Grok 4
fastrouter / x-ai/grok-4
Input price
$3
per 1M tokens
Output price
$15
per 1M tokens
Context
256K
tokens
Capabilities
✓ Reasoning✓ Tool calls— Image input— Open weights
| cache read | $0.75 |
| cache write | $15 |
| Context | 256,000 tokens |
| max output | 64,000 tokens |
| Released | 2025-07-09 |
| Data updated | 2025-07-09 |
Prices are official/data-source rates (per 1M tokens), not what relays actually charge — relay prices vary with discounts and group multipliers. See methodology.