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Moonshot AI · Released Jul 11, 2025

Kimi K2 Instruct

Non-thinking Kimi K2 MoE instruction model for coding and tool-using agents.

  • Open weights
  • Tool calling
Capability
139.9ECI · #112 of 165
Input
$0.57per 1M tokens
Output
$2.30per 1M tokens
Context
131K33K max output
Pricing

What it costs

Input
$0.57per million tokens
Output
$2.30per million tokens
Blended (3:1)
$1.00pricier than 60% of priced models

Typical monthly bills

Monthly usageEstimated cost
Side project2M input + 0.5M output tokens$2.29
Team assistant25M input + 5M output tokens$25.75
Production app250M input + 50M output tokens$257.50

Median of 11 paid API providers on models.dev.

Capability

Independent benchmarks

139.9Epoch Capabilities Index
#112 of 165 scored models
88Median 146169

The shaded band is Epoch AI’s confidence range (136.3–141.6); the tick marks the median scored model.

Scores from Epoch AI, run independently of Moonshot AI.

Specifications

The details

Lab
Moonshot AI
Released
Jul 11, 2025
Context window
131,072 tokens
Max output
32,768 tokens
Inputs
Text
Output
Text
Reasoning
No
Tool calling
Yes
Structured output
No
Availability
11 API providerslisted on models.dev
Same lab

More from Moonshot AI

Questions

About Kimi K2 Instruct

How much does Kimi K2 Instruct cost?

Kimi K2 Instruct costs $0.57 input / $2.30 output per million tokens (median across 11 API providers). At a 3:1 input-to-output mix that is $1.00 per million tokens, more expensive than 60% of the 445 priced models we track.

What is the context window of Kimi K2 Instruct?

Kimi K2 Instruct accepts up to 131,072 tokens per request and can write up to 32,768 tokens in one response.

How good is Kimi K2 Instruct?

Epoch AI gives Kimi K2 Instruct a Capabilities Index score of 139.9 (likely range 136.3–141.6), ranking it #112 of 165 models Epoch has scored.

Is Kimi K2 Instruct open source?

Yes. Moonshot AI publishes the weights under the Modified MIT licence, so it can be downloaded and self-hosted.

What inputs does Kimi K2 Instruct support?

Kimi K2 Instruct accepts text and replies in text. It is not a dedicated reasoning model, supports tool calling.

When was Kimi K2 Instruct released?

Moonshot AI released Kimi K2 Instruct on Jul 11, 2025.

What are the best alternatives to Kimi K2 Instruct?

The closest current models from other labs on capability, price and release date are Gemini 2.5 Flash (Google, ECI 140.6, $0.30 / $2.50), DeepSeek R1 0528 (DeepSeek, ECI 141.2, $0.512 / $2.19), Qwen3 235B-A22B Thinking 2507 (Alibaba (Qwen), ECI 143.8, $0.30 / $2.90) and GLM-4.7 (Z.ai (Zhipu), ECI 143.7, $0.60 / $2.20).