Grok-4 Heavy vs UI-TARS 7B
xAI vs ByteDance — benchmarks, pricing, and capabilities side by side.
| Grok-4 Heavy | UI-TARS 7B | |
|---|---|---|
| Intelligence index | 89.3 | — |
| Developer | xAI | ByteDance |
| Type | Multimodal | Multimodal |
| Access | API only | Open weights |
| Context window | — | 128,000 tokens |
| Input price | — | $0.10 / 1M |
| Output price | — | $0.20 / 1M |
| Speed | — | — |
| Released | July 9, 2025 | July 22, 2025 |
| Parameters | — | — |
| Input modalities | — | Image, Text |
| Output modalities | — | Text |