Model comparison
Llama 3.1-405B vs Muse Spark 1.3
Muse Spark 1.3 is the stronger model overall, scoring 54.8 to 30.7 on the Noometry Index.
Last verified . 21 shared benchmarks.
MetaSummary
- They share 21 benchmarks with published results for both. Llama 3.1-405B scores higher in 0 categories and Muse Spark 1.3 in 9 categories; 9 gaps are clear of the uncertainty.
- The widest gap is in math, where Muse Spark 1.3 leads 73.1 to 18.4.
- The biggest single-benchmark swing is OTIS Mock AIME 2024-2025: 9.7% for Llama 3.1-405B and 99.2% for Muse Spark 1.3.
- Llama 3.1-405B has downloadable open weights; the other is API-only.
Side by side
| Llama 3.1-405B | Muse Spark 1.3 | |
|---|---|---|
| Provider | Meta | Meta |
| Noometry Index | 30.7 | 54.8 |
| Released | 2024-07-23 | 2026-09-02 |
| Weights | Open | Proprietary |
| Context window | — | 1.05M |
| Max output | — | 131K |
| Input $ / M tokens | — | $1.25 |
| Output $ / M tokens | — | $4.25 |
| Results tracked | 42 | 37 |
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Category by category
Coding Muse Spark 1.3 leads
Llama 3.1-405B: 33.1 (#262), Muse Spark 1.3: 56.6 (#21)
| Benchmark | Llama 3.1-405B | Muse Spark 1.3 |
|---|---|---|
| LMArena Coding | 1291 | 1514 |
| CursorBench | — | 41.6% |
| LMArena WebDev | — | 1657 |
| SciCode | — | 59.7% |
| WeirdML | 21.4% | — |
Agentic & Tool Use Muse Spark 1.3 leads
Llama 3.1-405B: 21.0 (#140), Muse Spark 1.3: 38.6 (#30)
| Benchmark | Llama 3.1-405B | Muse Spark 1.3 |
|---|---|---|
| APEX-Agents | — | 57.8% |
| TheAgentCompany | 7.4% | — |
| Cybench | 7.5% | — |
| GDP.pdf | — | 27.6% |
Reasoning Muse Spark 1.3 leads
Llama 3.1-405B: 16.8 (#300), Muse Spark 1.3: 54.0 (#27)
| Benchmark | Llama 3.1-405B | Muse Spark 1.3 |
|---|---|---|
| LMArena Hard Prompts | 1269 | 1503 |
| DTBench | 61.4% | 96.5% |
| Epoch Capabilities Index | 128.75 | 156.75 |
| SimpleBench | 23% | — |
| Kagi LLM Benchmark | 45% | — |
| NYT Connections (extended) | — | 85.1% |
| CritPt | — | 26% |
| Chess Puzzles | — | 38% |
| Mystery Game Puzzles | — | 25% |
| LMCA | — | 53.9% |
| Bench to the Future 3 | — | 0.14 |
| BIG-Bench Hard | 82.9% | — |
| ForecastBench | 59.9 | — |
| HellaSwag | 89.2% | — |
| PIQA | 85.9% | — |
| WinoGrande | 89.2% | — |
Math Muse Spark 1.3 leads
Llama 3.1-405B: 18.4 (#290), Muse Spark 1.3: 73.1 (#21)
| Benchmark | Llama 3.1-405B | Muse Spark 1.3 |
|---|---|---|
| OTIS Mock AIME 2024-2025 | 9.7% | 99.2% |
| LMArena Math | 1281 | 1494 |
| FrontierMath (Tiers 1-3) | — | 74.4% |
| FrontierMath Tier 4 | — | 46.3% |
| ProofBench | — | 58% |
| Omni-MATH | 24.9% | — |
| MATH Level 5 | 49.8% | — |
Knowledge Muse Spark 1.3 leads
Llama 3.1-405B: 30.4 (#227), Muse Spark 1.3: 42.6 (#95)
| Benchmark | Llama 3.1-405B | Muse Spark 1.3 |
|---|---|---|
| LMArena Expert | 1243 | 1516 |
| GPQA Diamond | 50.9% | — |
| MMLU-Pro | 72.3% | — |
| Confabulations | 17.6% | — |
| GPQA (HELM) | 52.2% | — |
| ARC (AI2) Challenge | 95.3% | — |
| MMLU | 84.5% | — |
| TriviaQA | 82.7% | — |
Multimodal Not comparable
Llama 3.1-405B: —, Muse Spark 1.3: 43.7 (#22)
| Benchmark | Llama 3.1-405B | Muse Spark 1.3 |
|---|---|---|
| LMArena Vision | — | 1309 |
| LMArena Document | — | 1471 |
Multilingual Muse Spark 1.3 leads
Llama 3.1-405B: 40.7 (#214), Muse Spark 1.3: 57.4 (#8)
| Benchmark | Llama 3.1-405B | Muse Spark 1.3 |
|---|---|---|
| LMArena Non-English | 1248 | 1481 |
| LMArena Chinese | 1242 | 1529 |
| LMArena French | 1279 | 1524 |
| LMArena German | 1252 | 1515 |
| LMArena Japanese | 1208 | 1474 |
| LMArena Korean | 1184 | 1501 |
| LMArena Russian | 1265 | 1490 |
| LMArena Spanish | 1260 | 1490 |
Instruction Following Muse Spark 1.3 leads
Llama 3.1-405B: 65.9 (#214), Muse Spark 1.3: 77.5 (#22)
| Benchmark | Llama 3.1-405B | Muse Spark 1.3 |
|---|---|---|
| LMArena Instruction Following | 1259 | 1477 |
| IFEval | 81.1% | — |
Long Context Muse Spark 1.3 leads
Llama 3.1-405B: 38.4 (#197), Muse Spark 1.3: 45.6 (#32)
| Benchmark | Llama 3.1-405B | Muse Spark 1.3 |
|---|---|---|
| LMArena Longer Query | 1266 | 1488 |
Writing & Preference Muse Spark 1.3 leads
Llama 3.1-405B: 38.9 (#251), Muse Spark 1.3: 73.6 (#9)
| Benchmark | Llama 3.1-405B | Muse Spark 1.3 |
|---|---|---|
| LMArena Text | 1284 | 1490 |
| LMArena Creative Writing | 1262 | 1455 |
| EQ-Bench Creative Writing | 870 | 1906 |
| LMArena Multi-Turn | 1297 | 1482 |
| WildBench | 78.3% | — |
Frequently asked questions
Is Llama 3.1-405B better than Muse Spark 1.3?
Muse Spark 1.3 is the stronger model overall, scoring 54.8 to 30.7 on the Noometry Index.
Is Llama 3.1-405B or Muse Spark 1.3 better for coding?
Muse Spark 1.3 scores higher on coding benchmarks: 56.6 versus 33.1 in the Noometry coding category.
How many benchmarks do Llama 3.1-405B and Muse Spark 1.3 share?
21 benchmarks have published results for both models. Llama 3.1-405B has 42 scored results on Noometry and Muse Spark 1.3 has 37.