Model comparison
Muse Spark 1.1 vs Yi-Lightning
Muse Spark 1.1 is the stronger model overall, scoring 49.9 to 37.1 on the Noometry Index.
Last verified . 17 shared benchmarks.
MetaSummary
- They share 17 benchmarks with published results for both. Muse Spark 1.1 scores higher in 8 categories and Yi-Lightning in 0 categories; 8 gaps are clear of the uncertainty.
- The widest gap is in coding, where Muse Spark 1.1 leads 51.3 to 27.4.
Side by side
| Muse Spark 1.1 | Yi-Lightning | |
|---|---|---|
| Provider | Meta | 01.AI |
| Noometry Index | 49.9 | 37.1 |
| Released | 2026-04-08 | 2024-12-02 |
| Weights | Proprietary | Proprietary |
| Context window | 1.05M | — |
| Max output | 131K | — |
| Input $ / M tokens | $1.25 | — |
| Output $ / M tokens | $4.25 | — |
| Results tracked | 37 | 18 |
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Category by category
Coding Muse Spark 1.1 leads
Muse Spark 1.1: 51.3 (#40), Yi-Lightning: 27.4 (#320)
| Benchmark | Muse Spark 1.1 | Yi-Lightning |
|---|---|---|
| LMArena Coding | 1498 | 1312 |
| DeepSWE | 53.3% | — |
| Aider Polyglot | — | 12.9% |
| LMArena WebDev | 1542 | — |
| SciCode | 58.8% | — |
Agentic & Tool Use Not comparable
Muse Spark 1.1: 30.8 (#73), Yi-Lightning: —
| Benchmark | Muse Spark 1.1 | Yi-Lightning |
|---|---|---|
| APEX-Agents | 31.8% | — |
| τ²-bench Banking | 40.5% | — |
| GBAEval | 7.9% | — |
| GDP.pdf | 15% | — |
| Vending-Bench 2 | 6,520 | — |
Reasoning Muse Spark 1.1 leads
Muse Spark 1.1: 47.1 (#44), Yi-Lightning: 25.9 (#139)
| Benchmark | Muse Spark 1.1 | Yi-Lightning |
|---|---|---|
| LMArena Hard Prompts | 1486 | 1302 |
| NYT Connections (extended) | 84.9% | — |
| CritPt | 15.1% | — |
| DTBench | 94.4% | — |
| LMCA | 49.9% | — |
| Surface Evolver Bench | 52.5% | — |
| Epoch Capabilities Index | 154.21 | — |
Math Muse Spark 1.1 leads
Muse Spark 1.1: 45.5 (#76), Yi-Lightning: 36.2 (#172)
| Benchmark | Muse Spark 1.1 | Yi-Lightning |
|---|---|---|
| LMArena Math | 1483 | 1300 |
| ProofBench | 39% | — |
Knowledge Muse Spark 1.1 leads
Muse Spark 1.1: 53.1 (#59), Yi-Lightning: 35.4 (#185)
| Benchmark | Muse Spark 1.1 | Yi-Lightning |
|---|---|---|
| LMArena Expert | 1478 | 1286 |
| SimpleQA Verified | 57.8% | — |
Multimodal Not comparable
Muse Spark 1.1: 42.6 (#29), Yi-Lightning: —
| Benchmark | Muse Spark 1.1 | Yi-Lightning |
|---|---|---|
| LMArena Vision | 1293 | — |
| LMArena Document | 1465 | — |
Multilingual Muse Spark 1.1 leads
Muse Spark 1.1: 56.7 (#17), Yi-Lightning: 42.2 (#196)
| Benchmark | Muse Spark 1.1 | Yi-Lightning |
|---|---|---|
| LMArena Non-English | 1472 | 1269 |
| LMArena Chinese | 1518 | 1320 |
| LMArena French | 1494 | 1305 |
| LMArena German | 1466 | 1267 |
| LMArena Japanese | 1451 | 1228 |
| LMArena Korean | 1458 | 1192 |
| LMArena Russian | 1483 | 1255 |
| LMArena Spanish | 1464 | 1315 |
Instruction Following Muse Spark 1.1 leads
Muse Spark 1.1: 76.5 (#39), Yi-Lightning: 67.4 (#196)
| Benchmark | Muse Spark 1.1 | Yi-Lightning |
|---|---|---|
| LMArena Instruction Following | 1457 | 1278 |
Long Context Muse Spark 1.1 leads
Muse Spark 1.1: 44.8 (#58), Yi-Lightning: 39.4 (#181)
| Benchmark | Muse Spark 1.1 | Yi-Lightning |
|---|---|---|
| LMArena Longer Query | 1462 | 1297 |
Writing & Preference Muse Spark 1.1 leads
Muse Spark 1.1: 73.4 (#11), Yi-Lightning: 50.2 (#184)
| Benchmark | Muse Spark 1.1 | Yi-Lightning |
|---|---|---|
| LMArena Text | 1479 | 1302 |
| LMArena Creative Writing | 1437 | 1280 |
| LMArena Multi-Turn | 1485 | 1311 |
| EQ-Bench Creative Writing | 1927 | — |
| EQ-Bench 4 | 1260 | — |
Frequently asked questions
Is Muse Spark 1.1 better than Yi-Lightning?
Muse Spark 1.1 is the stronger model overall, scoring 49.9 to 37.1 on the Noometry Index.
Is Muse Spark 1.1 or Yi-Lightning better for coding?
Muse Spark 1.1 scores higher on coding benchmarks: 51.3 versus 27.4 in the Noometry coding category.
How many benchmarks do Muse Spark 1.1 and Yi-Lightning share?
17 benchmarks have published results for both models. Muse Spark 1.1 has 37 scored results on Noometry and Yi-Lightning has 18.