GLM 5.3 Flash vs Muse Spark
GLM 5.3 Flash 
Muse Spark Verdict
- Muse Spark leads on quality: 65.6 vs 61.1.
- GLM 5.3 Flash is stronger in knowledge, long context.
- Muse Spark is stronger in agents & tools, coding, composite, human preference, multimodal, reasoning, instruction following, maths.
| Metric | GLM 5.3 Flash | Muse Spark |
|---|---|---|
| BenchLeader Index | 61.1 | 65.6 |
| Agents & tools score | 52.1 | 66.4 |
| Coding score | 64.3 | 66.2 |
| Composite score | 61.7 | 68.6 |
| Human preference score | 67.6 | 69.3 |
| Knowledge score | 67.7 | 64.6 |
| Long context score | 66.6 | 65.5 |
| Multimodal score | 65.5 | 65.9 |
| Reasoning score | 67.5 | 70.2 |
| Instruction following score | – | 79.7 |
| Maths score | – | 56.4 |
| Blended price $/M | $0.119 | – |
| Output speed | 90 tok/s | – |
| Time to first answer | 24.9 s | – |
| Context window | 1M | 262k |
| GPQA Diamond | – | 89.8% |
| OTIS Mock AIME | – | 88.9% |
| Humanity's Last Exam | – | 40.6% |
| SciCode | 46.1% | 51.5% |
| ProofBench | – | 17.0% |
| Epoch Capabilities Index | 151.4 | 152.1 |
| LMArena Text | 1474 | 1488 |
| LMArena Hard Prompts | 1496 | 1505 |
| LMArena Coding | 1534 | 1526 |
| LMArena WebDev | 1605 | – |
| LMArena Vision | 1296 | 1306 |
| 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 | 31.3 |
| IFBench | – | 75.9% |
| AA-LCR | 80.0% | 78.0% |
| MMMU-Pro | – | 80.5% |
| AA-Omniscience | 7.5 | 7.2 |
| Terminal-Bench Hard | – | 45.5% |
| GPQA Diamond (AA) | 91.2% | 88.4% |
| Humanity's Last Exam (AA) | 39.9% | 40.7% |
| SciCode (AA) | 51.6% | – |
| τ²-Bench Telecom (AA) | – | 91.5% |
| AIME (Vals) | – | 96.9% |
| MMLU-Pro | – | 87.3% |
| LegalBench | – | 84.2% |
| CorpFin | – | 65.1% |
| TaxEval | – | 77.7% |
| SWE-bench (Vals) | – | 74.4% |
| GPQA Diamond (Vals) | – | 89.7% |
| SWE-Bench Pro | – | 55.0% |
| MCP Atlas | – | 82.2% |
| MultiChallenge | – | 75.5% |
| PRBench Finance | – | 52.4% |
| PRBench Legal | – | 52.3% |
| MultiNRC | – | 59.0% |
| TutorBench | – | 68.5% |
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: questions
- Is GLM 5.3 Flash better than Muse Spark?
- Muse Spark leads on quality: 65.6 vs 61.1. The BenchLeader Index combines every independent quality benchmark; Muse Spark 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 for coding?
- Muse Spark scores higher in coding (66 vs 64 on the category index, where 50 is average).
- Is GLM 5.3 Flash better than Muse Spark for agentic tasks?
- Muse Spark scores higher in agentic tasks (66 vs 52 on the category index, where 50 is average).
- Which has the larger context window?
- GLM 5.3 Flash accepts more context: 1M against 262k tokens.