GPT-5.2 vs Muse Spark 1.2
GPT-5.2 
Muse Spark 1.2 Verdict
- Muse Spark 1.2 leads on quality: 62.7 vs 61.6.
- GPT-5.2 is stronger in agents & tools, human preference, instruction following, long context, multimodal.
- Muse Spark 1.2 is stronger in coding, composite, knowledge, reasoning, maths.
- Muse Spark 1.2 is 2.4× cheaper ($2.00 vs $4.81 per 1M blended).
- Muse Spark 1.2 streams 2.8× faster (193 vs 68 tokens per second).
| Metric | GPT-5.2 | Muse Spark 1.2 |
|---|---|---|
| BenchLeader Index | 61.6 | 62.7 |
| Agents & tools score | 61.2 | – |
| Coding score | 53.7 | 66.5 |
| Composite score | 67.5 | 79.3 |
| Human preference score | 67.9 | – |
| Instruction following score | 67.4 | – |
| Knowledge score | 61.1 | 77.1 |
| Long context score | 67.9 | 66.0 |
| Multimodal score | 59.9 | – |
| Reasoning score | 61.3 | 70.7 |
| Maths score | – | 54.3 |
| Blended price $/M | $4.81 | $2.00 |
| Output speed | 68 tok/s | 193 tok/s |
| Time to first answer | 129.4 s | 23.4 s |
| Context window | 400k | 1.0M |
| Humanity's Last Exam | 27.8% | – |
| Terminal-Bench | 64.9% | – |
| SimpleBench | 45.8% | 74.5% |
| Remote Labor Index | 2.1% | – |
| APEX-Agents | 23.0% | – |
| ProofBench | – | 43.0% |
| Epoch Capabilities Index | 153.5 | 155.5 |
| LMArena Text | 1476 | – |
| LMArena Hard Prompts | 1497 | – |
| LMArena Coding | 1515 | – |
| LMArena WebDev | 1417 | – |
| LMArena Vision | 1268 | – |
| AA Intelligence Index | 30.4 | 39.8 |
| IFBench | 75.4% | – |
| AA-LCR | 82.7% | 79.0% |
| AA-Omniscience | -0.9 | 27.2 |
| Terminal-Bench Hard | 47.0% | – |
| GPQA Diamond (AA) | 90.3% | 90.4% |
| Humanity's Last Exam (AA) | 37.7% | 45.5% |
| SciCode (AA) | – | 57.4% |
| τ²-Bench Telecom (AA) | 84.8% | – |
| IOI | – | 49.5% |
| SWE-Bench Pro | 29.9% | – |
| VISTA | 46.6% | – |
| MultiNRC | 42.2% | – |
| TutorBench | 53.5% | – |
| Kagi LLM Benchmark | 73.3% | – |
| SWE-bench Verified (bash only) | 69.0% | – |
| ARC-AGI-1 | 94.5% | – |
| ARC-AGI-2 | 72.9% | – |
| BFCL Overall | 55.9% | – |
Data as of 2026-09-10. Best configuration of each model; every score links to its source on the model pages.
GPT-5.2 vs Muse Spark 1.2: questions
- Is GPT-5.2 better than Muse Spark 1.2?
- Muse Spark 1.2 leads on quality: 62.7 vs 61.6. 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 GPT-5.2 better than Muse Spark 1.2 for coding?
- Muse Spark 1.2 scores higher in coding (67 vs 54 on the category index, where 50 is average).
- Which is cheaper, GPT-5.2 or Muse Spark 1.2?
- Muse Spark 1.2 is cheaper: $2.00 against $4.81 per million tokens, blended at three input tokens per output token.
- Which is faster, GPT-5.2 or Muse Spark 1.2?
- Muse Spark 1.2 streams faster: 193 against 68 output tokens per second.
- Which has the larger context window?
- Muse Spark 1.2 accepts more context: 1.0M against 400k tokens.