Quickstart

You don’t need to install anything to do your first inference. You only need your access token. DeepInfra gives you access to 100+ open-source models at the best prices available.

Step 1: Get your API key

Go to the Dashboard and create an API key (new to DeepInfra? See Signing In). Copy it when it is shown and export it, so the examples below can read it:

export DEEPINFRA_API_KEY=<your DeepInfra API key>

Step 2: Make your first API call

curl "https://api.deepinfra.com/v1/openai/chat/completions" \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer $DEEPINFRA_API_KEY" \
  -d '{
      "model": "deepseek-ai/DeepSeek-V4-Flash-0731",
      "messages": [
        {
          "role": "user",
          "content": "Hello!"
        }
      ]
    }'

import os

from openai import OpenAI

client = OpenAI(
    api_key=os.environ["DEEPINFRA_API_KEY"],
    base_url="https://api.deepinfra.com/v1/openai",
)

response = client.chat.completions.create(
    model="deepseek-ai/DeepSeek-V4-Flash-0731",
    messages=[{"role": "user", "content": "Hello!"}],
)
print(response.choices[0].message.content)

import OpenAI from "openai";

const openai = new OpenAI({
  apiKey: process.env.DEEPINFRA_API_KEY,
  baseURL: "https://api.deepinfra.com/v1/openai",
});

const response = await openai.chat.completions.create({
  model: "deepseek-ai/DeepSeek-V4-Flash-0731",
  messages: [{ role: "user", content: "Hello!" }],
});
console.log(response.choices[0].message.content);

The response looks like this:

{
    "id": "chatcmpl-guMTxWgpFf",
    "object": "chat.completion",
    "created": 1694623155,
    "model": "deepseek-ai/DeepSeek-V4-Flash-0731",
    "choices": [
        {
            "index": 0,
            "message": {
                "role": "assistant",
                "content": "Hello! It's nice to meet you. Is there something I can help you with?"
            },
            "finish_reason": "stop"
        }
    ],
    "usage": {
        "prompt_tokens": 15,
        "completion_tokens": 16,
        "total_tokens": 31,
        "estimated_cost": 0.0000268
    }
}

That’s it

You’re using the OpenAI Chat Completions API — the same interface you already know. The only changes are:

Base URL: https://api.deepinfra.com/v1/openai
API key: your DeepInfra token
Model: any model from our catalog

The official OpenAI Python and Node.js libraries work out of the box.

Install the SDK (optional)

pip install openai

npm install openai

Next steps

Chat Completions

Learn about the full chat completions API.

Streaming

Stream responses token by token.

Tool Calling

Give models access to external functions.

Model Catalog

Browse 100+ available models.

Getting Started

Chat Completions

More APIs

Batch API

Deploy Private Models

GPU Instances

Sandboxes

Hosted Agents

Integrations

API Features

Account & Security

Tutorials

Step 1: Get your API key

Step 2: Make your first API call

That’s it

Install the SDK (optional)

Next steps

Chat Completions

Streaming

Tool Calling

Model Catalog

​Step 1: Get your API key

​Step 2: Make your first API call

​That’s it

​Install the SDK (optional)

​Next steps

Chat Completions

Streaming

Tool Calling

Model Catalog

Step 1: Get your API key

Step 2: Make your first API call

That’s it

Install the SDK (optional)

Next steps