# GPT-5.2 vs Muse Spark 1.1

> Side-by-side benchmark comparison for GPT-5.2 and Muse Spark 1.1 across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/gpt-5-2-vs-muse-spark-1-1
- Last updated: October 7, 2026

- Shared sourced benchmarks: 4
- HTML indexing: indexable
- Ranking lane: BenchAlign v5.8

## Quick Verdict

Pick Muse Spark 1.1 if you want the stronger benchmark profile. GPT-5.2 only makes more sense when its price, context window, or workload-specific category wins matter more than the overall score.

## Summary

- Muse Spark 1.1 leads overall 65.95 to 60.28.
- The clearest category separation is in coding, where the averages are 38.4 for GPT-5.2 and 54.2 for Muse Spark 1.1.
- The biggest single benchmark swing is OSWorld-Verified in Agentic, with scores of 47.3% and 80.8%.
- Muse Spark 1.1 also has the larger context window at 1M.

## Model Snapshot

| Property | GPT-5.2 | Muse Spark 1.1 |
|----------|----------|----------|
| Creator | OpenAI | Meta |
| Type | Proprietary | Proprietary |
| Reasoning | Reasoning | Reasoning |
| Context | 400K | 1M |
| Overall Score | 60.28 | 65.95 |
| Benchmarks Covered | 16 | 26 |
| Pricing (input/output) | $1.75 / $14.00 | N/A |

## Category Breakdown

### Agentic

- Winner: Muse Spark 1.1
- GPT-5.2 public-lane score: 43.3 (Supported · #57/122)
- Muse Spark 1.1 public-lane score: 56.9 (Supported · #32/122)

| Benchmark | GPT-5.2 | Muse Spark 1.1 | Winner |
|-----------|-----------|-----------|--------|
| BrowseComp | 65.8% | Coming soon | Coming soon |
| OSWorld-Verified | 47.3% | 80.8% | Muse Spark 1.1 |
| Gert Labs | 46.54% | Coming soon | Coming soon |
| JobBench | 34.3% | 54.7% | Muse Spark 1.1 |
| Terminal-Bench 2.1 | Coming soon | 80.0% | Coming soon |
| MCP Atlas | Coming soon | 88.1% | Coming soon |
| Toolathlon | Coming soon | 75.6% | Coming soon |
| WebArena-Verified | Coming soon | 69% | Coming soon |
| DeepSearchQA | Coming soon | 84.9% | Coming soon |
| CyberGym | Coming soon | 59.0% | Coming soon |
| Finance Agent v2 | Coming soon | 57.2% | Coming soon |
| deepSwe | Coming soon | 53.3% | Coming soon |
| OSWorld 2.0 | Coming soon | 14.2% | Coming soon |
| Cybench | Coming soon | 92.9% | Coming soon |
| ExploitGym | Coming soon | 0.8% | Coming soon |
| Terminal-Bench 2.1 (Vals) | Coming soon | 69.3% | Coming soon |

### Coding

- Winner: Muse Spark 1.1
- GPT-5.2 public-lane score: 38.4 (Supported · #68/146)
- Muse Spark 1.1 public-lane score: 54.2 (Supported · #35/146)

| Benchmark | GPT-5.2 | Muse Spark 1.1 | Winner |
|-----------|-----------|-----------|--------|
| SWE-bench Verified | 80% | Coming soon | Coming soon |
| SWE-bench Pro | 55.6% | 61.5% | Muse Spark 1.1 |
| Vibe Code Bench | 53.50% | Coming soon | Coming soon |
| Terminal-Bench 2.1 | Coming soon | 80.0% | Coming soon |
| LiveCodeBench (Vals) | Coming soon | 85.9% | Coming soon |
| SWE-bench (Vals) | Coming soon | 82.0% | Coming soon |

### Reasoning

- Winner: Not comparable
- GPT-5.2 public-lane score: 60.7 (Unranked · 4 rankable rows)
- Muse Spark 1.1 public-lane score: 75.7 (Unranked · 3 rankable rows)

| Benchmark | GPT-5.2 | Muse Spark 1.1 | Winner |
|-----------|-----------|-----------|--------|
| ARC-AGI-2 | 52.9% | Coming soon | Coming soon |
| ARC-AGI-1 | 86.17% | Coming soon | Coming soon |
| MRCR 1M | Coming soon | 54.1% | Coming soon |

### Multimodal & Grounded

- Winner: Not comparable
- GPT-5.2 public-lane score: 67.3 (#22/49)
- Muse Spark 1.1 public-lane score: 78.3 (Unranked · 2 rankable rows)

| Benchmark | GPT-5.2 | Muse Spark 1.1 | Winner |
|-----------|-----------|-----------|--------|
| MMMU-Pro | 79.5% | Coming soon | Coming soon |
| MathVision | 83.0% | Coming soon | Coming soon |
| CharXiv | 82.1% | 88.4% | Muse Spark 1.1 |
| V* | 75.9% | Coming soon | Coming soon |
| BabyVision | Coming soon | 76.3% | Coming soon |

### Knowledge

- Winner: Muse Spark 1.1
- GPT-5.2 public-lane score: 58 (Supported · #47/174)
- Muse Spark 1.1 public-lane score: 66.7 (Supported · #21/174)

| Benchmark | GPT-5.2 | Muse Spark 1.1 | Winner |
|-----------|-----------|-----------|--------|
| GPQA | 92.4% | Coming soon | Coming soon |
| HLE | Coming soon | 62.1% | Coming soon |
| HLE w/o tools | Coming soon | 52.2% | Coming soon |
| HealthBench Professional | Coming soon | 59.3% | Coming soon |
| GPQA Diamond (Vals) | Coming soon | 91.2% | Coming soon |
| MMLU-Pro (Vals) | Coming soon | 88.7% | Coming soon |

### Instruction Following

- Winner: Not comparable
- GPT-5.2 public-lane score: 91.2 (#15/125)
- Muse Spark 1.1 public-lane score: Coming soon

### Mathematics

- Winner: Not comparable
- GPT-5.2 public-lane score: 57.4 (Unranked · 2 rankable rows)
- Muse Spark 1.1 public-lane score: Coming soon

| Benchmark | GPT-5.2 | Muse Spark 1.1 | Winner |
|-----------|-----------|-----------|--------|
| FrontierMath v2 (Tiers 1-3) | 40.700% | Coming soon | Coming soon |
| FrontierMath v2 (Tier 4) | 18.800% | Coming soon | Coming soon |

## FAQ

### Which is better overall, GPT-5.2 or Muse Spark 1.1?

Muse Spark 1.1 is ahead overall on BenchLM right now.

### Where is the biggest gap between GPT-5.2 and Muse Spark 1.1?

The widest category gap is in coding, where the averages are 38.4 for GPT-5.2 and 54.2 for Muse Spark 1.1.

### How many benchmarks does GPT-5.2 cover on BenchLM?

GPT-5.2 currently has 16 sourced benchmark scores on BenchLM.

### How many benchmarks does Muse Spark 1.1 cover on BenchLM?

Muse Spark 1.1 currently has 26 sourced benchmark scores on BenchLM.

## Related Comparisons

- [GPT-5.2 vs GPT-5.2 Pro](/compare/gpt-5-2-vs-gpt-5-2-pro)
- [Muse Spark 1.1 vs GPT-5.2 Pro](/compare/gpt-5-2-pro-vs-muse-spark-1-1)
- [GPT-5.2 vs GPT-5.2 Instant](/compare/gpt-5-2-vs-gpt-5-2-instant)
- [Muse Spark 1.1 vs GPT-5.2 Instant](/compare/gpt-5-2-instant-vs-muse-spark-1-1)

## Explore More

- [GPT-5.2 profile](/models/gpt-5-2)
- [Muse Spark 1.1 profile](/models/muse-spark-1-1)
- [Compare Pricing](/llm-pricing)
- [Alternative Finder](/tools/alternative-finder)
- [LLM Selector](/tools/llm-selector)
- [Overall Rankings](/best/overall)