Grok 4.6 API Pricing & Monthly Cost Simulator
Verified 2026 unit economics for xAI Grok 4.6 (x-ai/grok-4.6): $2/1M uncached input, $0.5/1M cached prefix read, and $6/1M output across a 500,000-token context window (released 2026-08-12).
Uncached Input (/1M)
$2
Cached Prompt Read (/1M)
$0.5 (-75%)
Output Completion (/1M)
$6
50% Batch API (In / Out)
$1 / $3
Interactive 30-Day Monthly Spend Simulator
Live Unit-Cost & Prompt Cache Slider (Grok 4.6)
x-ai/grok-4.6
Estimated 30-day spend
$294.00/mo
Cost per 1,000 calls
$9.8000
Monthly savings vs 0% cache
$90.00/mo
Technical Limits & API Capabilities
Context window
500,000
Max output tokens
450,000
Workload tier
Frontier Flagship
Input modalities
text, image, file
Tool Calling: Yes
JSON Schema Strict: Yes
Reasoning Tokens: Supported
50% Batch API: Available
Same-Category 2026 Model Alternatives (Frontier Flagship)
| Model | Provider | Input / Cached ($/1M) | Output ($/1M) | Context / Max Out |
|---|---|---|---|---|
| Grok 4.6 | xAI | $2 / $0.5 | $6 | 500,000 / 450,000 |
| GLM 5.3 Prime | Z.ai / GLM | $2.8 / $0.56 | $8.8 | 1,000,000 / 131,072 |
| Qwen3.8 Max Prime | Qwen | $4 / $0.5 | $12 | 1,000,000 / 131,072 |
| Qwen3.8 Max (0902) | Qwen | $2 / $0.25 | $6 | 1,000,000 / 131,072 |
| Qwen3.8 2.4T A95B | Qwen | $2 / $0.25 | $6 | 1,048,576 / 131,072 |
Head-to-Head Matchups Featuring Grok 4.6
- Claude Opus 5.5 vs Claude Sonnet 5.5 — $4 vs $2 / 1M
- Claude Sonnet 5.5 vs Claude Haiku 5.5 — $2 vs $0.1 / 1M
- Claude Fable 5.2 vs Claude Opus 5.5 — $8 vs $4 / 1M
Frequently Asked Questions
How much does Grok 4.6 cost per 1 million tokens in 2026?
Grok 4.6 by xAI is billed at $2 per 1M uncached input tokens, $0.5 per 1M cached input read tokens (75% cache discount), and $6 per 1M output tokens.
What are the context window and max output token limits for Grok 4.6?
Grok 4.6 supports a 500,000-token input context window and up to 450,000 completion output tokens per request, accepting text, image, file inputs.
Does Grok 4.6 support strict JSON Schema outputs, tool calling, and Batch API?
Grok 4.6 capability profile: tool calling = Supported, strict JSON Schema structured outputs = Supported, reasoning mode = Supported, and 50% asynchronous Batch API = Supported.