Gemini 1.5 Pro vs Grok-4 Heavy
Google vs xAI — benchmarks, pricing, and capabilities side by side.
- •Grok-4 Heavy has the higher intelligence index (89.3 vs 67.3)
| Gemini 1.5 Pro | Grok-4 Heavy | |
|---|---|---|
| Intelligence index | 67.3 | 89.3 |
| Developer | xAI | |
| Type | Multimodal | Multimodal |
| Access | API only | API only |
| Context window | 2,000,000 tokens | — |
| Input price | $1.25 / 1M | — |
| Output price | $5.00 / 1M | — |
| Speed | 85 tok/s | — |
| Released | February 15, 2024 | July 9, 2025 |
| Parameters | — | — |
| Input modalities | Text, Image, Audio, Video | — |
| Output modalities | Text | — |
Shared benchmarks
Gemini 1.5 Pro
Grok-4 Heavy
GPQA Diamond
59.1
88.4
Humanity’s Last Exam
4.9
50.7
LiveCodeBench
31.6
79.4