Grok 4.1 vs Sonar Reasoning Pro
xAI vs Perplexity — benchmarks, pricing, and capabilities side by side.
- •Grok 4.1 has a larger context window (256K)
| Grok 4.1 | Sonar Reasoning Pro | |
|---|---|---|
| Intelligence index | — | 95.7 |
| Developer | xAI | Perplexity |
| Type | LLM | Multimodal |
| Access | API only | API only |
| Context window | 256,000 tokens | 128,000 tokens |
| Input price | — | $2.00 / 1M |
| Output price | — | $8.00 / 1M |
| Speed | — | — |
| Released | November 17, 2025 | March 7, 2025 |
| Parameters | — | — |
| Input modalities | Text, Image | Text, Image |
| Output modalities | Text | Text |