❯ Kimi launches K3.1 Pro for extended tasks, with full weights due by November 4

Two versions reach apps and APIsMoonshot launched Kimi K3.1 Pro and a Highspeed version in its 3T-class model family, with a one-million-token context window, available through its web and mobile apps, Kimi Work, Kimi Code and API. The company says Highspeed runs two to three times faster and plans to release full weights by November 4.

More investment in post-trainingK3.1 Pro builds on K3 with expanded cross-domain reinforcement learning and changes to long-context inference, sandboxes, scheduling and environment checks. Company demonstrations cover engineering, games, 3D modeling and financial research. Its release reports 65.7% on Terminal-Bench 4.0; comparisons should be read in the context of that published evaluation.

The product focuses on completed workA larger context lets the model receive more project material at once. Its practical value depends on connecting retrieval, tool use, checking and revision into complete workflows. Bringing the model to coding, office and API products makes those workflows available in existing interfaces. Independent deployment and further testing will become possible after the weights are published.

▮ SIGNALModel releases are increasingly tied to coding, office work and tool execution, where long context must translate into completed tasks.