GLM 5.1 vs Muse Spark 1.3
GLM 5.1 
Muse Spark 1.3 Verdict
- Muse Spark 1.3 leads on quality: 68.3 vs 60.3.
- GLM 5.1 is stronger in agents & tools, coding, human preference, instruction following, maths, reasoning.
- Muse Spark 1.3 is stronger in composite, knowledge, long context.
- They cost about the same ($2.00 per 1M blended).
- Muse Spark 1.3 streams 3.1× faster (241 vs 78 tokens per second).
| Metric | GLM 5.1 | Muse Spark 1.3 |
|---|---|---|
| BenchLeader Index | 60.3 | 68.3 |
| Agents & tools score | 56.9 | – |
| Coding score | 57.2 | – |
| Composite score | 62.7 | 90.3 |
| Human preference score | 66.4 | – |
| Instruction following score | 74.4 | – |
| Knowledge score | 56.7 | 79.1 |
| Long context score | 63.4 | 68.2 |
| Maths score | 53.0 | – |
| Reasoning score | 61.4 | – |
| Blended price $/M | $2.15 | $2.00 |
| Output speed | 78 tok/s | 241 tok/s |
| Time to first answer | 50.4 s | 30.5 s |
| Context window | 200k | 1.0M |
| GPQA Diamond | 89.9% | – |
| FrontierMath Tiers 1–3 | 36.8% | – |
| OTIS Mock AIME | 93.3% | – |
| SWE-bench Verified (Epoch) | 74.2% | – |
| SimpleQA Verified | 34.0% | – |
| SimpleBench | 55.1% | – |
| SciCode | 43.8% | – |
| WeirdML | 57.1% | – |
| ProofBench | 22.2% | – |
| Epoch Capabilities Index | 149.7 | – |
| LMArena Text | 1466 | – |
| LMArena Hard Prompts | 1489 | – |
| LMArena Coding | 1513 | – |
| LMArena WebDev | 1508 | – |
| AA Intelligence Index | 26.4 | 48.2 |
| IFBench | 76.3% | – |
| AA-LCR | 73.7% | 83.0% |
| AA-Omniscience | 0.8 | 25 |
| Terminal-Bench Hard | 43.2% | – |
| GPQA Diamond (AA) | 86.8% | 93.5% |
| Humanity's Last Exam (AA) | 30.1% | 48.7% |
| SciCode (AA) | 44.8% | 58.8% |
| τ²-Bench Telecom (AA) | 97.7% | – |
| AIME (Vals) | 91.9% | – |
| LiveCodeBench | 81.4% | – |
| MMLU-Pro | 86.9% | – |
| LegalBench | 84.4% | – |
| CorpFin | 64.5% | – |
| TaxEval | 71.2% | – |
| Terminal-Bench 2.1 (Vals) | 56.9% | – |
| SWE-bench (Vals) | 76.4% | – |
| GPQA Diamond (Vals) | 84.5% | – |
| AIME 2026 | 95.8% | – |
| HMMT February 2026 | 89.4% | – |
| MathArena Apex | 11.5% | – |
| MCP Atlas | 75.6% | – |
| PRBench Finance | – | 59.5% |
| PRBench Legal | – | 61.6% |
Data as of 2026-09-14. Best configuration of each model; every score links to its source on the model pages.
GLM 5.1 vs Muse Spark 1.3: questions
- Is GLM 5.1 better than Muse Spark 1.3?
- Muse Spark 1.3 leads on quality: 68.3 vs 60.3. The BenchLeader Index combines every independent quality benchmark; Muse Spark 1.3 is ahead overall as of 2026-09-14, but check the category scores for your use.
- Which is cheaper, GLM 5.1 or Muse Spark 1.3?
- Muse Spark 1.3 is cheaper: $2.00 against $2.15 per million tokens, blended at three input tokens per output token.
- Which is faster, GLM 5.1 or Muse Spark 1.3?
- Muse Spark 1.3 streams faster: 241 against 78 output tokens per second.
- Which has the larger context window?
- Muse Spark 1.3 accepts more context: 1.0M against 200k tokens.