention Residuals add roughly 25% higher training efficiency at under 2% extra compute.

  • Agentic strength: Leads Terminal-Bench 2.1 and scores 67.3 on DeepSWE, with demos of autonomous kernel optimization, compiler development, and vision-in-the-loop coding.

  • Availability: Live via Kimi.com, Kimi Code, and API from about 0.30 dollars to 15 dollars per million tokens, with open weights following on July 27.

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