Grok 4.3

by xAI

xAI flagship reasoning model - 1M context, text+image (replaces grok-4.1-fast)

Parameters
Flagship
Context Length
1M
Category
chat
Available Serverless

Run queries immediately, pay only for usage

$1.31in|$2.63out

Per 1M Tokens

Try this modelView documentation

About this model

xAI flagship reasoning model - 1M context, text+image (replaces grok-4.1-fast)

Capabilities

Advanced reasoningVisionLong context (1M)Tool calling

Model Details

Provider
xAI
Model ID
grok-4.3
Parameters
Flagship
Context Length
1M tokens
Category
chat

API Usage

Use the DOS API to integrate Grok 4.3into your applications. Our API is compatible with OpenAI's client libraries for easy migration.

Model ID

grok-4.3

Python

python
from dos import DOS

client = DOS()

response = client.chat.completions.create(
    model="grok-4.3",
    messages=[
        {"role": "user", "content": "Hello, how are you?"}
    ]
)

print(response.choices[0].message.content)

cURL

bash
curl https://api.dos.ai/v1/chat/completions \
  -H "Authorization: Bearer $DOS_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "grok-4.3",
    "messages": [
      {"role": "user", "content": "Hello, how are you?"}
    ]
  }'

Node.js

javascript
import DOS from 'dos-ai';

const client = new DOS();

const response = await client.chat.completions.create({
  model: "grok-4.3",
  messages: [
    { role: "user", content: "Hello, how are you?" }
  ]
});

console.log(response.choices[0].message.content);