Moonshot AIPaidOperational
Kimi K2 Instruct
API model name: kimi-k2-instruct
Kimi K2 Instruct is Moonshot AI's chat model, served on the Api.Airforce unified API. It has a 131K-token context window. Capabilities include Tool calling, Prompt caching. It is priced at $0.69 per million input tokens and $2.77 per million output tokens. That is below the provider's $0.59 official input rate. Knowledge cutoff: 2024-12. Access it through the OpenAI-compatible API with one key, alongside 100+ other models on Api.Airforce.
Pricing
Api.Airforce price vs. the provider's official rate.
Specifications
- Provider
- Moonshot AI
- Type
- chat model
- Context window
- 131K tokens
- Max output
- 8K tokens
- Knowledge cutoff
- 2024-12
- Input
- text
- Output
- text
- Prompt caching
- Supported
Capabilities
Tool callingPrompt cachingStreaming
What is Kimi K2 Instruct used for?
- Chatbots & assistants — conversational AI, drafting, summarizing and Q&A.
- Agents & automation — function calling and tool use for multi-step workflows.
- Real-time experiences — stream tokens for responsive chat and apps.
Kimi K2 Instruct vs. similar models
| Model | Intelligence | Context | Input / 1M | Output / 1M |
|---|---|---|---|---|
| Kimi K2 Instruct | — | 131K | $0.69 | $2.77 |
| Kimi K2 | 12.7 | — | $0.53 | $2.08 |
| Kimi K2 | — | — | $0.60 | $4.15 |
| Kimi K2 Preview | — | — | $0.35 | $1.41 |
Prices are Api.Airforce pay-as-you-go rates per 1M tokens. Context is the maximum input length.
Related models
Kimi K2Moonshot AI · $0.53 / 1MKimi K2Moonshot AI · $0.60 / 1MKimi K2 PreviewMoonshot AI · $0.35 / 1MKimi K2 TurboMoonshot AI · $2.09 / 1MKimi K2.5Moonshot AI · $0.58 / 1MKimi K2.6Moonshot AI · $0.85 / 1MKimi K2.7Moonshot AI · $0.85 / 1MKimi K2.7 CodeMoonshot AI · FreeKimi K3Moonshot AI · $2.85 / 1MMoonshot V1 128kMoonshot AI · $4.70 / 1MMoonshot V1 128k VisionMoonshot AI · $2.60 / 1MMoonshot V1 32kMoonshot AI · $1.88 / 1M
Kimi K2 Instruct — frequently asked questions
- How much does Kimi K2 Instruct cost?
- Kimi K2 Instruct is billed pay-as-you-go at $0.69 per 1M input tokens and $2.77 per 1M output tokens. There is no subscription — you only pay for what you use.
- What is the context window of Kimi K2 Instruct?
- Kimi K2 Instruct supports a context window of up to 131K tokens. It can return up to 8K tokens in a single response.
- What can Kimi K2 Instruct do?
- Kimi K2 Instruct supports Tool calling, Prompt caching.
- Is Kimi K2 Instruct free to use?
- Kimi K2 Instruct is a paid, pay-as-you-go model — no subscription, you are only charged for usage.
- How do I use Kimi K2 Instruct via the API?
- Kimi K2 Instruct is OpenAI-compatible. Point any OpenAI SDK at https://api.airforce/v1 and pass the model ID kimi-k2-instruct with your Api.Airforce API key.
- Who makes Kimi K2 Instruct?
- Kimi K2 Instruct is Moonshot AI's chat model, served through the unified Api.Airforce gateway alongside 100+ other models.
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Use Kimi K2 Instruct via the API
OpenAI-compatible — point any OpenAI SDK at https://api.airforce/v1 and pass kimi-k2-instruct as the model.
cURL
curl https://api.airforce/v1/chat/completions \
-H "Authorization: Bearer $AIRFORCE_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"model": "kimi-k2-instruct",
"messages": [{ "role": "user", "content": "Hello!" }]
}'Python
from openai import OpenAI
client = OpenAI(base_url="https://api.airforce/v1", api_key="$AIRFORCE_API_KEY")
r = client.chat.completions.create(
model="kimi-k2-instruct",
messages=[{"role": "user", "content": "Hello!"}],
)
print(r.choices[0].message.content)JavaScript
import OpenAI from "openai";
const client = new OpenAI({ baseURL: "https://api.airforce/v1", apiKey: process.env.AIRFORCE_API_KEY });
const r = await client.chat.completions.create({
model: "kimi-k2-instruct",
messages: [{ role: "user", content: "Hello!" }],
});
console.log(r.choices[0].message.content);