Grok-4 Heavy vs Nova Lite
xAI vs Amazon — benchmarks, pricing, and capabilities side by side.
- •Grok-4 Heavy has the higher intelligence index (89.3 vs 57.7)
| Grok-4 Heavy | Nova Lite | |
|---|---|---|
| Intelligence index | 89.3 | 57.7 |
| Developer | xAI | Amazon |
| Type | Multimodal | Multimodal |
| Access | API only | API only |
| Context window | — | 300,000 tokens |
| Input price | — | $0.06 / 1M |
| Output price | — | $0.24 / 1M |
| Speed | — | 100 tok/s |
| Released | July 9, 2025 | November 20, 2024 |
| Parameters | — | — |
| Input modalities | — | — |
| Output modalities | — | — |
Shared benchmarks
Grok-4 Heavy
Nova Lite
AIME 2025
100
7
GPQA Diamond
88.4
42
Humanity’s Last Exam
50.7
4.6
LiveCodeBench
79.4
16.7