SpaceXAI
Grok 4.5 API pricing
Grok 4.5 is SpaceXAI’s model on the API market, released 8 Jul 2026. Prices are per million tokens in USD, as last read from the price list.
$2.00Input / 1M
$6.00Output / 1M
500KContext
450KMax output
Specification
USD per million tokens- Provider
- SpaceXAI
- Model id
x-ai/grok-4.5- Input
- $2.00
- Output
- $6.00
- Cached input
- $0.30
- Context window
- 500K tokens
- Maximum output
- 450K tokens
- Takes
- text, image, file
- Returns
- text
- Tool use
- Yes
- Reasoning
- Yes
- Released
- 8 Jul 2026
- First tracked
- 17 Sept 2026
At $2.00 per million input tokens, Grok 4.5 is dearer than 259 of the 326 models on the price list.
Price changes
Tracked since 17 Sept 2026No price change has been recorded since tracking began on 17 Sept 2026. Prices are checked every six hours, and any change is listed here and on model changes.
More from SpaceXAI
Cheapest input first- Grok Build 0.1$1.00 in · $2.00 out
- Grok 4.3$1.25 in · $2.50 out
- Grok 4.20 Multi-Agent$1.25 in · $2.50 out
- Grok 4.20$1.25 in · $2.50 out
- Grok 4.6$2.00 in · $6.00 out
Prices and specifications come from OpenRouter’s catalogue, last read 17 Sept 2026. A provider’s own price may differ; how this is collected.