GLM-4.5 vs Sonar Reasoning Pro
Zhipu AI vs Perplexity — benchmarks, pricing, and capabilities side by side.
- •Sonar Reasoning Pro has the higher intelligence index (95.7 vs 73)
- •GLM-4.5 is cheaper ($0.60 vs $2.00 per 1M input)
- •GLM-4.5 has a larger context window (131K)
| GLM-4.5 | Sonar Reasoning Pro | |
|---|---|---|
| Intelligence index | 73 | 95.7 |
| Developer | Zhipu AI | Perplexity |
| Type | LLM | Multimodal |
| Access | Open weights | API only |
| Context window | 131,072 tokens | 128,000 tokens |
| Input price | $0.60 / 1M | $2.00 / 1M |
| Output price | $2.20 / 1M | $8.00 / 1M |
| Speed | 85 tok/s | — |
| Released | July 28, 2025 | March 7, 2025 |
| Parameters | 355B (32B active) | — |
| Input modalities | Text | Text, Image |
| Output modalities | Text | Text |
Shared benchmarks
GLM-4.5
Sonar Reasoning Pro
MATH-500
98.2
95.7