GLM 5.3 Flash vs Muse Spark 1.2
GLM 5.3 Flash 
Muse Spark 1.2 Verdict
- Muse Spark 1.2 leads on quality: 62.7 vs 61.1.
- GLM 5.3 Flash is stronger in agents & tools, human preference, long context, multimodal.
- Muse Spark 1.2 is stronger in coding, composite, knowledge, reasoning, maths.
- GLM 5.3 Flash is 17× cheaper ($0.119 vs $2.00 per 1M blended).
- Muse Spark 1.2 streams 2.2× faster (193 vs 90 tokens per second).
| Metric | GLM 5.3 Flash | Muse Spark 1.2 |
|---|---|---|
| BenchLeader Index | 61.1 | 62.7 |
| Agents & tools score | 52.1 | – |
| Coding score | 64.3 | 66.5 |
| Composite score | 61.7 | 79.3 |
| Human preference score | 67.6 | – |
| Knowledge score | 67.7 | 77.1 |
| Long context score | 66.6 | 66.0 |
| Multimodal score | 65.5 | – |
| Reasoning score | 67.5 | 70.7 |
| Maths score | – | 54.3 |
| Blended price $/M | $0.119 | $2.00 |
| Output speed | 90 tok/s | 193 tok/s |
| Time to first answer | 24.9 s | 23.4 s |
| Context window | 1M | 1.0M |
| SimpleBench | – | 74.5% |
| SciCode | 46.1% | – |
| ProofBench | – | 43.0% |
| Epoch Capabilities Index | 151.4 | 155.5 |
| LMArena Text | 1474 | – |
| LMArena Hard Prompts | 1496 | – |
| LMArena Coding | 1534 | – |
| LMArena WebDev | 1605 | – |
| LMArena Vision | 1296 | – |
| LMArena Agent | 2 | – |
| LiveBench | 71.6% | – |
| LiveBench Reasoning | 77.6% | – |
| LiveBench Coding | 79.0% | – |
| LiveBench Agentic Coding | 56.8% | – |
| LiveBench Mathematics | 81.2% | – |
| LiveBench Data Analysis | 76.4% | – |
| LiveBench Language | 77.3% | – |
| AA Intelligence Index | 41.9 | 39.8 |
| AA-LCR | 80.0% | 79.0% |
| AA-Omniscience | 7.5 | 27.2 |
| GPQA Diamond (AA) | 91.2% | 90.4% |
| Humanity's Last Exam (AA) | 39.9% | 45.5% |
| SciCode (AA) | 51.6% | 57.4% |
| IOI | – | 49.5% |
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 1.2: questions
- Is GLM 5.3 Flash better than Muse Spark 1.2?
- Muse Spark 1.2 leads on quality: 62.7 vs 61.1. The BenchLeader Index combines every independent quality benchmark; Muse Spark 1.2 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 1.2 for coding?
- Muse Spark 1.2 scores higher in coding (67 vs 64 on the category index, where 50 is average).
- Which is cheaper, GLM 5.3 Flash or Muse Spark 1.2?
- 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 1.2?
- Muse Spark 1.2 streams faster: 193 against 90 output tokens per second.
- Which has the larger context window?
- Muse Spark 1.2 accepts more context: 1.0M against 1M tokens.