Kimi K3.1 Pro: Moonshot cuts prices, 1M context and open weights promised by November 4
In one sentence On October 23 (24 in China) Moonshot AI released Kimi K3.1 Pro, a post-trained Kimi K3 with a 1M-token context, 65.7% on Terminal-Bench 4.0 per the company and API pricing of 2/10 dollars per million tokens versus 3/15 for K3. Full weights are promised by November 4, license not yet stated.
Moonshot AI, the Chinese company behind the Kimi assistants, launched K3.1 Pro, the first model in the new K3.1 series. It is not a new architecture: it is Kimi K3 retrained with much more compute in the refinement stage, aiming to make it better at coding, using tools and handling long tasks.
A Highspeed version comes alongside, two to three times faster according to the company, at double the price. The standard model costs less than its predecessor: 2 dollars per million input tokens and 10 for output, versus 3 and 15 for K3. It also accepts images and video and always runs in reasoning mode.
The most interesting part for people who run models themselves: Moonshot promises to publish the full weights by November 4. For the open version it says it removed offensive cybersecurity data from training, so as not to freely release frontier attack capabilities.
Companies
Moonshot AI
Tools
Kimi K3.1 Pro, Kimi K3.1 Pro Highspeed, Kimi Code
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