Grok 4.3 vs Phi-3
xAI vs Microsoft — benchmarks, pricing, and capabilities side by side.
- •Grok 4.3 has a larger context window (1M)
| Grok 4.3 | Phi-3 | |
|---|---|---|
| Intelligence index | 90.1 | — |
| Developer | xAI | Microsoft |
| Type | LLM | LLM |
| Access | API only | Open weights |
| Context window | 1,000,000 tokens | 128,000 tokens |
| Input price | $1.25 / 1M | — |
| Output price | $2.50 / 1M | — |
| Speed | 88 tok/s | — |
| Released | May 6, 2026 | April 23, 2024 |
| Parameters | — | 3.8B |
| Input modalities | Text, Image | Text |
| Output modalities | Text | Text |