Gemini 1.5 Flash 8B 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 48.4)
| Gemini 1.5 Flash 8B | Grok-4 Heavy | |
|---|---|---|
| Intelligence index | 48.4 | 89.3 |
| Developer | xAI | |
| Type | Multimodal | Multimodal |
| Access | API only | API only |
| Context window | 1,048,576 tokens | — |
| Input price | $0.07 / 1M | — |
| Output price | $0.30 / 1M | — |
| Speed | 150 tok/s | — |
| Released | March 15, 2024 | July 9, 2025 |
| Parameters | 8000000000 | — |
| Input modalities | — | — |
| Output modalities | — | — |
Shared benchmarks
Gemini 1.5 Flash 8B
Grok-4 Heavy
GPQA Diamond
38.4
88.4
Humanity’s Last Exam
4.5
50.7
LiveCodeBench
21.7
79.4