Swap from OpenAI to Kimi K2.6 in one line

Kimi K2.6 is Moonshot's frontier open agent model — 256K context, native tool calling, vision input. The Anthropic Sonnet-class output quality at a fraction of the cost.

AIgateway hosts it behind an OpenAI-compatible endpoint. So instead of installing a Moonshot SDK, integrating their auth flow, or porting your tool-call schema, you change one line in your existing OpenAI SDK code.

Set the base URL, swap the model

The only difference from a normal OpenAI client is the base_url and the model slug. Streaming, tool calling, vision, JSON mode all work the same.

from openai import OpenAI

client = OpenAI(
    base_url="https://api.aigateway.sh/v1",
    api_key="sk-aig-...",
)

stream = client.chat.completions.create(
    model="moonshot/kimi-k2.6",
    messages=[
        {"role": "system", "content": "You are a research planner."},
        {"role": "user", "content": "Plan a 4-step research agent."},
    ],
    tools=my_tools,
    stream=True,
)

for chunk in stream:
    print(chunk.choices[0].delta.content or "", end="")

TypeScript

Same swap on the JS side — change the baseURL, change the model slug.

import OpenAI from "openai";

const client = new OpenAI({
  baseURL: "https://api.aigateway.sh/v1",
  apiKey: process.env.AIGATEWAY_API_KEY,
});

const stream = await client.chat.completions.create({
  model: "moonshot/kimi-k2.6",
  messages: [{ role: "user", content: "hello" }],
  stream: true,
});

Pricing + the newer pick

K2.6 is a full-catalog model: it opens once you top up any amount, billed at pass-through + 5% with no monthly or seat fee. The $5 signup credit covers a curated shortlist where the Moonshot pick is now the newer Kimi K2.7 Code — see the swap-openai-to-kimi-k2.7-code guide if you want the headline model on free credit.

Get your key at aigateway.sh/signin and use the snippet above. If you want to see how it stacks against Opus 4.7 or GPT-5.4 on your own data, run an eval — point your dataset at all three and pick the winner.

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