Model comparison
Claude 3 Opus vs Muse Spark 1.2
Muse Spark 1.2 is the stronger model overall, scoring 50.3 to 29.5 on the Noometry Index.
Last verified . 21 shared benchmarks.
Summary
- They share 21 benchmarks with published results for both. Claude 3 Opus scores higher in 0 categories and Muse Spark 1.2 in 10 categories; 10 gaps are clear of the uncertainty.
- The widest gap is in reasoning, where Muse Spark 1.2 leads 51.3 to 14.6.
- The biggest single-benchmark swing is SimpleBench: 23.5% for Claude 3 Opus and 74.5% for Muse Spark 1.2.
Side by side
| Claude 3 Opus | Muse Spark 1.2 | |
|---|---|---|
| Provider | Anthropic | Meta |
| Noometry Index | 29.5 | 50.3 |
| Released | 2024-02-29 | 2026-08-05 |
| Weights | Proprietary | Proprietary |
| Context window | — | 1.05M |
| Max output | — | 131K |
| Input $ / M tokens | — | $1.25 |
| Output $ / M tokens | — | $4.25 |
| Results tracked | 46 | 31 |
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Category by category
Coding Muse Spark 1.2 leads
Claude 3 Opus: 32.9 (#267), Muse Spark 1.2: 49.2 (#51)
| Benchmark | Claude 3 Opus | Muse Spark 1.2 |
|---|---|---|
| WeirdML | 19.2% | 60.3% |
| LMArena Coding | 1264 | 1495 |
| DeepSWE | — | 54.9% |
| LMArena WebDev | — | 1533 |
| FrontierSWE | — | 12% |
| SciCode | — | 56.4% |
| BigCodeBench Instruct | 45.5% | — |
| LiveBench Coding | 38.6% | — |
| BigCodeBench Complete | 57.4% | — |
| HumanEval+ | 77.4% | — |
| MBPP+ | 73.3% | — |
Agentic & Tool Use Muse Spark 1.2 leads
Claude 3 Opus: 24.6 (#116), Muse Spark 1.2: 29.4 (#87)
| Benchmark | Claude 3 Opus | Muse Spark 1.2 |
|---|---|---|
| APEX-Agents | — | 36.4% |
| Cybench | 10% | — |
| GDP.pdf | — | 16% |
| METR Time Horizons | 29.5% | — |
Reasoning Muse Spark 1.2 leads
Claude 3 Opus: 14.6 (#324), Muse Spark 1.2: 51.3 (#34)
| Benchmark | Claude 3 Opus | Muse Spark 1.2 |
|---|---|---|
| SimpleBench | 23.5% | 74.5% |
| LMArena Hard Prompts | 1245 | 1486 |
| DTBench | 61.6% | 94.7% |
| LMCA | 17% | 48.4% |
| Epoch Capabilities Index | 126.91 | 154.87 |
| NYT Connections (extended) | — | 79.2% |
| CritPt | — | 17.7% |
| Chess Puzzles | 5% | — |
| EnigmaEval | 0.8% | — |
| LiveBench Reasoning | 40.6% | — |
| LiveBench Data Analysis | 57.9% | — |
| ForecastBench | 58.4 | — |
| LiveBench | 49.2% | — |
| WinoGrande | 88.5% | — |
Math Muse Spark 1.2 leads
Claude 3 Opus: 14.8 (#299), Muse Spark 1.2: 46.4 (#70)
| Benchmark | Claude 3 Opus | Muse Spark 1.2 |
|---|---|---|
| LMArena Math | 1273 | 1471 |
| OTIS Mock AIME 2024-2025 | 4.7% | — |
| ProofBench | — | 43% |
| LiveBench Math | 43.6% | — |
| MATH Level 5 | 37.5% | — |
Knowledge Muse Spark 1.2 leads
Claude 3 Opus: 24.5 (#267), Muse Spark 1.2: 54.1 (#53)
| Benchmark | Claude 3 Opus | Muse Spark 1.2 |
|---|---|---|
| SimpleQA Verified | 12.6% | 60.3% |
| LMArena Expert | 1223 | 1480 |
| GPQA Diamond | 47.2% | — |
| Confabulations | 22.7% | — |
| MMLU | 84.6% | — |
Multimodal Muse Spark 1.2 leads
Claude 3 Opus: 27.1 (#116), Muse Spark 1.2: 43.4 (#25)
| Benchmark | Claude 3 Opus | Muse Spark 1.2 |
|---|---|---|
| LMArena Vision | 1023 | 1305 |
Multilingual Muse Spark 1.2 leads
Claude 3 Opus: 41.4 (#207), Muse Spark 1.2: 57.1 (#11)
| Benchmark | Claude 3 Opus | Muse Spark 1.2 |
|---|---|---|
| LMArena Non-English | 1258 | 1478 |
| LMArena Chinese | 1248 | 1511 |
| LMArena French | 1275 | 1513 |
| LMArena Russian | 1280 | 1487 |
| LMArena Spanish | 1246 | 1498 |
| LMArena German | 1258 | — |
| LMArena Japanese | 1204 | — |
| LMArena Korean | 1187 | — |
Instruction Following Muse Spark 1.2 leads
Claude 3 Opus: 64.1 (#228), Muse Spark 1.2: 76.7 (#36)
| Benchmark | Claude 3 Opus | Muse Spark 1.2 |
|---|---|---|
| LMArena Instruction Following | 1248 | 1461 |
| LiveBench Instruction Following | 63.9% | — |
Long Context Muse Spark 1.2 leads
Claude 3 Opus: 38.2 (#202), Muse Spark 1.2: 45.2 (#48)
| Benchmark | Claude 3 Opus | Muse Spark 1.2 |
|---|---|---|
| LMArena Longer Query | 1259 | 1475 |
Writing & Preference Muse Spark 1.2 leads
Claude 3 Opus: 47.2 (#213), Muse Spark 1.2: 72.3 (#14)
| Benchmark | Claude 3 Opus | Muse Spark 1.2 |
|---|---|---|
| LMArena Text | 1262 | 1482 |
| LMArena Creative Writing | 1235 | 1449 |
| LMArena Multi-Turn | 1275 | 1494 |
| EQ-Bench Creative Writing | — | 1840 |
| LiveBench Language | 50.4% | — |
Frequently asked questions
Is Claude 3 Opus better than Muse Spark 1.2?
Muse Spark 1.2 is the stronger model overall, scoring 50.3 to 29.5 on the Noometry Index.
Is Claude 3 Opus or Muse Spark 1.2 better for coding?
Muse Spark 1.2 scores higher on coding benchmarks: 49.2 versus 32.9 in the Noometry coding category.
How many benchmarks do Claude 3 Opus and Muse Spark 1.2 share?
21 benchmarks have published results for both models. Claude 3 Opus has 46 scored results on Noometry and Muse Spark 1.2 has 31.