# Aion 3.5 vs Muse Spark 1.1

> Muse Spark 1.1 has enough public results to be ranked (#51); Aion 3.5 does not yet, so treat this comparison as directional.

- Canonical page: https://noometry.com/compare/aion-3-5-vs-muse-spark-1-1
- Last updated: 2026-10-12
- Shared benchmarks: 1

## Summary

- They share 1 benchmark with published results for both. Aion 3.5 scores higher in 1 category and Muse Spark 1.1 in 0 categories; one gap is clear of the uncertainty.
- Muse Spark 1.1 is cheaper at $1.25 / $4.25 per million input/output tokens, against $3 / $6 for Aion 3.5.
- Muse Spark 1.1 accepts more context: 1.05M tokens versus 262K.

## Snapshot

| | Aion 3.5 | Muse Spark 1.1 |
|---|---|---|
| Provider | AionLabs | Meta |
| Noometry Index | 58.1 | 49.9 |
| Rank | — | 51 |
| Context | 262K | 1.05M |
| Input $/M | $3 | $1.25 |
| Output $/M | $6 | $4.25 |
| Weights | Proprietary | Proprietary |

## Coding

- Aion 3.5: —
- Muse Spark 1.1: 51.3 (#40)

| Benchmark | Aion 3.5 | Muse Spark 1.1 |
|---|---|---|
| DeepSWE | — | 53.3% |
| LMArena WebDev | — | 1542 |
| SciCode | — | 58.8% |
| LMArena Coding | — | 1498 |

## Agentic & Tool Use

- Aion 3.5: —
- Muse Spark 1.1: 30.8 (#73)

| Benchmark | Aion 3.5 | Muse Spark 1.1 |
|---|---|---|
| APEX-Agents | — | 31.8% |
| τ²-bench Banking | — | 40.5% |
| GBAEval | — | 7.9% |
| GDP.pdf | — | 15% |
| Vending-Bench 2 | — | 6,520 |

## Reasoning

- Aion 3.5: —
- Muse Spark 1.1: 47.1 (#44)

| Benchmark | Aion 3.5 | Muse Spark 1.1 |
|---|---|---|
| NYT Connections (extended) | — | 84.9% |
| CritPt | — | 15.1% |
| LMArena Hard Prompts | — | 1486 |
| DTBench | — | 94.4% |
| LMCA | — | 49.9% |
| Surface Evolver Bench | — | 52.5% |
| Epoch Capabilities Index | — | 154.21 |

## Math

- Aion 3.5: —
- Muse Spark 1.1: 45.5 (#76)

| Benchmark | Aion 3.5 | Muse Spark 1.1 |
|---|---|---|
| ProofBench | — | 39% |
| LMArena Math | — | 1483 |

## Knowledge

- Aion 3.5: —
- Muse Spark 1.1: 53.1 (#59)

| Benchmark | Aion 3.5 | Muse Spark 1.1 |
|---|---|---|
| SimpleQA Verified | — | 57.8% |
| LMArena Expert | — | 1478 |

## Multimodal

- Aion 3.5: —
- Muse Spark 1.1: 42.6 (#29)

| Benchmark | Aion 3.5 | Muse Spark 1.1 |
|---|---|---|
| LMArena Vision | — | 1293 |
| LMArena Document | — | 1465 |

## Multilingual

- Aion 3.5: —
- Muse Spark 1.1: 56.7 (#17)

| Benchmark | Aion 3.5 | Muse Spark 1.1 |
|---|---|---|
| LMArena Non-English | — | 1472 |
| LMArena Chinese | — | 1518 |
| LMArena French | — | 1494 |
| LMArena German | — | 1466 |
| LMArena Japanese | — | 1451 |
| LMArena Korean | — | 1458 |
| LMArena Russian | — | 1483 |
| LMArena Spanish | — | 1464 |

## Instruction Following

- Aion 3.5: —
- Muse Spark 1.1: 76.5 (#39)

| Benchmark | Aion 3.5 | Muse Spark 1.1 |
|---|---|---|
| LMArena Instruction Following | — | 1457 |

## Long Context

- Aion 3.5: —
- Muse Spark 1.1: 44.8 (#58)

| Benchmark | Aion 3.5 | Muse Spark 1.1 |
|---|---|---|
| LMArena Longer Query | — | 1462 |

## Writing & Preference

- Aion 3.5: 74.9
- Muse Spark 1.1: 73.4 (#11)

| Benchmark | Aion 3.5 | Muse Spark 1.1 |
|---|---|---|
| EQ-Bench Creative Writing | 1929 | 1927 |
| LMArena Text | — | 1479 |
| LMArena Creative Writing | — | 1437 |
| EQ-Bench 4 | — | 1260 |
| LMArena Multi-Turn | — | 1485 |

## FAQ

### Is Aion 3.5 better than Muse Spark 1.1?

Muse Spark 1.1 has enough public results to be ranked (#51); Aion 3.5 does not yet, so treat this comparison as directional.

### Which is cheaper, Aion 3.5 or Muse Spark 1.1?

Muse Spark 1.1 is cheaper. It lists at $1.25 per million input tokens and $4.25 per million output tokens; Aion 3.5 lists at $3 and $6.

### Which has the bigger context window?

Muse Spark 1.1 does, with 1.05M tokens against 262K.

### How many benchmarks do Aion 3.5 and Muse Spark 1.1 share?

1 benchmark has published results for both models. Aion 3.5 has 1 scored results on Noometry and Muse Spark 1.1 has 37.