# GPT-5.2 vs Muse Spark

> GPT-5.2 is the stronger model overall, scoring 54.1 to 50.3 on the Noometry Index.

- Canonical page: https://noometry.com/compare/gpt-5-2-vs-muse-spark
- Last updated: 2026-10-10
- Shared benchmarks: 25

## Summary

- They share 25 benchmarks with published results for both. GPT-5.2 scores higher in 5 categories and Muse Spark in 4 categories; 7 gaps are clear of the uncertainty.
- The widest gap is in reasoning, where GPT-5.2 leads 50.1 to 34.9.
- The biggest single-benchmark swing is Humanity's Last Exam: 27.8% for GPT-5.2 and 40.6% for Muse Spark.

## Snapshot

| | GPT-5.2 | Muse Spark |
|---|---|---|
| Provider | OpenAI | Meta |
| Noometry Index | 54.1 | 50.3 |
| Rank | 31 | 41 |
| Context | 400K | — |
| Input $/M | $1.75 | — |
| Output $/M | $14 | — |
| Weights | Proprietary | Proprietary |

## Coding

- GPT-5.2: 52.2 (#32)
- Muse Spark: 45.6 (#65)

| Benchmark | GPT-5.2 | Muse Spark |
|---|---|---|
| LMArena Coding | 1447 | 1482 |
| SWE-bench Verified | 73.8% | — |
| SWE-bench Verified (bash only) | 72.8% | — |
| LMArena WebDev | 1415 | — |
| SWE-bench Multilingual | 66.7% | — |
| SciCode | — | 51.5% |
| GSO | 27.4% | — |
| WeirdML | 72.2% | — |
| ALE-Bench | 1,294 | — |
| AlgoTune | 2.05 | — |

## Agentic & Tool Use

- GPT-5.2: 40.0 (#24)
- Muse Spark: —

| Benchmark | GPT-5.2 | Muse Spark |
|---|---|---|
| Terminal-Bench | 64.9% | — |
| Berkeley Function Calling Leaderboard | 55.9% | — |
| GDPval | 49.7% | — |
| Remote Labor Index | 2.5% | — |
| τ²-bench Airline | 83% | — |
| τ²-bench Banking | 32.2% | — |
| τ²-bench Retail | 81.6% | — |
| τ²-bench Telecom | 89.7% | — |
| DeepResearch Bench | 41.1% | — |
| LMArena Search | 1207 | — |
| METR Time Horizons | 75.3% | — |
| Vending-Bench 2 | 3,591 | — |

## Reasoning

- GPT-5.2: 50.1 (#33)
- Muse Spark: 34.9 (#61)

| Benchmark | GPT-5.2 | Muse Spark |
|---|---|---|
| LMArena Hard Prompts | 1445 | 1475 |
| Epoch Capabilities Index | 153.45 | 152.09 |
| ARC-AGI-2 | 52.9% | — |
| SimpleBench | 45.8% | — |
| Kagi LLM Benchmark | 73.3% | — |
| NYT Connections (extended) | 83.6% | — |
| ARC-AGI-1 | 86.2% | — |
| CritPt | — | 11.3% |
| Chess Puzzles | 49% | — |
| EnigmaEval | 10.4% | — |
| EBR-Bench | 23% | — |
| Mystery Game Puzzles | 23% | — |
| DTBench | 90.9% | — |
| LMCA | 43.9% | — |
| ForecastBench | 60.1 | — |

## Math

- GPT-5.2: 59.8 (#32)
- Muse Spark: 46.8 (#57)

| Benchmark | GPT-5.2 | Muse Spark |
|---|---|---|
| OTIS Mock AIME 2024-2025 | 96.1% | 88.9% |
| ProofBench | 15% | 17% |
| LMArena Math | 1439 | 1455 |
| FrontierMath (Feb 2025 set) | 40.7% | 39% |
| FrontierMath Tier 4 (v1) | 18.8% | 14.6% |
| FrontierMath (Tiers 1-3) | 67.4% | — |
| FrontierMath Tier 4 | 31.7% | — |
| MathArena Final-Answer Competitions | 72% | — |

## Knowledge

- GPT-5.2: 59.2 (#29)
- Muse Spark: 65.7 (#12)

| Benchmark | GPT-5.2 | Muse Spark |
|---|---|---|
| GPQA Diamond | 91.4% | 89.8% |
| Humanity's Last Exam | 27.8% | 40.6% |
| LMArena Expert | 1445 | 1458 |
| SimpleQA Verified | 37.1% | — |
| Vectara Hallucination Rate | 8.4% | — |

## Multimodal

- GPT-5.2: 50.9 (#7)
- Muse Spark: 42.7 (#23)

| Benchmark | GPT-5.2 | Muse Spark |
|---|---|---|
| LMArena Vision | 1268 | 1306 |
| LMArena Document | 1405 | 1444 |
| VPCT | 84% | — |
| Furniture Assembly | 38.3% | — |

## Multilingual

- GPT-5.2: 53.6 (#63)
- Muse Spark: 56.3 (#23)

| Benchmark | GPT-5.2 | Muse Spark |
|---|---|---|
| LMArena Non-English | 1425 | 1464 |
| LMArena Chinese | 1460 | 1507 |
| LMArena French | 1456 | 1497 |
| LMArena German | 1448 | 1497 |
| LMArena Korean | 1390 | 1457 |
| LMArena Russian | 1440 | 1467 |
| LMArena Spanish | 1433 | 1471 |
| LMArena Japanese | 1421 | — |

## Instruction Following

- GPT-5.2: 74.9 (#83)
- Muse Spark: 76.1 (#47)

| Benchmark | GPT-5.2 | Muse Spark |
|---|---|---|
| LMArena Instruction Following | 1417 | 1443 |

## Long Context

- GPT-5.2: 44.0 (#74)
- Muse Spark: 44.4 (#65)

| Benchmark | GPT-5.2 | Muse Spark |
|---|---|---|
| LMArena Longer Query | 1428 | 1451 |
| CL-bench | 18.2% | — |

## Writing & Preference

- GPT-5.2: 67.0 (#30)
- Muse Spark: 66.2 (#37)

| Benchmark | GPT-5.2 | Muse Spark |
|---|---|---|
| LMArena Text | 1439 | 1474 |
| LMArena Creative Writing | 1402 | 1460 |
| LMArena Multi-Turn | 1458 | 1477 |
| EQ-Bench Creative Writing | 1703 | — |

## FAQ

### Is GPT-5.2 better than Muse Spark?

GPT-5.2 is the stronger model overall, scoring 54.1 to 50.3 on the Noometry Index.

### Is GPT-5.2 or Muse Spark better for coding?

GPT-5.2 scores higher on coding benchmarks: 52.2 versus 45.6 in the Noometry coding category.

### How many benchmarks do GPT-5.2 and Muse Spark share?

25 benchmarks have published results for both models. GPT-5.2 has 67 scored results on Noometry and Muse Spark has 27.