GLM 4.5 Air vs R1 1776
Zhipu AI vs Perplexity — benchmarks, pricing, and capabilities side by side.
- •R1 1776 has the higher intelligence index (95.4 vs 70.4)
- •R1 1776 is cheaper ($0.00 vs $0.13 per 1M input)
| GLM 4.5 Air | R1 1776 | |
|---|---|---|
| Intelligence index | 70.4 | 95.4 |
| Developer | Zhipu AI | Perplexity |
| Type | LLM | LLM |
| Access | Open weights | — |
| Context window | 131,072 tokens | — |
| Input price | $0.13 / 1M | $0.00 / 1M |
| Output price | $0.85 / 1M | $0.00 / 1M |
| Speed | 63 tok/s | — |
| Released | July 25, 2025 | February 18, 2025 |
| Parameters | — | — |
| Input modalities | Text | — |
| Output modalities | Text | — |
Shared benchmarks
GLM 4.5 Air
R1 1776
MATH-500
98.1
95.4