# GPT-5.4 nano vs Muse Spark 1.1

> Side-by-side benchmark comparison for GPT-5.4 nano and Muse Spark 1.1 across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/gpt-5-4-nano-vs-muse-spark-1-1
- Last updated: October 7, 2026

- Shared sourced benchmarks: 10
- HTML indexing: indexable
- Ranking lane: BenchAlign v5.8

## Quick Verdict

Pick Muse Spark 1.1 if you want the stronger benchmark profile. GPT-5.4 nano 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 47.51.
- The clearest category separation is in multimodal & grounded, where the averages are 24.9 for GPT-5.4 nano and 78.3 for Muse Spark 1.1.
- The biggest single benchmark swing is OSWorld-Verified in Agentic, with scores of 39% and 80.8%.
- Muse Spark 1.1 also has the larger context window at 1M.

## Model Snapshot

| Property | GPT-5.4 nano | Muse Spark 1.1 |
|----------|----------|----------|
| Creator | OpenAI | Meta |
| Type | Proprietary | Proprietary |
| Reasoning | Reasoning | Reasoning |
| Context | 400K | 1M |
| Overall Score | 47.51 | 65.95 |
| Benchmarks Covered | 20 | 26 |
| Pricing (input/output) | $0.20 / $1.25 | N/A |

## Category Breakdown

### Agentic

- Winner: Muse Spark 1.1
- GPT-5.4 nano public-lane score: 32.2 (Supported · #80/122)
- Muse Spark 1.1 public-lane score: 56.9 (Supported · #32/122)

| Benchmark | GPT-5.4 nano | Muse Spark 1.1 | Winner |
|-----------|-----------|-----------|--------|
| Terminal-Bench 2.0 | 46.3% | Coming soon | Coming soon |
| OSWorld-Verified | 39% | 80.8% | Muse Spark 1.1 |
| MCP Atlas | 56.1% | 88.1% | Muse Spark 1.1 |
| Toolathlon | 35.5% | 75.6% | Muse Spark 1.1 |
| τ²-bench results | 92.5% | Coming soon | Coming soon |
| Terminal-Bench 2.1 (Vals) | 41.6% | 69.3% | Muse Spark 1.1 |
| Terminal-Bench 2.1 | Coming soon | 80.0% | 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 |
| JobBench | Coming soon | 54.7% | Coming soon |
| Cybench | Coming soon | 92.9% | Coming soon |
| ExploitGym | Coming soon | 0.8% | Coming soon |

### Coding

- Winner: Muse Spark 1.1
- GPT-5.4 nano public-lane score: 31.1 (Supported · #92/146)
- Muse Spark 1.1 public-lane score: 54.2 (Supported · #35/146)

| Benchmark | GPT-5.4 nano | Muse Spark 1.1 | Winner |
|-----------|-----------|-----------|--------|
| Vibe Code Bench | 26.10% | Coming soon | Coming soon |
| LiveCodeBench (Vals) | 84.0% | 85.9% | Muse Spark 1.1 |
| SWE-bench (Vals) | 69.8% | 82.0% | Muse Spark 1.1 |
| Terminal-Bench 2.1 | Coming soon | 80.0% | Coming soon |
| SWE-bench Pro | Coming soon | 61.5% | Coming soon |

### Reasoning

- Winner: Not comparable
- GPT-5.4 nano public-lane score: 37 (Unranked · 4 rankable rows)
- Muse Spark 1.1 public-lane score: 75.7 (Unranked · 3 rankable rows)

| Benchmark | GPT-5.4 nano | Muse Spark 1.1 | Winner |
|-----------|-----------|-----------|--------|
| ARC-AGI-1 | 51.50% | Coming soon | Coming soon |
| ARC-AGI-2 | 5.7% | Coming soon | Coming soon |
| MRCR 1M | Coming soon | 54.1% | Coming soon |

### Multimodal & Grounded

- Winner: Not comparable
- GPT-5.4 nano public-lane score: 24.9 (#46/49)
- Muse Spark 1.1 public-lane score: 78.3 (Unranked · 2 rankable rows)

| Benchmark | GPT-5.4 nano | Muse Spark 1.1 | Winner |
|-----------|-----------|-----------|--------|
| MMMU-Pro | 66.1% | Coming soon | Coming soon |
| MMMU-Pro w/ Python | 69.5% | Coming soon | Coming soon |
| CharXiv | Coming soon | 88.4% | Coming soon |
| BabyVision | Coming soon | 76.3% | Coming soon |

### Knowledge

- Winner: Muse Spark 1.1
- GPT-5.4 nano public-lane score: 38 (Supported · #108/174)
- Muse Spark 1.1 public-lane score: 66.7 (Supported · #21/174)

| Benchmark | GPT-5.4 nano | Muse Spark 1.1 | Winner |
|-----------|-----------|-----------|--------|
| GPQA | 82.8% | Coming soon | Coming soon |
| HLE | 37.7% | 62.1% | Muse Spark 1.1 |
| HLE w/o tools | 24.3% | 52.2% | Muse Spark 1.1 |
| GPQA Diamond (Vals) | 77.5% | 91.2% | Muse Spark 1.1 |
| MMLU-Pro (Vals) | 77.2% | 88.7% | Muse Spark 1.1 |
| HealthBench Professional | Coming soon | 59.3% | Coming soon |

### Instruction Following

- Winner: Not comparable
- GPT-5.4 nano public-lane score: 91.9 (#9/125)
- Muse Spark 1.1 public-lane score: Coming soon

### Mathematics

- Winner: Not comparable
- GPT-5.4 nano public-lane score: 43.8 (Unranked · 2 rankable rows)
- Muse Spark 1.1 public-lane score: Coming soon

| Benchmark | GPT-5.4 nano | Muse Spark 1.1 | Winner |
|-----------|-----------|-----------|--------|
| FrontierMath v2 (Tiers 1-3) | 25.860% | Coming soon | Coming soon |
| FrontierMath v2 (Tier 4) | 6.250% | Coming soon | Coming soon |

## FAQ

### Which is better overall, GPT-5.4 nano or Muse Spark 1.1?

Muse Spark 1.1 is ahead overall on BenchLM right now.

### Where is the biggest gap between GPT-5.4 nano and Muse Spark 1.1?

The widest category gap is in multimodal & grounded, where the averages are 24.9 for GPT-5.4 nano and 78.3 for Muse Spark 1.1.

### How many benchmarks does GPT-5.4 nano cover on BenchLM?

GPT-5.4 nano currently has 20 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-5.4 nano vs GPT-5.4 Pro](/compare/gpt-5-4-nano-vs-gpt-5-4-pro)
- [Muse Spark 1.1 vs GPT-5.4 Pro](/compare/gpt-5-4-pro-vs-muse-spark-1-1)
- [GPT-5.4 nano vs GPT-5.4](/compare/gpt-5-4-vs-gpt-5-4-nano)
- [Muse Spark 1.1 vs GPT-5.4](/compare/gpt-5-4-vs-muse-spark-1-1)

## Explore More

- [GPT-5.4 nano profile](/models/gpt-5-4-nano)
- [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)