Gemini 2.5 Flash Lite 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 57)
| Gemini 2.5 Flash Lite | Grok-4 Heavy | |
|---|---|---|
| Intelligence index | 57 | 89.3 |
| Developer | xAI | |
| Type | Multimodal | Multimodal |
| Access | API only | API only |
| Context window | 1,048,576 tokens | — |
| Input price | $0.10 / 1M | — |
| Output price | $0.40 / 1M | — |
| Speed | 6 tok/s | — |
| Released | July 22, 2025 | July 9, 2025 |
| Parameters | — | — |
| Input modalities | Text, Image, Audio, Video | — |
| Output modalities | Text | — |
Shared benchmarks
Gemini 2.5 Flash Lite
Grok-4 Heavy
AIME 2025
49.8
100
GPQA Diamond
64.6
88.4
Humanity’s Last Exam
5.1
50.7
LiveCodeBench
33.7
79.4