Model comparison
Muse Spark 1.2 vs Reka Flash 3
Muse Spark 1.2 has enough public results to be ranked (#44); Reka Flash 3 does not yet, so treat this comparison as directional.
Last verified . 1 shared benchmarks.
Summary
- They share 1 benchmark with published results for both. Muse Spark 1.2 scores higher in 1 category and Reka Flash 3 in 1 category; one gap is clear of the uncertainty.
- The widest gap is in writing & preference, where Muse Spark 1.2 leads 72.6 to 43.8.
- Reka Flash 3 is cheaper at $0.10 / $0.20 per million input/output tokens, against $1.25 / $4.25 for Muse Spark 1.2.
- Muse Spark 1.2 accepts more context: 1.05M tokens versus 66K.
- Reka Flash 3 has downloadable open weights; the other is API-only.
Side by side
| Muse Spark 1.2 | Reka Flash 3 | |
|---|---|---|
| Provider | Meta | Reka |
| Noometry Index | 49.8 | 36.4 |
| Released | 2026-08-05 | 2025-03-10 |
| Weights | Proprietary | Open |
| Context window | 1.05M | 66K |
| Max output | 131K | 59K |
| Input $ / M tokens | $1.25 | $0.10 |
| Output $ / M tokens | $4.25 | $0.20 |
| Results tracked | 28 | 2 |
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Category by category
Coding Not comparable
Muse Spark 1.2: 48.6 (#49), Reka Flash 3: —
| Benchmark | Muse Spark 1.2 | Reka Flash 3 |
|---|---|---|
| DeepSWE | 54.9% | — |
| LMArena WebDev | 1532 | — |
| FrontierSWE | 12% | — |
| SciCode | 56.4% | — |
| WeirdML | 60.3% | — |
| LMArena Coding | 1497 | — |
Agentic & Tool Use Too close to call
Muse Spark 1.2: 29.5 (#77), Reka Flash 3: 30.1
| Benchmark | Muse Spark 1.2 | Reka Flash 3 |
|---|---|---|
| APEX-Agents | 36.4% | — |
| BALROG | — | 29.2% |
| GDP.pdf | 16% | — |
Reasoning Not comparable
Muse Spark 1.2: 50.4 (#32), Reka Flash 3: —
| Benchmark | Muse Spark 1.2 | Reka Flash 3 |
|---|---|---|
| SimpleBench | 74.5% | — |
| NYT Connections (extended) | 79.2% | — |
| CritPt | 17.7% | — |
| LMArena Hard Prompts | 1490 | — |
| DTBench | 94.7% | — |
| LMCA | 48.4% | — |
| Epoch Capabilities Index | 155.18 | — |
Math Not comparable
Muse Spark 1.2: 43.8 (#68), Reka Flash 3: —
| Benchmark | Muse Spark 1.2 | Reka Flash 3 |
|---|---|---|
| ProofBench | 43% | — |
Knowledge Not comparable
Muse Spark 1.2: 53.9 (#49), Reka Flash 3: —
| Benchmark | Muse Spark 1.2 | Reka Flash 3 |
|---|---|---|
| SimpleQA Verified | 60.3% | — |
| LMArena Expert | 1485 | — |
Multimodal Not comparable
Muse Spark 1.2: 42.6 (#24), Reka Flash 3: —
| Benchmark | Muse Spark 1.2 | Reka Flash 3 |
|---|---|---|
| LMArena Vision | 1304 | — |
Multilingual Not comparable
Muse Spark 1.2: 57.4 (#10), Reka Flash 3: —
| Benchmark | Muse Spark 1.2 | Reka Flash 3 |
|---|---|---|
| LMArena Non-English | 1479 | — |
| LMArena Chinese | 1519 | — |
| LMArena Russian | 1494 | — |
Instruction Following Not comparable
Muse Spark 1.2: 77.1 (#30), Reka Flash 3: —
| Benchmark | Muse Spark 1.2 | Reka Flash 3 |
|---|---|---|
| LMArena Instruction Following | 1466 | — |
Long Context Not comparable
Muse Spark 1.2: 45.4 (#35), Reka Flash 3: —
| Benchmark | Muse Spark 1.2 | Reka Flash 3 |
|---|---|---|
| LMArena Longer Query | 1483 | — |
Writing & Preference Muse Spark 1.2 leads
Muse Spark 1.2: 72.6 (#14), Reka Flash 3: 43.8
| Benchmark | Muse Spark 1.2 | Reka Flash 3 |
|---|---|---|
| EQ-Bench Creative Writing | 1840 | 1228 |
| LMArena Text | 1486 | — |
| LMArena Creative Writing | 1444 | — |
| LMArena Multi-Turn | 1504 | — |
Frequently asked questions
Is Muse Spark 1.2 better than Reka Flash 3?
Muse Spark 1.2 has enough public results to be ranked (#44); Reka Flash 3 does not yet, so treat this comparison as directional.
Which is cheaper, Muse Spark 1.2 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 1.2 lists at $1.25 and $4.25.
Which has the bigger context window?
Muse Spark 1.2 does, with 1.05M tokens against 66K.
How many benchmarks do Muse Spark 1.2 and Reka Flash 3 share?
1 benchmark has published results for both models. Muse Spark 1.2 has 28 scored results on Noometry and Reka Flash 3 has 2.