# Inkling-Small vs Muse Spark 1.3

> Muse Spark 1.3 is the stronger model overall, scoring 54.4 to 46.5 on the Noometry Index. Inkling-Small costs 3.1× less per token, which makes it the better buy when Muse Spark 1.3's lead doesn't matter for your workload.

- Canonical page: https://noometry.com/compare/inkling-small-vs-muse-spark-1-3
- Last updated: 2026-10-10
- Shared benchmarks: 26

## Summary

- They share 26 benchmarks with published results for both. Inkling-Small scores higher in 1 category and Muse Spark 1.3 in 8 categories; 9 gaps are clear of the uncertainty.
- The widest gap is in math, where Muse Spark 1.3 leads 72.4 to 44.9.
- The biggest single-benchmark swing is FrontierMath Tier 4: 17.1% for Inkling-Small and 46.3% for Muse Spark 1.3.
- Inkling-Small is cheaper at $0.45 / $1.20 per million input/output tokens, against $1.25 / $4.25 for Muse Spark 1.3.
- Muse Spark 1.3 accepts more context: 1.05M tokens versus 524K.
- Inkling-Small has downloadable open weights; the other is API-only.

## Snapshot

| | Inkling-Small | Muse Spark 1.3 |
|---|---|---|
| Provider | Thinking Machines Lab | Meta |
| Noometry Index | 46.5 | 54.4 |
| Rank | 57 | 27 |
| Context | 524K | 1.05M |
| Input $/M | $0.45 | $1.25 |
| Output $/M | $1.20 | $4.25 |
| Weights | Open | Proprietary |

## Coding

- Inkling-Small: 43.3 (#80)
- Muse Spark 1.3: 56.1 (#18)

| Benchmark | Inkling-Small | Muse Spark 1.3 |
|---|---|---|
| LMArena WebDev | 1408 | 1655 |
| SciCode | 48.7% | 59.7% |
| LMArena Coding | 1451 | 1516 |
| CursorBench | — | 41.6% |

## Agentic & Tool Use

- Inkling-Small: —
- Muse Spark 1.3: 38.6 (#28)

| Benchmark | Inkling-Small | Muse Spark 1.3 |
|---|---|---|
| APEX-Agents | — | 57.8% |
| GDP.pdf | — | 27.6% |

## Reasoning

- Inkling-Small: 39.0 (#53)
- Muse Spark 1.3: 52.9 (#27)

| Benchmark | Inkling-Small | Muse Spark 1.3 |
|---|---|---|
| CritPt | 8.3% | 24.9% |
| Chess Puzzles | 18% | 38% |
| LMArena Hard Prompts | 1424 | 1503 |
| Mystery Game Puzzles | 6% | 25% |
| Epoch Capabilities Index | 150.13 | 156.89 |
| ARC-AGI-2 | 40.1% | — |
| NYT Connections (extended) | — | 85.1% |
| ARC-AGI-1 | 84% | — |
| DTBench | — | 96.5% |
| LMCA | — | 53.9% |
| Bench to the Future 3 | — | 0.14 |

## Math

- Inkling-Small: 44.9 (#65)
- Muse Spark 1.3: 72.4 (#16)

| Benchmark | Inkling-Small | Muse Spark 1.3 |
|---|---|---|
| FrontierMath (Tiers 1-3) | 46.3% | 74.4% |
| FrontierMath Tier 4 | 17.1% | 46.3% |
| OTIS Mock AIME 2024-2025 | 90% | 99.2% |
| LMArena Math | 1453 | 1497 |
| ProofBench | 6% | — |

## Knowledge

- Inkling-Small: 48.3 (#71)
- Muse Spark 1.3: 42.0 (#92)

| Benchmark | Inkling-Small | Muse Spark 1.3 |
|---|---|---|
| LMArena Expert | 1442 | 1516 |
| GPQA Diamond | 88.5% | — |
| SimpleQA Verified | 19.1% | — |

## Multimodal

- Inkling-Small: 38.4 (#59)
- Muse Spark 1.3: 43.0 (#21)

| Benchmark | Inkling-Small | Muse Spark 1.3 |
|---|---|---|
| LMArena Vision | 1235 | 1310 |
| LMArena Document | — | 1471 |

## Multilingual

- Inkling-Small: 51.7 (#102)
- Muse Spark 1.3: 57.8 (#6)

| Benchmark | Inkling-Small | Muse Spark 1.3 |
|---|---|---|
| LMArena Non-English | 1400 | 1485 |
| LMArena Chinese | 1458 | 1527 |
| LMArena French | 1438 | 1534 |
| LMArena Korean | 1355 | 1513 |
| LMArena Russian | 1392 | 1491 |
| LMArena Spanish | 1426 | 1485 |
| LMArena German | 1412 | — |
| LMArena Japanese | 1399 | — |

## Instruction Following

- Inkling-Small: 73.9 (#112)
- Muse Spark 1.3: 77.8 (#14)

| Benchmark | Inkling-Small | Muse Spark 1.3 |
|---|---|---|
| LMArena Instruction Following | 1397 | 1481 |

## Long Context

- Inkling-Small: 42.7 (#113)
- Muse Spark 1.3: 45.7 (#29)

| Benchmark | Inkling-Small | Muse Spark 1.3 |
|---|---|---|
| LMArena Longer Query | 1401 | 1491 |

## Writing & Preference

- Inkling-Small: 59.8 (#102)
- Muse Spark 1.3: 73.7 (#10)

| Benchmark | Inkling-Small | Muse Spark 1.3 |
|---|---|---|
| LMArena Text | 1413 | 1490 |
| LMArena Creative Writing | 1330 | 1450 |
| EQ-Bench Creative Writing | 1491 | 1906 |
| LMArena Multi-Turn | 1420 | 1486 |

## FAQ

### Is Inkling-Small better than Muse Spark 1.3?

Muse Spark 1.3 is the stronger model overall, scoring 54.4 to 46.5 on the Noometry Index. Inkling-Small costs 3.1× less per token, which makes it the better buy when Muse Spark 1.3's lead doesn't matter for your workload.

### Which is cheaper, Inkling-Small or Muse Spark 1.3?

Inkling-Small is cheaper. It lists at $0.45 per million input tokens and $1.20 per million output tokens; Muse Spark 1.3 lists at $1.25 and $4.25.

### Is Inkling-Small or Muse Spark 1.3 better for coding?

Muse Spark 1.3 scores higher on coding benchmarks: 56.1 versus 43.3 in the Noometry coding category.

### Which has the bigger context window?

Muse Spark 1.3 does, with 1.05M tokens against 524K.

### How many benchmarks do Inkling-Small and Muse Spark 1.3 share?

26 benchmarks have published results for both models. Inkling-Small has 33 scored results on Noometry and Muse Spark 1.3 has 34.