GLM 4.6V vs Grok-4 Heavy
Zhipu AI vs xAI — benchmarks, pricing, and capabilities side by side.
- •Grok-4 Heavy has the higher intelligence index (89.3 vs 69.6)
| GLM 4.6V | Grok-4 Heavy | |
|---|---|---|
| Intelligence index | 69.6 | 89.3 |
| Developer | Zhipu AI | xAI |
| Type | Multimodal | Multimodal |
| Access | Open weights | API only |
| Context window | 131,072 tokens | — |
| Input price | $0.30 / 1M | — |
| Output price | $0.90 / 1M | — |
| Speed | 44 tok/s | — |
| Released | December 8, 2025 | July 9, 2025 |
| Parameters | — | — |
| Input modalities | Image, Text, Video | — |
| Output modalities | Text | — |
Shared benchmarks
GLM 4.6V
Grok-4 Heavy
AIME 2025
85.3
100
GPQA Diamond
71.9
88.4
Humanity’s Last Exam
8.9
50.7
LiveCodeBench
41.1
79.4