Gemini 2.5 Flash Lite vs Sonar Reasoning Pro
Google vs Perplexity — benchmarks, pricing, and capabilities side by side.
- •Sonar Reasoning Pro has the higher intelligence index (95.7 vs 57)
- •Gemini 2.5 Flash Lite is cheaper ($0.10 vs $2.00 per 1M input)
- •Gemini 2.5 Flash Lite has a larger context window (1M)
| Gemini 2.5 Flash Lite | Sonar Reasoning Pro | |
|---|---|---|
| Intelligence index | 57 | 95.7 |
| Developer | Perplexity | |
| Type | Multimodal | Multimodal |
| Access | API only | API only |
| Context window | 1,048,576 tokens | 128,000 tokens |
| Input price | $0.10 / 1M | $2.00 / 1M |
| Output price | $0.40 / 1M | $8.00 / 1M |
| Speed | 6 tok/s | — |
| Released | July 22, 2025 | March 7, 2025 |
| Parameters | — | — |
| Input modalities | Text, Image, Audio, Video | Text, Image |
| Output modalities | Text | Text |
Shared benchmarks
Gemini 2.5 Flash Lite
Sonar Reasoning Pro
MATH-500
96.9
95.7