Grok-4 Heavy vs Llama 4 Maverick
xAI vs Meta — benchmarks, pricing, and capabilities side by side.
- •Grok-4 Heavy has the higher intelligence index (89.3 vs 63.9)
| Grok-4 Heavy | Llama 4 Maverick | |
|---|---|---|
| Intelligence index | 89.3 | 63.9 |
| Developer | xAI | Meta |
| Type | Multimodal | Multimodal |
| Access | API only | Open weights |
| Context window | — | 1,048,576 tokens |
| Input price | — | $0.15 / 1M |
| Output price | — | $0.60 / 1M |
| Speed | — | 639 tok/s |
| Released | July 9, 2025 | April 5, 2025 |
| Parameters | — | 400B total / 17B active (MoE) |
| Input modalities | — | Text, Image |
| Output modalities | — | Text |
Shared benchmarks
Grok-4 Heavy
Llama 4 Maverick
AIME 2025
100
19.3
GPQA Diamond
88.4
69.8
Humanity’s Last Exam
50.7
4.8
LiveCodeBench
79.4
43.4