Mistral Small 4 vs Sonar Reasoning Pro
Mistral AI vs Perplexity — benchmarks, pricing, and capabilities side by side.
- •Sonar Reasoning Pro has the higher intelligence index (95.7 vs 76.9)
- •Mistral Small 4 is cheaper ($0.15 vs $2.00 per 1M input)
- •Mistral Small 4 has a larger context window (262K)
| Mistral Small 4 | Sonar Reasoning Pro | |
|---|---|---|
| Intelligence index | 76.9 | 95.7 |
| Developer | Mistral AI | Perplexity |
| Type | Multimodal | Multimodal |
| Access | Open weights | API only |
| Context window | 262,144 tokens | 128,000 tokens |
| Input price | $0.15 / 1M | $2.00 / 1M |
| Output price | $0.60 / 1M | $8.00 / 1M |
| Speed | 145 tok/s | — |
| Released | March 16, 2026 | March 7, 2025 |
| Parameters | — | — |
| Input modalities | Text, Image | Text, Image |
| Output modalities | Text | Text |