Domestic large models have been upgraded frequently in the past week. Following the open source of GLM-5.1 and MiniMax 2.7, Kimi K2.6-code-preview of Dark Side of the Moon is also available. It is a large model with trillions of parameters specially optimized for AI programming. The official website states that it is already online.However, to experience this large model, you need Kimi’s membership plan, which starts at 39 yuan per month and can be used in Kimi Code.

However, the K2.6-code-preview large model is relatively low-key. There was not much publicity for the previous internal beta. Only when it was released in the past two days did I see anyone mentioning it. Kimi officials did not promote it with much fanfare. Even the official website has not yet seen any specific upgrades for this large model.
Judging from the internal beta feedback and introductions that people have participated in on the Internet, K2.6-code-preview is improved on the basis of K 2.5, a large model with trillions of parameters. The main optimization is still AI programming. The SWE-Bench Verified list score of K 2.5 is 76.8%, and LiveCodeBench is 85%.
The improvement direction of K2.6-code-preview is mainly the depth of reasoning, the quality of agent planning and the reliability of multi-step tool calls.Some internal testers said that the thinking chain has the style of Opus (this is so profound).

As for the specific level, there is a big guy Versun who has conducted his own programming ability evaluation.The score of K2.6-code-preview is 89, which is 6 points higher than K 2.5’s score of 83.However, there is still a gap between the previous top players.
Compared with other manufacturers who always state that they will catch up or surpass Opus 4.6 in their promotional materials, some netizens in K2.6-code-preview currently evaluate it as Sonnet 4.6 level, which is also very strong.

The reviews given by netizens who have used it are still good. The ability to follow instructions is not bad, and the ability is also good. Now combined with Kimi's Coding Plan package, it at least provides a powerful and cost-effective option for AI programming.