GoKawiilMoonshot AI launches Kimi K3.1 Pro with 1-million-token context window
Moonshot AI released Kimi K3.1 Pro, an open-weight 3T-class model built on Kimi K3 with expanded post-training compute, offering a 1-million-token context window and gains in coding, 3D creation, financial research and agentic tasks. A faster variant, K3.1 Pro Highspeed, runs 2-3 times quicker and both are live now on Kimi.ai, Kimi Work, Kimi Code and the Kimi API, with full model weights due by November 4.
GoKawiil's interpretation of the reporting above, not reported fact.
The company's benchmark comparisons, including a Terminal-Bench 4.0 score of 65.7% versus rivals, suggest it is positioning K3.1 Pro as competitive with leading proprietary coding agents while remaining open-weight. Releasing a faster companion model alongside the flagship could reflect an effort to serve both high-capability and latency-sensitive use cases without fragmenting the product line.
- Kimi K3.1 Pro is an open-weight model with a 1-million-token context window.
- K3.1 Pro Highspeed offers 2-3x faster responses than the standard model.
- Full model weights are scheduled for release by November 4.
Source: kimi.ai, 2026-10-23
Published there as: “Kimi K3.1 Pro and K3.1 Pro Highspeed”
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