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Moonshot unveils Kimi K3.1 Pro, a 3T-class open-weight model, with cyber data stripped from training

Moonshot's Kimi K3.1 Pro has a 1M-token context window, and the company says full weights arrive by Nov. 4. It lists 65.7% on Terminal-Bench 4.0 versus 66.4% for Claude Opus 5.5. Moonshot says it removed cyber-related data from training, and its internal xdev-bench-hard score fell to 81.0% from 90.5%. Benchmarks are Moonshot's own. License and pricing are not stated.

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Primary source

Kimikimi.ai/blog/kimi-k3-1-pro

Coverage · 7 articles, oldest first

Friday, October 23, 2026

  1. Kimi

    Kimi unveils K3.1 Pro, a 3T-class open-weight model with a 1M-token context window, and K3.1 Pro Highspeed, with full weights to be released by November 4

  2. Unite.AI

    unite.ai/moonshot-ai-releases-kimi-k3-1-pro-first-model-in-new-k3-1-series/

  3. Wccftech

    wccftech.com/kimi-k3-1-pro-is-now-the-strongest-model-out-of-china-cyber-data-stripped-from-its-training-but-that-barely-holds-its-potential-back/

  4. Artificial Analysis

    artificialanalysis.ai/models/kimi-k3-1-pro

Saturday, October 24, 2026

  1. Reuters

    reuters.com/technology/moonshot-curbs-hacking-ability-new-kimi-model-fears-grow-over-ai-powered-2026-10-24/

  2. Latent Space

    latent.space/p/ainews-kimi-31/

  3. Tech in Asia

    techinasia.com/news/moonshot-ai-launches-kimi-k31-pro-plans-openweight-release
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