| { |
| "dataset": "WSB", |
| "n_prompts": 192, |
| "source_sha256": "579ffb6b9b069f6d3cdd32a76788998ec633a12426a0ebb7c9f83e6fb0d5b1fc", |
| "reference_systems": [ |
| "Suno v5", |
| "Suno v4.5", |
| "Suno v5.5", |
| "Suno v6", |
| "Suno v6 Wild", |
| "MiniMax Music 2.6", |
| "Mureka 9", |
| "YuE 1", |
| "SongBloom", |
| "LeVo 2", |
| "ACE-Step 1.5", |
| "HeartMuLa", |
| "DiffRhythm 2", |
| "Muse", |
| "MiniMax Music 3" |
| ], |
| "normalization": "z = (system mean - reference mean) / reference population std", |
| "reference_statistics": { |
| "songbench_global_avg": { |
| "mean": 6.121283377976191, |
| "population_std": 0.7357457614725659 |
| }, |
| "songeval_global_avg": { |
| "mean": 4.015471256944445, |
| "population_std": 0.40701956006795303 |
| }, |
| "songbench_musicality": { |
| "mean": 5.265866701388889, |
| "population_std": 0.7053243399537521 |
| }, |
| "songeval_musicality": { |
| "mean": 3.9703476041666663, |
| "population_std": 0.4051162346821886 |
| }, |
| "mulan": { |
| "mean": 0.4186944833891175, |
| "population_std": 0.08094623772340859 |
| }, |
| "allmusiccaps": { |
| "mean": 0.3533851072454733, |
| "population_std": 0.06820180734302435 |
| }, |
| "control_overall": { |
| "mean": 4.248089863722948, |
| "population_std": 0.4756164261685128 |
| } |
| }, |
| "quality_weights": { |
| "songbench": 0.6666666666666666, |
| "songeval": 0.33333333333333337 |
| }, |
| "alignment_weights": { |
| "mulan": 0.3333333333333333, |
| "allmusiccaps": 0.3333333333333333, |
| "control_overall": 0.3333333333333333 |
| }, |
| "values": { |
| "YuE2": { |
| "quality_global_avg": 0.7552819777715396, |
| "quality_musicality": 0.8078339775660601, |
| "alignment": 0.9210758825216073, |
| "audiobox_pq": 8.25979095697403 |
| }, |
| "YuE2 (best-of-8)": { |
| "quality_global_avg": 0.9926775311951548, |
| "quality_musicality": 1.1764900036325572, |
| "alignment": 0.8913402282808791, |
| "audiobox_pq": 8.271365446348986 |
| }, |
| "ACE-Step 1.5": { |
| "quality_global_avg": -0.2376035047550664, |
| "quality_musicality": -0.23714600301672967, |
| "alignment": 0.47315715541685155, |
| "audiobox_pq": 8.051833018660545 |
| }, |
| "DiffRhythm 2": { |
| "quality_global_avg": -1.1980739812149017, |
| "quality_musicality": -1.1559112521857333, |
| "alignment": -0.41604199452568785, |
| "audiobox_pq": 7.978225273390611 |
| }, |
| "HeartMuLa": { |
| "quality_global_avg": 0.5544151508643054, |
| "quality_musicality": 0.6806476331364909, |
| "alignment": -1.0459382238546173, |
| "audiobox_pq": 8.293305036922296 |
| }, |
| "LeVo 2": { |
| "quality_global_avg": 0.19076064388585245, |
| "quality_musicality": 0.19203107542441739, |
| "alignment": -0.8946697129809009, |
| "audiobox_pq": 8.396623315910498 |
| }, |
| "MiniMax Music 2.6": { |
| "quality_global_avg": 0.24999255629041012, |
| "quality_musicality": 0.2385294260172236, |
| "alignment": 0.317708040770442, |
| "audiobox_pq": 8.171058195332686 |
| }, |
| "MiniMax Music 3": { |
| "quality_global_avg": 0.21521779684943682, |
| "quality_musicality": 0.13768736380561403, |
| "alignment": 0.06167958802908772, |
| "audiobox_pq": 8.28245102117459 |
| }, |
| "Mureka 9": { |
| "quality_global_avg": 1.063838458020569, |
| "quality_musicality": 1.0622475778213865, |
| "alignment": 0.6353722959962361, |
| "audiobox_pq": 8.022609589000544 |
| }, |
| "Muse": { |
| "quality_global_avg": -0.2640126435903063, |
| "quality_musicality": -0.28400814299371513, |
| "alignment": -0.027277572405822206, |
| "audiobox_pq": 8.051745663086573 |
| }, |
| "SongBloom": { |
| "quality_global_avg": -2.3727929454241776, |
| "quality_musicality": -2.3469029518895956, |
| "alignment": -2.25355622224482, |
| "audiobox_pq": 8.153916046023369 |
| }, |
| "Suno v4.5": { |
| "quality_global_avg": 0.8114848653568392, |
| "quality_musicality": 0.822345947368047, |
| "alignment": 0.6266794053102317, |
| "audiobox_pq": 8.254062737027803 |
| }, |
| "Suno v5": { |
| "quality_global_avg": 0.9607654088358881, |
| "quality_musicality": 0.9616318815497118, |
| "alignment": 1.1513277335650094, |
| "audiobox_pq": 8.169838989774385 |
| }, |
| "Suno v5.5": { |
| "quality_global_avg": 0.7014955760788759, |
| "quality_musicality": 0.6606381030854666, |
| "alignment": 0.7992264544775121, |
| "audiobox_pq": 8.195489337046942 |
| }, |
| "Suno v6": { |
| "quality_global_avg": 0.6341407893639396, |
| "quality_musicality": 0.6097852138267854, |
| "alignment": 0.9417981546473502, |
| "audiobox_pq": 8.129587392012278 |
| }, |
| "Suno v6 Wild": { |
| "quality_global_avg": 0.43765333454931554, |
| "quality_musicality": 0.44783537273294216, |
| "alignment": 0.9563182017109547, |
| "audiobox_pq": 8.178526304662228 |
| }, |
| "YuE 1": { |
| "quality_global_avg": -1.7472815051109758, |
| "quality_musicality": -1.7894112446823107, |
| "alignment": -1.3257833039118254, |
| "audiobox_pq": 7.868339642882347 |
| } |
| }, |
| "sensitivity": [ |
| { |
| "variant": "global_avg", |
| "songbench_weight": 0.5, |
| "best_public": "HeartMuLa", |
| "yue2_minus_best_public": -0.02710930368588904, |
| "rank_yue2": 6, |
| "rank_bo8": 3, |
| "ranking": [ |
| "Mureka 9", |
| "Suno v5", |
| "YuE2 (best-of-8)", |
| "Suno v4.5", |
| "HeartMuLa", |
| "YuE2", |
| "Suno v6", |
| "Suno v5.5", |
| "Suno v6 Wild", |
| "MiniMax Music 2.6", |
| "MiniMax Music 3", |
| "LeVo 2", |
| "ACE-Step 1.5", |
| "Muse", |
| "DiffRhythm 2", |
| "YuE 1", |
| "SongBloom" |
| ] |
| }, |
| { |
| "variant": "global_avg", |
| "songbench_weight": 0.6, |
| "best_public": "HeartMuLa", |
| "yue2_minus_best_public": 0.10967637466998481, |
| "rank_yue2": 5, |
| "rank_bo8": 2, |
| "ranking": [ |
| "Mureka 9", |
| "YuE2 (best-of-8)", |
| "Suno v5", |
| "Suno v4.5", |
| "YuE2", |
| "Suno v5.5", |
| "Suno v6", |
| "HeartMuLa", |
| "Suno v6 Wild", |
| "MiniMax Music 2.6", |
| "MiniMax Music 3", |
| "LeVo 2", |
| "ACE-Step 1.5", |
| "Muse", |
| "DiffRhythm 2", |
| "YuE 1", |
| "SongBloom" |
| ] |
| }, |
| { |
| "variant": "global_avg", |
| "songbench_weight": 0.6666666666666666, |
| "best_public": "HeartMuLa", |
| "yue2_minus_best_public": 0.20086682690723423, |
| "rank_yue2": 5, |
| "rank_bo8": 2, |
| "ranking": [ |
| "Mureka 9", |
| "YuE2 (best-of-8)", |
| "Suno v5", |
| "Suno v4.5", |
| "YuE2", |
| "Suno v5.5", |
| "Suno v6", |
| "HeartMuLa", |
| "Suno v6 Wild", |
| "MiniMax Music 2.6", |
| "MiniMax Music 3", |
| "LeVo 2", |
| "ACE-Step 1.5", |
| "Muse", |
| "DiffRhythm 2", |
| "YuE 1", |
| "SongBloom" |
| ] |
| }, |
| { |
| "variant": "global_avg", |
| "songbench_weight": 0.7, |
| "best_public": "HeartMuLa", |
| "yue2_minus_best_public": 0.24646205302585877, |
| "rank_yue2": 5, |
| "rank_bo8": 2, |
| "ranking": [ |
| "Mureka 9", |
| "YuE2 (best-of-8)", |
| "Suno v5", |
| "Suno v4.5", |
| "YuE2", |
| "Suno v5.5", |
| "Suno v6", |
| "HeartMuLa", |
| "Suno v6 Wild", |
| "MiniMax Music 2.6", |
| "MiniMax Music 3", |
| "LeVo 2", |
| "ACE-Step 1.5", |
| "Muse", |
| "DiffRhythm 2", |
| "YuE 1", |
| "SongBloom" |
| ] |
| }, |
| { |
| "variant": "global_avg", |
| "songbench_weight": 0.75, |
| "best_public": "HeartMuLa", |
| "yue2_minus_best_public": 0.3148548922037958, |
| "rank_yue2": 5, |
| "rank_bo8": 2, |
| "ranking": [ |
| "Mureka 9", |
| "YuE2 (best-of-8)", |
| "Suno v5", |
| "Suno v4.5", |
| "YuE2", |
| "Suno v5.5", |
| "Suno v6", |
| "HeartMuLa", |
| "Suno v6 Wild", |
| "MiniMax Music 2.6", |
| "MiniMax Music 3", |
| "LeVo 2", |
| "ACE-Step 1.5", |
| "Muse", |
| "DiffRhythm 2", |
| "YuE 1", |
| "SongBloom" |
| ] |
| }, |
| { |
| "variant": "global_avg", |
| "songbench_weight": 0.8, |
| "best_public": "HeartMuLa", |
| "yue2_minus_best_public": 0.3832477313817329, |
| "rank_yue2": 5, |
| "rank_bo8": 2, |
| "ranking": [ |
| "Mureka 9", |
| "YuE2 (best-of-8)", |
| "Suno v5", |
| "Suno v4.5", |
| "YuE2", |
| "Suno v5.5", |
| "Suno v6", |
| "Suno v6 Wild", |
| "HeartMuLa", |
| "MiniMax Music 2.6", |
| "LeVo 2", |
| "MiniMax Music 3", |
| "ACE-Step 1.5", |
| "Muse", |
| "DiffRhythm 2", |
| "YuE 1", |
| "SongBloom" |
| ] |
| }, |
| { |
| "variant": "musicality", |
| "songbench_weight": 0.5, |
| "best_public": "HeartMuLa", |
| "yue2_minus_best_public": -0.10071426090411806, |
| "rank_yue2": 6, |
| "rank_bo8": 1, |
| "ranking": [ |
| "YuE2 (best-of-8)", |
| "Mureka 9", |
| "Suno v5", |
| "HeartMuLa", |
| "Suno v4.5", |
| "YuE2", |
| "Suno v6", |
| "Suno v5.5", |
| "Suno v6 Wild", |
| "MiniMax Music 2.6", |
| "LeVo 2", |
| "MiniMax Music 3", |
| "ACE-Step 1.5", |
| "Muse", |
| "DiffRhythm 2", |
| "YuE 1", |
| "SongBloom" |
| ] |
| }, |
| { |
| "variant": "musicality", |
| "songbench_weight": 0.6, |
| "best_public": "HeartMuLa", |
| "yue2_minus_best_public": 0.036026102296094376, |
| "rank_yue2": 5, |
| "rank_bo8": 1, |
| "ranking": [ |
| "YuE2 (best-of-8)", |
| "Mureka 9", |
| "Suno v5", |
| "Suno v4.5", |
| "YuE2", |
| "HeartMuLa", |
| "Suno v5.5", |
| "Suno v6", |
| "Suno v6 Wild", |
| "MiniMax Music 2.6", |
| "LeVo 2", |
| "MiniMax Music 3", |
| "ACE-Step 1.5", |
| "Muse", |
| "DiffRhythm 2", |
| "YuE 1", |
| "SongBloom" |
| ] |
| }, |
| { |
| "variant": "musicality", |
| "songbench_weight": 0.6666666666666666, |
| "best_public": "HeartMuLa", |
| "yue2_minus_best_public": 0.12718634442956922, |
| "rank_yue2": 5, |
| "rank_bo8": 1, |
| "ranking": [ |
| "YuE2 (best-of-8)", |
| "Mureka 9", |
| "Suno v5", |
| "Suno v4.5", |
| "YuE2", |
| "HeartMuLa", |
| "Suno v5.5", |
| "Suno v6", |
| "Suno v6 Wild", |
| "MiniMax Music 2.6", |
| "LeVo 2", |
| "MiniMax Music 3", |
| "ACE-Step 1.5", |
| "Muse", |
| "DiffRhythm 2", |
| "YuE 1", |
| "SongBloom" |
| ] |
| }, |
| { |
| "variant": "musicality", |
| "songbench_weight": 0.7, |
| "best_public": "HeartMuLa", |
| "yue2_minus_best_public": 0.1727664654963067, |
| "rank_yue2": 5, |
| "rank_bo8": 1, |
| "ranking": [ |
| "YuE2 (best-of-8)", |
| "Mureka 9", |
| "Suno v5", |
| "Suno v4.5", |
| "YuE2", |
| "Suno v5.5", |
| "HeartMuLa", |
| "Suno v6", |
| "Suno v6 Wild", |
| "MiniMax Music 2.6", |
| "LeVo 2", |
| "MiniMax Music 3", |
| "ACE-Step 1.5", |
| "Muse", |
| "DiffRhythm 2", |
| "YuE 1", |
| "SongBloom" |
| ] |
| }, |
| { |
| "variant": "musicality", |
| "songbench_weight": 0.75, |
| "best_public": "HeartMuLa", |
| "yue2_minus_best_public": 0.24113664709641314, |
| "rank_yue2": 4, |
| "rank_bo8": 1, |
| "ranking": [ |
| "YuE2 (best-of-8)", |
| "Mureka 9", |
| "Suno v5", |
| "YuE2", |
| "Suno v4.5", |
| "Suno v5.5", |
| "Suno v6", |
| "HeartMuLa", |
| "Suno v6 Wild", |
| "MiniMax Music 2.6", |
| "LeVo 2", |
| "MiniMax Music 3", |
| "ACE-Step 1.5", |
| "Muse", |
| "DiffRhythm 2", |
| "YuE 1", |
| "SongBloom" |
| ] |
| }, |
| { |
| "variant": "musicality", |
| "songbench_weight": 0.8, |
| "best_public": "HeartMuLa", |
| "yue2_minus_best_public": 0.30950682869651935, |
| "rank_yue2": 4, |
| "rank_bo8": 1, |
| "ranking": [ |
| "YuE2 (best-of-8)", |
| "Mureka 9", |
| "Suno v5", |
| "YuE2", |
| "Suno v4.5", |
| "Suno v5.5", |
| "Suno v6", |
| "HeartMuLa", |
| "Suno v6 Wild", |
| "MiniMax Music 2.6", |
| "LeVo 2", |
| "MiniMax Music 3", |
| "ACE-Step 1.5", |
| "Muse", |
| "DiffRhythm 2", |
| "YuE 1", |
| "SongBloom" |
| ] |
| } |
| ], |
| "display_normalization": { |
| "formula": "index = 10 + 80 * (composite - min) / (max - min)", |
| "display_range": [ |
| 10, |
| 90 |
| ], |
| "axis_range": [ |
| 0, |
| 100 |
| ], |
| "endpoint_systems": [ |
| "YuE2", |
| "YuE2 (best-of-8)", |
| "ACE-Step 1.5", |
| "DiffRhythm 2", |
| "HeartMuLa", |
| "LeVo 2", |
| "MiniMax Music 2.6", |
| "MiniMax Music 3", |
| "Mureka 9", |
| "Muse", |
| "SongBloom", |
| "Suno v4.5", |
| "Suno v5", |
| "Suno v5.5", |
| "Suno v6", |
| "Suno v6 Wild", |
| "YuE 1" |
| ], |
| "bounds": { |
| "quality_global_avg": { |
| "min": -2.3727929454241776, |
| "max": 1.063838458020569 |
| }, |
| "quality_musicality": { |
| "min": -2.3469029518895956, |
| "max": 1.1764900036325572 |
| }, |
| "alignment": { |
| "min": -2.25355622224482, |
| "max": 1.1513277335650094 |
| } |
| }, |
| "scope": "Observed extrema across the frozen 17-setting WSB comparison." |
| }, |
| "display_values": { |
| "YuE2": { |
| "quality_global_avg": 82.81723422675485, |
| "quality_musicality": 81.6295223219151, |
| "alignment": 84.59008050713697 |
| }, |
| "YuE2 (best-of-8)": { |
| "quality_global_avg": 88.34347258180588, |
| "quality_musicality": 90.0, |
| "alignment": 83.89142164823544 |
| }, |
| "ACE-Step 1.5": { |
| "quality_global_avg": 59.70424092683039, |
| "quality_musicality": 57.90284763591369, |
| "alignment": 74.06593383035025 |
| }, |
| "DiffRhythm 2": { |
| "quality_global_avg": 37.34582389095981, |
| "quality_musicality": 37.04192724997628, |
| "alignment": 53.17361182506653 |
| }, |
| "HeartMuLa": { |
| "quality_global_avg": 78.1413338271742, |
| "quality_musicality": 78.7417071724812, |
| "alignment": 38.373783402036175 |
| }, |
| "LeVo 2": { |
| "quality_global_avg": 69.67596261246808, |
| "quality_musicality": 67.6474792193652, |
| "alignment": 41.9279370903721 |
| }, |
| "MiniMax Music 2.6": { |
| "quality_global_avg": 71.0547991637534, |
| "quality_musicality": 68.70324225641005, |
| "alignment": 70.41355409197678 |
| }, |
| "MiniMax Music 3": { |
| "quality_global_avg": 70.24529112268468, |
| "quality_musicality": 66.41358422542463, |
| "alignment": 64.3979962976035 |
| }, |
| "Mureka 9": { |
| "quality_global_avg": 90.0, |
| "quality_musicality": 87.40608152985898, |
| "alignment": 77.87728582201137 |
| }, |
| "Muse": { |
| "quality_global_avg": 59.08947290000577, |
| "quality_musicality": 56.83882462017735, |
| "alignment": 62.30788899081859 |
| }, |
| "SongBloom": { |
| "quality_global_avg": 10.0, |
| "quality_musicality": 10.0, |
| "alignment": 10.0 |
| }, |
| "Suno v4.5": { |
| "quality_global_avg": 84.12555929249136, |
| "quality_musicality": 81.95902220989649, |
| "alignment": 77.67304060722402 |
| }, |
| "Suno v5": { |
| "quality_global_avg": 87.60060275113905, |
| "quality_musicality": 85.12156322510432, |
| "alignment": 90.0 |
| }, |
| "Suno v5.5": { |
| "quality_global_avg": 81.56516159216855, |
| "quality_musicality": 78.28738305243859, |
| "alignment": 81.72714762306776 |
| }, |
| "Suno v6": { |
| "quality_global_avg": 79.9972358228254, |
| "quality_musicality": 77.13274853053025, |
| "alignment": 85.0769639932043 |
| }, |
| "Suno v6 Wild": { |
| "quality_global_avg": 75.42328111548792, |
| "quality_musicality": 73.45561474186167, |
| "alignment": 85.41812210025412 |
| }, |
| "YuE 1": { |
| "quality_global_avg": 24.561036477434577, |
| "quality_musicality": 22.65806486519848, |
| "alignment": 31.798638200280863 |
| } |
| }, |
| "per_song_validation": { |
| "systems": 17, |
| "records": 3264, |
| "absolute_tolerance": 1e-10 |
| }, |
| "interpretation": [ |
| "Descriptive standardized composites, not percentages or validated new evaluators.", |
| "Observed extrema map to 10 and 90 on 0–100 axes, leaving symmetric display margins.", |
| "All 15 external baselines, including HeartMuLa and both Suno v6 variants, define one frozen WSB reference.", |
| "YuE2 and Bo8 are excluded from the 15-system z-score standardization reference.", |
| "Q3O retains recorded prompt weights, which differ on some selected records.", |
| "Evaluator reuse and candidate-selection protocols remain as documented in Tables 1–2." |
| ], |
| "source": "benchmark-results.csv", |
| "snapshot": "2026-09-12" |
| } |
|
|
