INTELLECT-3 vs Sonar Reasoning Pro
Prime Intellect vs Perplexity — benchmarks, pricing, and capabilities side by side.
- •Sonar Reasoning Pro has the higher intelligence index (95.7 vs 81)
- •INTELLECT-3 is cheaper ($0.20 vs $2.00 per 1M input)
- •INTELLECT-3 has a larger context window (131K)
| INTELLECT-3 | Sonar Reasoning Pro | |
|---|---|---|
| Intelligence index | 81 | 95.7 |
| Developer | Prime Intellect | Perplexity |
| Type | LLM | Multimodal |
| Access | Open weights | API only |
| Context window | 131,072 tokens | 128,000 tokens |
| Input price | $0.20 / 1M | $2.00 / 1M |
| Output price | $1.10 / 1M | $8.00 / 1M |
| Speed | — | — |
| Released | November 27, 2025 | March 7, 2025 |
| Parameters | — | — |
| Input modalities | Text | Text, Image |
| Output modalities | Text | Text |