Kimi K2.5 pricing and specs

open weights

Earlier Kimi frontier model for long-context agents, coding, and multimodal work

50,71 ₽input / 1M$0.6
254 ₽output / 1M$3
262Kcontexttokens
262Kmax outputtokens

Kimi K2.5 price per 1M tokens

Type₽ / 1M$ / 1M
Input tokens50,71 ₽$0.6
Output tokens254 ₽$3
Cache read8,45 ₽$0.1

Prices in rubles as of 18.09.2026 at the CBR rate: 1 $ = 84.51 ₽.

Kimi K2.5 specs and limits

Context window
262K
Max output
262K
Input
text, image, video
Output
text
Family
kimi-k2
Released
2026-01-01
Updated
2026-01-01
Knowledge cutoff
2025-01

What Kimi K2.5 can do

  • Reasoning
  • Tool calling
  • Structured output
  • Attachments / files
  • Vision (images)
  • Temperature control
  • Open weights

Kimi K2.5 benchmarks

BenchmarkScoreMetric
SWE-Bench Verified70.8resolved
SWE-Atlas Codebase QnA13.1score
SWE-Atlas Refactoring20.95score
SWE-Atlas Test Writing25.77score

Model weights

Frequently asked questions

How much does the Kimi K2.5 API cost?

Input costs $0.6 per 1M tokens (50.71 ₽) and output costs $3 per 1M (254 ₽). Moonshot AI bills the prompt and the completion separately, so the price of a call depends on how long both are. Ruble figures use the Bank of Russia rate of 84.51 ₽ per dollar for September 2026.

How much do 1,000 Kimi K2.5 tokens cost?

List prices are quoted per 1M tokens, so 1,000 tokens cost a thousandth of that: divide $0.6 for input and $3 for output by 1,000. The same rates in rubles are 50.71 ₽ and 254 ₽ per 1M tokens. Both prompt tokens and completion tokens are billed.

How many tokens does Kimi K2.5 hold?

The Kimi K2.5 context window is 262K tokens (262,144). Everything shares that budget: the system prompt, the dialogue history, attached files and the answer the model writes. The figure comes from the Moonshot AI model card as of September 2026.

What are the Kimi K2.5 limits?

The context window is 262K tokens (262,144) and a single response is capped at 262K tokens, so longer output has to be generated in parts. Rate limits are set by Moonshot AI per account and depend on your plan rather than on the model, so they are not listed here.

How is the Kimi K2.5 price in rubles calculated?

Providers quote their tariffs in US dollars, so the ruble amounts here are a conversion at the official Bank of Russia rate of 84.51 ₽ per dollar. For Kimi K2.5 that gives 50.71 ₽ per 1M input tokens and 254 ₽ per 1M output tokens. When the rate moves, the ruble price moves with it.

How is Kimi K2.5 different from other Kimi models?

Kimi K2.5 belongs to the Kimi K2 family at Moonshot AI. Models in the Kimi line differ in context size, price per 1M tokens and supported capabilities, so compare them by the numbers on their cards rather than by the name. Every Kimi model is listed on the provider page.

Can Kimi K2.5 reason?

Yes, Kimi K2.5 declares a reasoning mode: it works through intermediate steps before it answers. Those steps add output tokens, so a call with a long reasoning chain costs more and takes longer than a plain completion. Capabilities declared for the model: reasoning, tool calling, image input, structured output.

What capabilities does Kimi K2.5 support?

The declared capabilities of Kimi K2.5 are: reasoning, tool calling, image input, structured output. It accepts text, images, video as input, and every attachment consumes tokens from the shared context window of 262K tokens. The list comes from the Moonshot AI model card and is refreshed with the catalog as of September 2026.

Does Kimi K2.5 have open weights?

Yes, Kimi K2.5 ships with open weights, so it can be downloaded and served on your own hardware instead of being used only through the Moonshot AI API. What you may do with it is set by the license shown on the card. Catalog prices cover hosted API access.

Other Moonshot AI models