Reka Flash 3 vs Sonar Reasoning Pro
Reka AI vs Perplexity — benchmarks, pricing, and capabilities side by side.
- •Sonar Reasoning Pro has the higher intelligence index (95.7 vs 56.2)
- •Reka Flash 3 is cheaper ($0.10 vs $2.00 per 1M input)
- •Sonar Reasoning Pro has a larger context window (128K)
| Reka Flash 3 | Sonar Reasoning Pro | |
|---|---|---|
| Intelligence index | 56.2 | 95.7 |
| Developer | Reka AI | Perplexity |
| Type | LLM | Multimodal |
| Access | Open weights | API only |
| Context window | 65,536 tokens | 128,000 tokens |
| Input price | $0.10 / 1M | $2.00 / 1M |
| Output price | $0.20 / 1M | $8.00 / 1M |
| Speed | 93 tok/s | — |
| Released | March 12, 2025 | March 7, 2025 |
| Parameters | — | — |
| Input modalities | Text | Text, Image |
| Output modalities | Text | Text |
Shared benchmarks
Reka Flash 3
Sonar Reasoning Pro
MATH-500
89.3
95.7