Grok 4.6 API

xAI's large language model for text generation and reasoning, with a 500K token context window and prompt caching support.
Context
500K tokens
Input
$2.6 / 1M
Output
$7.8 / 1M
Released
Aug 7, 2026

How to use Grok 4.6 API

Install any OpenAI-compatible SDK, point it at api.aimlapi.com/v1, and set the model to x-ai/grok-4-6.
import requests

r = requests.post(
    "https://api.aimlapi.com/v1/chat/completions",
    headers={"Authorization": "Bearer " + AIMLAPI_KEY},
    json={
      "model": "x-ai/grok-4-6",
      "messages": [
        {
          "role": "user",
          "content": "Hello!"
        }
      ]
    },
)
print(r.json())
const r = await fetch("https://api.aimlapi.com/v1/chat/completions", {
  method: "POST",
  headers: {
    Authorization: `Bearer ${process.env.AIMLAPI_KEY}`,
    "Content-Type": "application/json",
  },
  body: JSON.stringify({
    "model": "x-ai/grok-4-6",
    "messages": [
      {
        "role": "user",
        "content": "Hello!"
      }
    ]
  }),
});
console.log(await r.json());
curl -X POST https://api.aimlapi.com/v1/chat/completions \
  -H "Authorization: Bearer $AIMLAPI_KEY" \
  -H "Content-Type: application/json" \
  -d '{"model":"x-ai/grok-4-6","messages":[{"role":"user","content":"Hello!"}]}'

OpenAI-compatible — swap the base URL and it works with your existing SDK.

Grok 4.6 API Pricing

TypePrice
Input
$2.6 / 1M tokens
Output
$7.8 / 1M tokens

Tiered pricing: $2.6/$7.8 per 1M tokens up to 200K context, $5.2/$15.6 above 200K. Cached input: $0.65/1M (≤200K) or $1.3/1M (>200K).

Grok 4.6 vs other models

ModelInputOutputContextBest for
Grok 4.6
This page
$2.6 / 1M
$7.8 / 1M
500K tokens
Reasoning + agents with long context
$2.6 / 1M
$7.8 / 1M
500K tokens
Reasoning + agents with long context
$6.5 / 1M
$39 / 1M
1.05M tokens
Reasoning + agents
$6.5 / 1M
$32.5 / 1M
1M tokens
Chat + assistants

Start building with Grok 4.6

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