# xAI Grok 4.6 API

> Grok 4.6 is xAI's frontier reasoning model for coding, agentic tasks and knowledge work, released in August 2026 as the successor to Grok 4.5. xAI focused it on long-running agents and ambitious interactive and visual projects, such as turning a broad product idea into a working first version and refining it over several rounds. It accepts text and image input with text output and configurable reasoning effort; Grok 4.7 succeeded it in September 2026.

Source: https://www.sandbase.ai/models/x-ai/grok-4.6
API reference: https://www.sandbase.ai/models/x-ai/grok-4.6/docs

## Facts

- Provider: xAI
- Type: Language model
- Model ID: `x-ai/grok-4.6`
- Price: $1.50 per 1M input tokens, $4.50 per 1M output tokens (25% off list price)
- Context window: 500K tokens, up to 500K output tokens
- Capabilities: chat, vision, reasoning, structured output, function calling
- Billing: pay per use from one SandBase balance; no provider account or subscription needed

## Call it

- Chat Completions API: `POST https://api.sandbase.ai/v1/chat/completions`

```bash
curl -X POST https://api.sandbase.ai/v1/chat/completions \
  -H "Authorization: Bearer $SANDBASE_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
  "model": "x-ai/grok-4.6",
  "messages": [
    {
      "role": "user",
      "content": "Hello"
    }
  ],
  "max_tokens": 2048
}'
```

## FAQ

### How do I call xAI Grok 4.6 through SandBase?

Create a SandBase API key, then send requests with the model ID "x-ai/grok-4.6" to Chat Completions API (/v1/chat/completions) at https://api.sandbase.ai. The request examples on this page show the exact payload.

### How much does xAI Grok 4.6 cost?

$1.50 per 1M input tokens and $4.50 per 1M output tokens with the current 25% discount (list price $2 / $6), billed per request from your SandBase balance.

### What is the context window of xAI Grok 4.6?

500K tokens of context, with up to 500K output tokens per response.

### How does xAI Grok 4.6 score on benchmarks?

xAI Grok 4.6 scores 44.3 on the Artificial Analysis Intelligence Index (v4.3), ranking #14 of 83 models on SandBase; Coding Index 76.8, Agentic Index 53.0. Source: Artificial Analysis, measured as Grok 4.6 (High).

### Which features does xAI Grok 4.6 support?

xAI Grok 4.6 supports vision (image input), reasoning, function calling, structured output. See Specifications above for the full list.

### Do I need a separate xAI account?

No. One SandBase API key and balance gives you access to xAI Grok 4.6 and the other models in the catalog; you do not need to sign up with xAI separately.