Grok 4.5
by xAI
· GROK 4 family · released Jul 25, 2026
Closed
Active
xAI's Grok 4.5 launched in July 2026, rounding out a cluster of flagship releases alongside Claude Sonnet 5 and GPT-5.6. Available via xAI's API.
No pricing recorded for this model yet.
Specifications
| Model type | Multimodal |
|---|---|
| Architecture | Unknown |
| Parameters | Not disclosed |
| Context window | Not disclosed tokens |
| Max output | Not disclosed tokens |
| Knowledge cutoff | Not disclosed |
| License | Proprietary |
| Modalities | Text input Image input Text output |
| Tags | Flagship Reasoning Tool use |
| End of life | Not disclosed |
| Last verified | Not disclosed |