Model comparison
Muse Spark 1.2 vs Sonar
Muse Spark 1.2 is the stronger model overall, scoring 50.3 to 38.5 on the Noometry Index. Sonar costs 2.0× less per token, which makes it the better buy when Muse Spark 1.2's lead doesn't matter for your workload.
Last verified . 0 shared benchmarks.
Meta
PerplexitySummary
- The widest gap is in reasoning, where Muse Spark 1.2 leads 51.3 to 21.1.
- Sonar is cheaper at $1 / $1 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 128K.
Side by side
| Muse Spark 1.2 | Sonar | |
|---|---|---|
| Provider | Meta | Perplexity |
| Noometry Index | 50.3 | 38.5 |
| Released | 2026-08-05 | 2024-01-01 |
| Weights | Proprietary | Proprietary |
| Context window | 1.05M | 128K |
| Max output | 131K | 4K |
| Input $ / M tokens | $1.25 | $1 |
| Output $ / M tokens | $4.25 | $1 |
| Results tracked | 31 | 7 |
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Category by category
Coding Muse Spark 1.2 leads
Muse Spark 1.2: 49.2 (#51), Sonar: 35.7 (#221)
| Benchmark | Muse Spark 1.2 | Sonar |
|---|---|---|
| DeepSWE | 54.9% | — |
| LMArena WebDev | 1533 | — |
| FrontierSWE | 12% | — |
| SciCode | 56.4% | — |
| WeirdML | 60.3% | — |
| LiveBench Coding | — | 35.1% |
| LMArena Coding | 1495 | — |
Agentic & Tool Use Not comparable
Muse Spark 1.2: 29.4 (#87), Sonar: —
| Benchmark | Muse Spark 1.2 | Sonar |
|---|---|---|
| APEX-Agents | 36.4% | — |
| GDP.pdf | 16% | — |
Reasoning Muse Spark 1.2 leads
Muse Spark 1.2: 51.3 (#34), Sonar: 21.1 (#227)
| Benchmark | Muse Spark 1.2 | Sonar |
|---|---|---|
| SimpleBench | 74.5% | — |
| NYT Connections (extended) | 79.2% | — |
| CritPt | 17.7% | — |
| LiveBench Reasoning | — | 46.3% |
| LMArena Hard Prompts | 1486 | — |
| DTBench | 94.7% | — |
| LiveBench Data Analysis | — | 37.9% |
| LMCA | 48.4% | — |
| Epoch Capabilities Index | 154.87 | — |
| LiveBench | — | 46.9% |
Math Muse Spark 1.2 leads
Muse Spark 1.2: 46.4 (#70), Sonar: 33.7 (#200)
| Benchmark | Muse Spark 1.2 | Sonar |
|---|---|---|
| ProofBench | 43% | — |
| LiveBench Math | — | 41.6% |
| LMArena Math | 1471 | — |
Knowledge Not comparable
Muse Spark 1.2: 54.1 (#53), Sonar: —
| Benchmark | Muse Spark 1.2 | Sonar |
|---|---|---|
| SimpleQA Verified | 60.3% | — |
| LMArena Expert | 1480 | — |
Multimodal Not comparable
Muse Spark 1.2: 43.4 (#25), Sonar: —
| Benchmark | Muse Spark 1.2 | Sonar |
|---|---|---|
| LMArena Vision | 1305 | — |
Multilingual Not comparable
Muse Spark 1.2: 57.1 (#11), Sonar: —
| Benchmark | Muse Spark 1.2 | Sonar |
|---|---|---|
| LMArena Non-English | 1478 | — |
| LMArena Chinese | 1511 | — |
| LMArena French | 1513 | — |
| LMArena Russian | 1487 | — |
| LMArena Spanish | 1498 | — |
Instruction Following Muse Spark 1.2 leads
Muse Spark 1.2: 76.7 (#36), Sonar: 71.4 (#150)
| Benchmark | Muse Spark 1.2 | Sonar |
|---|---|---|
| LiveBench Instruction Following | — | 76.2% |
| LMArena Instruction Following | 1461 | — |
Long Context Not comparable
Muse Spark 1.2: 45.2 (#48), Sonar: —
| Benchmark | Muse Spark 1.2 | Sonar |
|---|---|---|
| LMArena Longer Query | 1475 | — |
Writing & Preference Muse Spark 1.2 leads
Muse Spark 1.2: 72.3 (#14), Sonar: 52.6 (#167)
| Benchmark | Muse Spark 1.2 | Sonar |
|---|---|---|
| LMArena Text | 1482 | — |
| LMArena Creative Writing | 1449 | — |
| EQ-Bench Creative Writing | 1840 | — |
| LMArena Multi-Turn | 1494 | — |
| LiveBench Language | — | 44.1% |
Frequently asked questions
Is Muse Spark 1.2 better than Sonar?
Muse Spark 1.2 is the stronger model overall, scoring 50.3 to 38.5 on the Noometry Index. Sonar costs 2.0× less per token, which makes it the better buy when Muse Spark 1.2's lead doesn't matter for your workload.
Which is cheaper, Muse Spark 1.2 or Sonar?
Sonar is cheaper. It lists at $1 per million input tokens and $1 per million output tokens; Muse Spark 1.2 lists at $1.25 and $4.25.
Is Muse Spark 1.2 or Sonar better for coding?
Muse Spark 1.2 scores higher on coding benchmarks: 49.2 versus 35.7 in the Noometry coding category.
Which has the bigger context window?
Muse Spark 1.2 does, with 1.05M tokens against 128K.
How many benchmarks do Muse Spark 1.2 and Sonar share?
0 benchmarks have published results for both models. Muse Spark 1.2 has 31 scored results on Noometry and Sonar has 7.