DeepSeek-V4-Flash vs Sonar Reasoning Pro
DeepSeek vs Perplexity — benchmarks, pricing, and capabilities side by side.
- •Sonar Reasoning Pro has the higher intelligence index (95.7 vs 89.4)
- •DeepSeek-V4-Flash is cheaper ($0.10 vs $2.00 per 1M input)
- •DeepSeek-V4-Flash has a larger context window (1M)
| DeepSeek-V4-Flash | Sonar Reasoning Pro | |
|---|---|---|
| Intelligence index | 89.4 | 95.7 |
| Developer | DeepSeek | Perplexity |
| Type | LLM | Multimodal |
| Access | Open weights | API only |
| Context window | 1,048,576 tokens | 128,000 tokens |
| Input price | $0.10 / 1M | $2.00 / 1M |
| Output price | $0.20 / 1M | $8.00 / 1M |
| Speed | 109 tok/s | — |
| Released | April 24, 2026 | March 7, 2025 |
| Parameters | 284B (13B active) | — |
| Input modalities | Text | Text, Image |
| Output modalities | Text | Text |