Start with the OpenAI-compatible endpoint

NextModel is an AI API cost control gateway that keeps the calling interface familiar. Set the SDK base URL to https://api.nextmodel.app/v1, use a NextModel API key, and choose a model ID from the catalog.

Python
from openai import OpenAI

client = OpenAI(
    api_key="YOUR_API_KEY",
    base_url="https://api.nextmodel.app/v1"
)

resp = client.chat.completions.create(
    model="doubao-seed-2-0-mini",
    messages=[{"role": "user", "content": "Hello from NextModel"}]
)

print(resp.choices[0].message.content)
Node
import OpenAI from "openai";

const client = new OpenAI({
  apiKey: process.env.NEXTMODEL_API_KEY,
  baseURL: "https://api.nextmodel.app/v1",
});

const response = await client.chat.completions.create({
  model: "doubao-seed-2-0-mini",
  messages: [{ role: "user", content: "Hello from NextModel" }],
});

console.log(response.choices[0].message.content);
curl
curl https://api.nextmodel.app/v1/chat/completions \
  -H "Authorization: Bearer $NEXTMODEL_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "doubao-seed-2-0-mini",
    "messages": [{"role": "user", "content": "Hello from NextModel"}]
  }'

What changes from an existing OpenAI project?

Most migrations change three fields: the base URL, the API key, and the model name. Your application can keep the same chat-completions shape while comparing model price, capability, and provider source.

base_urlhttps://api.nextmodel.app/v1
endpoint/chat/completions
authAuthorization: Bearer YOUR_API_KEY
modelUse a NextModel catalog ID such as doubao-seed-2-0-mini