Grok-4 Heavy vs Perceptron Mk1
xAI vs Perceptron — benchmarks, pricing, and capabilities side by side.
| Grok-4 Heavy | Perceptron Mk1 | |
|---|---|---|
| Intelligence index | 89.3 | — |
| Developer | xAI | Perceptron |
| Type | Multimodal | Multimodal |
| Access | API only | API only |
| Context window | — | 32,768 tokens |
| Input price | — | $0.15 / 1M |
| Output price | — | $1.50 / 1M |
| Speed | — | — |
| Released | July 9, 2025 | May 12, 2026 |
| Parameters | — | — |
| Input modalities | — | Text, Image, Video |
| Output modalities | — | Text |