LaunchAI ModelsOctober 23, 2026

Moonshot AI releases Kimi K3.1 Pro, a 2.8T-param open-weight model

Read original source →marktechpost.com

Kimi K3.1 Pro packs 2.8T total / 104B active parameters (MoE) with a 1M-token context window, available now via Kimi API at cheaper pricing than K3. Moonshot self-reports 51.7 on SWE-Marathon (ahead of Claude Opus 5.5's 46.3) but 38.1 on Terminal-Bench Science vs 68.1 for GPT-6 Astra. Open weights are expected in November 2026.

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