xAI API pricing and price changes
7 xAI models we price today. Since Mar 26, 2024 we recorded 1 list-price changes on OpenRouter: 0 cuts and 1 increases.
xAI models
| Model | Chat answer | In / out per 1M | Released |
|---|---|---|---|
 Grok 4.7 | 0.96¢$9.58 / 1,000 | $2.00 / $6.00 | Sep 21, 2026 |
Grok 4.6 | 0.96¢$9.58 / 1,000 | $2.00 / $6.00 | Aug 12, 2026 |
Grok 4.5 | 0.96¢$9.58 / 1,000 | $2.00 / $6.00 | Jul 8, 2026 |
Grok Build 0.1 | 0.36¢$3.62 / 1,000 | $1.00 / $2.00 | May 20, 2026 |
Grok 4.3 | 0.45¢$4.53 / 1,000 | $1.25 / $2.50 | May 1, 2026 |
Grok 4.20 Multi-Agent | 0.45¢$4.53 / 1,000 | $1.25 / $2.50 | Mar 31, 2026 |
Grok 4.20 | 0.45¢$4.53 / 1,000 | $1.25 / $2.50 | Mar 31, 2026 |
Price change log
Changes of at least 5% in the OpenRouter list price, detected between weekly snapshots (Internet Archive copies of the public model list before October 2026, our daily pulls after). For open-weight models a change can mean a different cheapest host.
| Model | Change | Input | Output |
|---|---|---|---|
| Grok 4.7Sep 21, 2026 → Sep 29, 2026 | +25% | $1.60 → $2.00 | $4.80 → $6.00 |