GPT-4.1 vs Grok-4 Heavy
OpenAI vs xAI — benchmarks, pricing, and capabilities side by side.
- •Grok-4 Heavy has the higher intelligence index (89.3 vs 63.8)
| GPT-4.1 | Grok-4 Heavy | |
|---|---|---|
| Intelligence index | 63.8 | 89.3 |
| Developer | OpenAI | xAI |
| Type | Multimodal | Multimodal |
| Access | API only | API only |
| Context window | 1,047,576 tokens | — |
| Input price | $2.00 / 1M | — |
| Output price | $8.00 / 1M | — |
| Speed | 100 tok/s | — |
| Released | April 14, 2025 | July 9, 2025 |
| Parameters | — | — |
| Input modalities | Text, Image | — |
| Output modalities | Text | — |
Shared benchmarks
GPT-4.1
Grok-4 Heavy
AIME 2025
46.4
100
GPQA Diamond
66.3
88.4
Humanity’s Last Exam
5.4
50.7
LiveCodeBench
45.7
79.4