Head to head
Z.ai: GLM 5.3 vs Meta: Muse Spark 1.3
Live prices, context windows, capabilities, and measured quality — updated continuously.
Side by side
| Metric | Z.ai: GLM 5.3 Z Ai | Meta: Muse Spark 1.3 Meta |
|---|---|---|
| Input $/M tokens | $1.40 | $1.25 |
| Output $/M tokens | $4.40 | $4.25 |
| Context window | 1.3M | 1.0M |
| Max output | 262K | 944K |
| WM Score | 91 | 87 |
| Benchmark quality | 92.3 | 87.8 |
| Hosts serving it | 24 | 1 |
| Throughput (tok/s) | 192 | 73 |
| Latency (ms) | 310 | 3138 |
| Vision | ||
| Tools | ||
| Reasoning | ||
| JSON mode |
Which should you pick?
Meta: Muse Spark 1.3 costs less per million input tokens — about 1.1× cheaper than Z.ai: GLM 5.3. Z.ai: GLM 5.3 scores higher on measured quality. Z.ai: GLM 5.3 takes a larger context window, which matters for long documents or big codebases. 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.