Granite 4.1 8B vs Grok 4.20 0309 v2
IBM vs xAI — benchmarks, pricing, and capabilities side by side.
- •Grok 4.20 0309 v2 has the higher intelligence index (91.1 vs 43.3)
- •Granite 4.1 8B is cheaper ($0.05 vs $2.00 per 1M input)
- •Granite 4.1 8B is faster
| Granite 4.1 8B | Grok 4.20 0309 v2 | |
|---|---|---|
| Intelligence index | 43.3 | 91.1 |
| Developer | IBM | xAI |
| Type | LLM | LLM |
| Access | Open weights | — |
| Context window | 131,072 tokens | — |
| Input price | $0.05 / 1M | $2.00 / 1M |
| Output price | $0.10 / 1M | $6.00 / 1M |
| Speed | 133 tok/s | 105 tok/s |
| Released | April 30, 2026 | April 7, 2026 |
| Parameters | — | — |
| Input modalities | Text | — |
| Output modalities | Text | — |
Shared benchmarks
Granite 4.1 8B
Grok 4.20 0309 v2
GPQA Diamond
43.3
91.1
Humanity’s Last Exam
3.8
32.2