GLM 5.3 Flash vs Muse Spark 1.3
GLM 5.3 Flash 
Muse Spark 1.3 Verdict
- Muse Spark 1.3 (xhigh) leads on quality: 63.9 vs 61.1.
- GLM 5.3 Flash is stronger in human preference, reasoning.
- Muse Spark 1.3 (xhigh) is stronger in agents & tools, coding, composite, knowledge, long context, multimodal.
- GLM 5.3 Flash is 17× cheaper ($0.119 vs $2.00 per 1M blended).
- Muse Spark 1.3 (xhigh) streams 2.1× faster (190 vs 90 tokens per second).
| Metric | GLM 5.3 Flash | Muse Spark 1.3 (xhigh) |
|---|---|---|
| BenchLeader Index | 61.1 | 63.9 |
| Agents & tools score | 52.1 | 60.2 |
| Coding score | 64.3 | 70.3 |
| Composite score | 61.7 | 78.6 |
| Human preference score | 67.6 | – |
| Knowledge score | 67.7 | 75.1 |
| Long context score | 66.6 | 68.1 |
| Multimodal score | 65.5 | 66.6 |
| Reasoning score | 67.5 | – |
| Blended price $/M | $0.119 | $2.00 |
| Output speed | 90 tok/s | 190 tok/s |
| Time to first answer | 24.9 s | 35.7 s |
| Context window | 1M | 1M |
| SciCode | 46.1% | – |
| Epoch Capabilities Index | 151.4 | – |
| LMArena Text | 1474 | – |
| LMArena Hard Prompts | 1496 | – |
| LMArena Coding | 1534 | – |
| LMArena WebDev | 1605 | 1625 |
| LMArena Vision | 1296 | – |
| LMArena Agent | 2 | – |
| LiveBench | 71.6% | 81.6% |
| LiveBench Reasoning | 77.6% | 89.7% |
| LiveBench Coding | 79.0% | 81.1% |
| LiveBench Agentic Coding | 56.8% | 64.1% |
| LiveBench Mathematics | 81.2% | 96.0% |
| LiveBench Data Analysis | 76.4% | 79.6% |
| LiveBench Language | 77.3% | 82.8% |
| AA Intelligence Index | 41.9 | 45.2 |
| AA-LCR | 80.0% | 83.0% |
| MMMU-Pro | – | 82.0% |
| AA-Omniscience | 7.5 | 23.1 |
| GPQA Diamond (AA) | 91.2% | 94.1% |
| Humanity's Last Exam (AA) | 39.9% | 47.5% |
| SciCode (AA) | 51.6% | 59.7% |
| Terminal-Bench 2.1 (Vals) | – | 72.3% |
| Vals Index | – | 60.3 |
Data as of 2026-09-10. Best configuration of each model; every score links to its source on the model pages.
GLM 5.3 Flash vs Muse Spark 1.3: questions
- Is GLM 5.3 Flash better than Muse Spark 1.3?
- Muse Spark 1.3 (xhigh) leads on quality: 63.9 vs 61.1. The BenchLeader Index combines every independent quality benchmark; Muse Spark 1.3 (xhigh) is ahead overall as of 2026-09-10, but check the category scores for your use.
- Is GLM 5.3 Flash better than Muse Spark 1.3 for coding?
- Muse Spark 1.3 scores higher in coding (70 vs 64 on the category index, where 50 is average).
- Is GLM 5.3 Flash better than Muse Spark 1.3 for agentic tasks?
- Muse Spark 1.3 scores higher in agentic tasks (60 vs 52 on the category index, where 50 is average).
- Which is cheaper, GLM 5.3 Flash or Muse Spark 1.3?
- GLM 5.3 Flash is cheaper: $0.119 against $2.00 per million tokens, blended at three input tokens per output token.
- Which is faster, GLM 5.3 Flash or Muse Spark 1.3?
- Muse Spark 1.3 streams faster: 190 against 90 output tokens per second.
- Which has the larger context window?
- Both accept 1M tokens of context.