# Muse Spark 1.3 vs Reka Flash 3

> Muse Spark 1.3 has enough public results to be ranked (#27); Reka Flash 3 does not yet, so treat this comparison as directional.

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

## Summary

- They share 1 benchmark with published results for both. Muse Spark 1.3 scores higher in 2 categories and Reka Flash 3 in 0 categories; 2 gaps are clear of the uncertainty.
- The widest gap is in writing & preference, where Muse Spark 1.3 leads 73.6 to 43.7.
- Reka Flash 3 is cheaper at $0.10 / $0.20 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 66K.
- Reka Flash 3 has downloadable open weights; the other is API-only.

## Snapshot

| | Muse Spark 1.3 | Reka Flash 3 |
|---|---|---|
| Provider | Meta | Reka |
| Noometry Index | 54.8 | 36.8 |
| Rank | 27 | — |
| Context | 1.05M | 66K |
| Input $/M | $1.25 | $0.10 |
| Output $/M | $4.25 | $0.20 |
| Weights | Proprietary | Open |

## Coding

- Muse Spark 1.3: 56.6 (#21)
- Reka Flash 3: —

| Benchmark | Muse Spark 1.3 | Reka Flash 3 |
|---|---|---|
| CursorBench | 41.6% | — |
| LMArena WebDev | 1657 | — |
| SciCode | 59.7% | — |
| LMArena Coding | 1514 | — |

## Agentic & Tool Use

- Muse Spark 1.3: 38.6 (#30)
- Reka Flash 3: 30.4

| Benchmark | Muse Spark 1.3 | Reka Flash 3 |
|---|---|---|
| APEX-Agents | 57.8% | — |
| BALROG | — | 29.2% |
| GDP.pdf | 27.6% | — |

## Reasoning

- Muse Spark 1.3: 54.0 (#27)
- Reka Flash 3: —

| Benchmark | Muse Spark 1.3 | Reka Flash 3 |
|---|---|---|
| NYT Connections (extended) | 85.1% | — |
| CritPt | 26% | — |
| Chess Puzzles | 38% | — |
| LMArena Hard Prompts | 1503 | — |
| Mystery Game Puzzles | 25% | — |
| DTBench | 96.5% | — |
| LMCA | 53.9% | — |
| Bench to the Future 3 | 0.14 | — |
| Epoch Capabilities Index | 156.75 | — |

## Math

- Muse Spark 1.3: 73.1 (#21)
- Reka Flash 3: —

| Benchmark | Muse Spark 1.3 | Reka Flash 3 |
|---|---|---|
| FrontierMath (Tiers 1-3) | 74.4% | — |
| FrontierMath Tier 4 | 46.3% | — |
| OTIS Mock AIME 2024-2025 | 99.2% | — |
| ProofBench | 58% | — |
| LMArena Math | 1494 | — |

## Knowledge

- Muse Spark 1.3: 42.6 (#95)
- Reka Flash 3: —

| Benchmark | Muse Spark 1.3 | Reka Flash 3 |
|---|---|---|
| LMArena Expert | 1516 | — |

## Multimodal

- Muse Spark 1.3: 43.7 (#22)
- Reka Flash 3: —

| Benchmark | Muse Spark 1.3 | Reka Flash 3 |
|---|---|---|
| LMArena Vision | 1309 | — |
| LMArena Document | 1471 | — |

## Multilingual

- Muse Spark 1.3: 57.4 (#8)
- Reka Flash 3: —

| Benchmark | Muse Spark 1.3 | Reka Flash 3 |
|---|---|---|
| LMArena Non-English | 1481 | — |
| LMArena Chinese | 1529 | — |
| LMArena French | 1524 | — |
| LMArena German | 1515 | — |
| LMArena Japanese | 1474 | — |
| LMArena Korean | 1501 | — |
| LMArena Russian | 1490 | — |
| LMArena Spanish | 1490 | — |

## Instruction Following

- Muse Spark 1.3: 77.5 (#22)
- Reka Flash 3: —

| Benchmark | Muse Spark 1.3 | Reka Flash 3 |
|---|---|---|
| LMArena Instruction Following | 1477 | — |

## Long Context

- Muse Spark 1.3: 45.6 (#32)
- Reka Flash 3: —

| Benchmark | Muse Spark 1.3 | Reka Flash 3 |
|---|---|---|
| LMArena Longer Query | 1488 | — |

## Writing & Preference

- Muse Spark 1.3: 73.6 (#9)
- Reka Flash 3: 43.7

| Benchmark | Muse Spark 1.3 | Reka Flash 3 |
|---|---|---|
| EQ-Bench Creative Writing | 1906 | 1228 |
| LMArena Text | 1490 | — |
| LMArena Creative Writing | 1455 | — |
| LMArena Multi-Turn | 1482 | — |

## FAQ

### Is Muse Spark 1.3 better than Reka Flash 3?

Muse Spark 1.3 has enough public results to be ranked (#27); Reka Flash 3 does not yet, so treat this comparison as directional.

### Which is cheaper, Muse Spark 1.3 or Reka Flash 3?

Reka Flash 3 is cheaper. It lists at $0.10 per million input tokens and $0.20 per million output tokens; Muse Spark 1.3 lists at $1.25 and $4.25.

### Which has the bigger context window?

Muse Spark 1.3 does, with 1.05M tokens against 66K.

### How many benchmarks do Muse Spark 1.3 and Reka Flash 3 share?

1 benchmark has published results for both models. Muse Spark 1.3 has 37 scored results on Noometry and Reka Flash 3 has 2.