Kimi K2 API

moonshotai/kimi-k2
Kimi K2 0711 on AIMLAPI.
Context
131K tokens
Input
$0.783978 / 1M tokens
Output
$3.16342 / 1M tokens

How to use Kimi K2 API

Install any OpenAI-compatible SDK, point it at api.aimlapi.com/v1, and set the model to moonshotai/kimi-k2.
import requests

r = requests.post(
    "https://api.aimlapi.com/v1/chat/completions",
    headers={"Authorization": "Bearer " + AIMLAPI_KEY},
    json={
      "model": "moonshotai/kimi-k2",
      "messages": [
        {
          "role": "user",
          "content": "Hello!"
        }
      ]
    },
)
print(r.json())
const r = await fetch("https://api.aimlapi.com/v1/chat/completions", {
  method: "POST",
  headers: {
    Authorization: `Bearer ${process.env.AIMLAPI_KEY}`,
    "Content-Type": "application/json",
  },
  body: JSON.stringify({
    "model": "moonshotai/kimi-k2",
    "messages": [
      {
        "role": "user",
        "content": "Hello!"
      }
    ]
  }),
});
console.log(await r.json());
curl -X POST https://api.aimlapi.com/v1/chat/completions \
  -H "Authorization: Bearer $AIMLAPI_KEY" \
  -H "Content-Type: application/json" \
  -d '{"model":"moonshotai/kimi-k2","messages":[{"role":"user","content":"Hello!"}]}'

OpenAI-compatible — swap the base URL and it works with your existing SDK.

Kimi K2 API Pricing

TypePrice
Input
$0.783978 / 1M tokens
Output
$3.16342 / 1M tokens

Kimi K2 Benchmarks

BenchmarkScoreWhat it measuresSourceRetrieved
Intelligence
22
Composite score across standardised reasoning, knowledge and problem-solving evaluations, measured independently by Artificial AnalysisSourceSeptember 12, 2026
Math
94.7
Composite score across standardised mathematics evaluations, measured independently by Artificial AnalysisSourceSeptember 12, 2026

Kimi K2 vs other models

ModelInputOutputContextBest for
Kimi K2
This page
$0.783978 / 1M tokens
$3.16342 / 1M tokens
131K tokens
Reasoning + agents
$6.5 / 1M tokens
$39 / 1M tokens
1.05M tokens
Reasoning + agents
$2.6 / 1M tokens
$13 / 1M tokens
1M tokens
Balanced coding + agents
$3.9 / 1M tokens
$19.5 / 1M tokens
1M tokens
Long-context, multimodal & agentic workflows
$0.65 / 1M tokens
$3.9 / 1M tokens
1.05M tokens
Reasoning + agents

Frequently asked questions

Kimi K2 has a 131,072 tokens context window and can return up to 100,352 tokens.

Kimi K2 takes image, text as input and returns text.

Use moonshotai/kimi-k2 as the model id. Requests go to https://api.aimlapi.com/v1/chat/completions.

Kimi K2 is priced at input $0.783978 / 1M tokens, output $3.16342 / 1M tokens.

Yes, Kimi K2 can stream responses as they are generated.

Yes, Kimi K2 accepts image input alongside text.

Kimi K2 was built by Moonshot AI.

Yes, Kimi K2 includes reasoning as both a feature and a capability.

Yes, it supports function calling, tool use, and parallel tool calls.

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