Head to head
Z.ai: GLM 5.3 vs Z.ai: GLM 5.3 Flash
Live prices, context windows, capabilities, and measured quality — updated continuously.
Side by side
| Metric | Z.ai: GLM 5.3 Z Ai | Z.ai: GLM 5.3 Flash Z Ai |
|---|---|---|
| Input $/M tokens | $1.40 | $0.075 |
| Output $/M tokens | $4.40 | $0.250 |
| Context window | 1.3M | 1.3M |
| Max output | 262K | 131K |
| WM Score | 89 | 89 |
| Benchmark quality | 88.1 | 83.7 |
| Hosts serving it | 25 | 23 |
| Throughput (tok/s) | 119 | 165 |
| Latency (ms) | 570 | 439 |
| Vision | ||
| Tools | ||
| Reasoning | ||
| JSON mode |
Which should you pick?
Z.ai: GLM 5.3 Flash costs less per million input tokens — about 18.7× cheaper than Z.ai: GLM 5.3. Z.ai: GLM 5.3 scores higher on measured quality. Prices here are live list prices; the same model can cost less on a different host, so check the model page for the cheapest offering.