Kimi K3
Kimi K3 is a language model from Moonshot AI. It is currently free at 1 provider with up to 1M tokens of context. The model understands images, supports step-by-step reasoning, is suited to coding, supports tool calling. Its weights are open, so it can also run locally.
- Developer
- Moonshot AI
- Context
- 1M tokens
- Type
- Text
- License
- Open weights
- Free since
- September 20, 2026
Where to use Kimi K3 for free
Each row is a separate free endpoint with its own limits.
Quick start
curl https://api.unorouter.com/v1/chat/completions \
-H "Authorization: Bearer $UNOROUTER_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"model": "kimi-k3:free",
"messages": [{"role": "user", "content": "Hello!"}]
}'from openai import OpenAI
client = OpenAI(
base_url="https://api.unorouter.com/v1",
api_key="YOUR_UNOROUTER_API_KEY",
)
reply = client.chat.completions.create(
model="kimi-k3:free",
messages=[{"role": "user", "content": "Hello!"}],
)
print(reply.choices[0].message.content)import OpenAI from "openai";
const client = new OpenAI({
baseURL: "https://api.unorouter.com/v1",
apiKey: process.env.UNOROUTER_API_KEY,
});
const reply = await client.chat.completions.create({
model: "kimi-k3:free",
messages: [{ role: "user", content: "Hello!" }],
});
console.log(reply.choices[0].message.content);Example for UnoRouter. Any OpenAI-compatible client works: Cursor, Cline, OpenCode, Open WebUI.
Benchmarks
This model is not on the Artificial Analysis leaderboard yet. We do not publish our own estimates.
Similar free models
FAQ
Is Kimi K3 free?
Yes. As of October 24, 2026, Kimi K3 is free at UnoRouter. Each provider has its own limits — see the table above.
What is the context window of Kimi K3?
The largest context among free routes is 1,000,000 tokens. Some providers cap it lower.
How do I call Kimi K3 via API?
Use any OpenAI-compatible client with base URL https://api.unorouter.com/v1, model ID kimi-k3:free, and a UnoRouter key.
Is Kimi K3 open-weight?
Yes, the weights are published — you can download and run it locally, for example with Ollama or LM Studio.