GLM-5.2 vs Muse Spark Open
Price and specs side by side · USD per 1M tokens · verified 2026-10-23
// side by side
| metric | GLM-5.2 | Muse Spark Open |
|---|
| input / 1M | $1.40 | $1.25 |
| output / 1M | $4.40 | $4.25 |
| blended (3:1) | $2.15 | $2.00 |
| cache read / 1M | $0.26 | $0.15 |
| context | 1M | 1.05M |
| max output | 131.1K | 131.1K |
| input types | text | text · image |
| reasoning | yes | yes |
| tool calling | yes | yes |
| structured output | yes | yes |
| open weights | yes | yes |
| released | 2026-06-13 | 2026-10-15 |
| knowledge cutoff | n/a | 2026-01-04 |
| lab | Z.AI (Zhipu) | Meta |
// monthly cost scenarios
| workload | tokens in / out | GLM-5.2 | Muse Spark Open |
|---|
| Chatbot | 10M / 2M | $22.80 | $21.00 |
| RAG app | 50M / 5M | $92.00 | $83.75 |
| Coding agent | 20M / 10M | $72.00 | $67.50 |
// verdict
- Muse Spark Open is 7% cheaper than GLM-5.2 on a blended 3:1 input/output basis.
- Muse Spark Open has the larger context window (1.05M vs 1M tokens).
- Only Muse Spark Open accepts image input.
- Chatbot (10M input / 2M output tokens per month): Muse Spark Open costs $21.00 vs $22.80 for GLM-5.2, saving $1.80 per month.
- RAG app (50M input / 5M output tokens per month): Muse Spark Open costs $83.75 vs $92.00 for GLM-5.2, saving $8.25 per month.
- Coding agent (20M input / 10M output tokens per month): Muse Spark Open costs $67.50 vs $72.00 for GLM-5.2, saving $4.50 per month.
// GLM-5.2 or Muse Spark Open: which one to choose
- Choose Muse Spark Open for cost-sensitive, high-volume workloads.
- Choose Muse Spark Open for long documents and large codebases (1.05M-token context).
- Choose Muse Spark Open if you need image input.