# Muse Spark 1.3 > Source: Benchize (https://benchize.com) — https://benchize.com/models/muse-spark-1-3. When citing or reusing this content, credit "Benchize" and link to https://benchize.com/models/muse-spark-1-3. Meta Canonical URL: https://benchize.com/models/muse-spark-1-3 Last updated: Wed, 21 Oct 2026 18:52:20 GMT Reproduction and quotation must name Benchize, link to the canonical HTML URL, and retain individual source citations. Meta ## Benchmarks | Benchmark | Score | ± | Rank | Cost | Source | | | --- | --- | --- | --- | --- | --- | --- | | [PRBench Legal](https://benchize.com/benchmarks/scale%3Aprbench-legal.md) | 61.56source score | CI 59.84–63.28 | 1 / 26 | — | [scale](https://labs.scale.com/leaderboard/prbench-legal) | | | ### Original source values \| Metric \| Value \| Unit \| Scope \| Direction \| \| --- \| --- \| --- \| --- \| --- \| \| `score` \| 61.56 \| source_score \| reported \| Higher is better \| ### Configuration Reasoning effort unknown Model configuration Muse Spark 1.3 sourceModelVersion Not reported thinkingEnabled Not reported ### Reported statistics Uncertainty Confidence interval: 59.84–63.28 contaminationWarning Not reported rank 1 reportedConfidenceHalfWidth 1.72 ### Source [Original source](https://labs.scale.com/leaderboard/prbench-legal) Source scale Original model label Muse Spark 1.3 Observed 2026-10-21T16:35:35.197Z Evidence SHA-256 `9e2ca4e9350870cf508bf5fff603d0b795c81f7974a0ab980312bbbfa0785067` Source locator `/rows/0` | | | | | | | | [Creative Writing v3](https://benchize.com/benchmarks/eq-bench%3Acreative-writing-v3.md) | 1,905.9elo | — | 14 / 90 | — | [eq bench · creative-writing-v3](https://eqbench.com/creative_writing.js) | | | ### Original source values \| Metric \| Value \| Unit \| Scope \| Direction \| \| --- \| --- \| --- \| --- \| --- \| \| `elo_score` \| 1905.9 \| elo \| overall \| Higher is better \| \| `creative_writing_score` \| 16.70 \| rubric_score \| overall \| Higher is better \| ### Configuration interactiveAdjustments none protocol creative-writing-v3 sourceModelVersion muse-spark-1.3 ### Source [Original source](https://eqbench.com/creative_writing.js) Source eq bench Original model label muse-spark-1.3 Source version creative-writing-v3 Observed 2026-10-21T16:35:01.421Z Evidence SHA-256 `722ddb132e8d3a5e5c39b8d445f8475f3f7e24893a007260c6f3e3cce5c1ee18` Source locator `/leaderboardDataCreativeWritingV3/15` | | | | | | | | [TubeLab Scriptwriting](https://benchize.com/benchmarks/tubelab%3Ascriptwriting.md) | 72.8% | — | 15 / 16 | 0.29ratio | [tubelab](https://tubelab.net/_next/static/chunks/pages/benchmark/scriptwriting-7ad7196ff3093ad4.js) | | | ### Original source values \| Metric \| Value \| Unit \| Scope \| Direction \| \| --- \| --- \| --- \| --- \| --- \| \| `quality` \| 72.8 \| percent \| source_reported \| Higher is better \| \| `craft` \| 72.8 \| percent \| source_reported \| Higher is better \| \| `relative_cost_per_script` \| 0.29 \| ratio \| source_reported \| Lower is better \| \| `script_time` \| 4.3 \| minutes \| source_reported \| Lower is better \| \| `hook` \| 7.2 \| score_out_of_10 \| craft_rubric \| Higher is better \| \| `retention` \| 7.1 \| score_out_of_10 \| craft_rubric \| Higher is better \| \| `storytelling` \| 6.7 \| score_out_of_10 \| craft_rubric \| Higher is better \| \| `voiceMatch` \| 7.1 \| score_out_of_10 \| craft_rubric \| Higher is better \| \| `pacing` \| 7.2 \| score_out_of_10 \| craft_rubric \| Higher is better \| \| `clarity` \| 8.3 \| score_out_of_10 \| craft_rubric \| Higher is better \| ### Configuration judgingProtocol blind_model_judges Reasoning effort unknown taskCount 12 ### Reported statistics confidence {"high":78.8,"low":66.6} headToHead {"losses":8,"ties":0,"winPercent":35,"wins":4} rank 20 ### Source [Original source](https://tubelab.net/_next/static/chunks/pages/benchmark/scriptwriting-7ad7196ff3093ad4.js) Source tubelab Original model label Muse Spark 1.3 Observed 2026-10-21T16:34:03.856Z Evidence SHA-256 `72f9d867f388256af8fc6dca12e8c7b6f1ddcbb97f0712da339b73102686761f` Source locator `/rows/19` | | | | | | | | [Humanity's Last Exam (Diamond)](https://benchize.com/benchmarks/scale%3Ahle-diamond.md) | 25.4source score | CI 22.7–28.1 | 11 / 12 | — | [scale](https://labs.scale.com/leaderboard/hle-diamond) | | | ### Original source values \| Metric \| Value \| Unit \| Scope \| Direction \| \| --- \| --- \| --- \| --- \| --- \| \| `score` \| 25.4 \| source_score \| reported \| Higher is better \| ### Configuration Reasoning effort unknown Model configuration muse-spark-1.3 sourceModelVersion Not reported thinkingEnabled Not reported ### Reported statistics Uncertainty Confidence interval: 22.7–28.1 contaminationWarning Potential contamination warning: This model was evaluated after the public release of HLE, allowing model builder access to the prompts and solutions. rank 12 reportedConfidenceHalfWidth 2.7 ### Source [Original source](https://labs.scale.com/leaderboard/hle-diamond) Source scale Original model label muse-spark-1.3 Observed 2026-10-21T16:35:27.820Z Evidence SHA-256 `c60d42f5aacdf787d9ccc8b70817766d86707776a7f8b44ef0337cb9ae60bf20` Source locator `/rows/11` | | | | | | | | [Rapidata SVG generation — Alignment](https://benchize.com/benchmarks/rapidata%3Asvg%3Arlb_1MFkk9yZHssERh.md) | 1,101.14elo | CI 1,076.51–1,125.76 | 16 / 37 | — | [rapidata · v1](https://api.rapidata.ai/benchmark/bmk_1MFkc3sXfbKCqf/standings/query?leaderboard_id%5Beq%5D=rlb_1MFkk9yZHssERh) | | | ### Original source values \| Metric \| Value \| Unit \| Scope \| Direction \| \| --- \| --- \| --- \| --- \| --- \| \| `elo` \| 1101.1369905206755 \| elo \| rlb_1MFkk9yZHssERh \| Higher is better \| ### Configuration benchmarkId bmk_1MFkc3sXfbKCqf criterion rlb_1MFkk9yZHssERh participantId par_1U5GLtvnzDJIgG sourceModelVersion muse-spark-1.3 weighted false ### Reported statistics Uncertainty Confidence interval: 1,076.51–1,125.76 confidenceIntervalLowerOffset 24.623750849131056 confidenceIntervalUpperOffset 24.623750849131056 totalMatches 4528 wins 2569 ### Source [Original source](https://api.rapidata.ai/benchmark/bmk_1MFkc3sXfbKCqf/standings/query?leaderboard_id%5Beq%5D=rlb_1MFkk9yZHssERh) Source rapidata Original model label muse-spark-1.3 Source version v1 Observed 2026-10-21T16:37:40.342Z Evidence SHA-256 `2f5c8d08728735790b500d930d71b66f04253f1209f7c1c3da0db0846c163fcf` Source locator `/items/27` | | | | | | | | [OpenVibeEval Accessibility](https://benchize.com/benchmarks/openvibeeval%3Aaccessibility.md) | 71 | — | 18 / 26 | — | [openvibeeval](https://openvibeeval.com/leaderboard/) | | | ### Original source values \| Metric \| Value \| Unit \| Scope \| Direction \| \| --- \| --- \| --- \| --- \| --- \| \| `adjusted_score` \| 71 \| score \| sample_size_adjusted_accessibility \| Higher is better \| ### Configuration Reasoning effort unknown Model configuration Muse Spark 1.3 thinkingEnabled Not reported ### Reported statistics runCount 8 ### Source [Original source](https://openvibeeval.com/leaderboard/) Source openvibeeval Original model label Muse Spark 1.3 Evaluated 2026-09-03 Observed 2026-10-21T16:32:04.885Z Evidence SHA-256 `9b2e7d6060910e3dc7083a6a7f67377601ce78806b2b6b7693cf8d047dd63fbb` Source locator `/rows/5` | | | | | | | | [SimpleBench](https://benchize.com/benchmarks/simplebench%3Aavg-at-5.md) | 81.8% | — | 6 / 62 | — | [simplebench](https://simple-bench.com/static/js/leaderboard-data.js) | | | ### Original source values \| Metric \| Value \| Unit \| Scope \| Direction \| \| --- \| --- \| --- \| --- \| --- \| \| `accuracy` \| 81.8 \| percent \| average_at_5 \| Higher is better \| ### Configuration Reasoning effort unknown Model configuration Muse Spark 1.3 thinkingEnabled Not reported ### Reported statistics rank 8th ### Source [Original source](https://simple-bench.com/static/js/leaderboard-data.js) Source simplebench Original model label Muse Spark 1.3 Observed 2026-10-21T16:32:13.183Z Evidence SHA-256 `b2d0285ad3e4e15750ed20d39897e7558d1c05e8962e90c861b06f93c8019dc9` Source locator `/rows/9` | | | | | | | | [Rapidata SVG generation — Overall preference](https://benchize.com/benchmarks/rapidata%3Asvg%3Aoverall.md) | 1,074.34elo | CI 1,060.62–1,088.06 | 12 / 37 | — | [rapidata · v1](https://api.rapidata.ai/benchmark/bmk_1MFkc3sXfbKCqf/standings/query) | | | ### Original source values \| Metric \| Value \| Unit \| Scope \| Direction \| \| --- \| --- \| --- \| --- \| --- \| \| `elo` \| 1074.3392659448914 \| elo \| overall \| Higher is better \| ### Configuration benchmarkId bmk_1MFkc3sXfbKCqf criterion overall participantId par_1U5GLtvnzDJIgG sourceModelVersion muse-spark-1.3 weighted false ### Reported statistics Uncertainty Confidence interval: 1,060.62–1,088.06 confidenceIntervalLowerOffset 13.723378213174556 confidenceIntervalUpperOffset 13.723378213174556 totalMatches 13717.911078329322 wins 7569.34127359332 ### Source [Original source](https://api.rapidata.ai/benchmark/bmk_1MFkc3sXfbKCqf/standings/query) Source rapidata Original model label muse-spark-1.3 Source version v1 Observed 2026-10-21T16:37:39.078Z Evidence SHA-256 `4b73ff7e4ca0ecfd64f7888c2d64f3398a058c945c4644acd54eddb330e16d66` Source locator `/items/21` | | | | | | | | [Longform Creative Writing](https://benchize.com/benchmarks/eq-bench%3Alongform-writing.md) | 82.8% | — | 6 / 93 | — | [eq bench · longform-writing](https://eqbench.com/creative_writing_longform.js) | | | ### Original source values \| Metric \| Value \| Unit \| Scope \| Direction \| \| --- \| --- \| --- \| --- \| --- \| \| `overall_score_100` \| 82.8 \| percent \| overall \| Higher is better \| \| `chapter1_avg` \| 16.94 \| rubric_score \| overall \| Higher is better \| \| `chapter2_avg` \| 16.84 \| rubric_score \| overall \| Higher is better \| \| `chapter3_avg` \| 16.73 \| rubric_score \| overall \| Higher is better \| \| `chapter4_avg` \| 16.65 \| rubric_score \| overall \| Higher is better \| \| `chapter5_avg` \| 16.68 \| rubric_score \| overall \| Higher is better \| \| `chapter6_avg` \| 16.80 \| rubric_score \| overall \| Higher is better \| \| `chapter7_avg` \| 16.83 \| rubric_score \| overall \| Higher is better \| \| `chapter8_avg` \| 17.01 \| rubric_score \| overall \| Higher is better \| \| `final_judgement_avg` \| 16.94 \| rubric_score \| overall \| Higher is better \| ### Configuration interactiveAdjustments none protocol longform-writing sourceModelVersion muse-spark-1.3 ### Source [Original source](https://eqbench.com/creative_writing_longform.js) Source eq bench Original model label muse-spark-1.3 Source version longform-writing Observed 2026-10-21T16:35:02.575Z Evidence SHA-256 `3ba283ce357ac7620e16db640a961879c30fe3ddc50a27de9a8ed4290784825c` Source locator `/leaderboardDataLongformV3/132` | | | | | | | | [FrontierSWE v2 abs](https://benchize.com/benchmarks/frontierswe%3Av2%3Aabs.md) | 25.8source score | — | 9 / 15 | — | [frontierswe](https://www.frontierswe.com/) | | | ### Original source values \| Metric \| Value \| Unit \| Scope \| Direction \| \| --- \| --- \| --- \| --- \| --- \| \| `overall` \| 25.80214823529412 \| source_score \| mean \| Higher is better \| \| `overall_best` \| 40.91821764705883 \| source_score \| best \| Higher is better \| \| `overall_worst` \| 12.589391176470588 \| source_score \| worst \| Higher is better \| \| `implementation` \| 28.78250714285714 \| source_score \| mean \| Higher is better \| \| `performance` \| 17.050273333333337 \| source_score \| mean \| Higher is better \| \| `research` \| 22.124351428571426 \| source_score \| mean \| Higher is better \| ### Configuration aggregation mean harness proximus normalization abs Reasoning effort unknown ### Source [Original source](https://www.frontierswe.com/) Source frontierswe Original model label Muse Spark 1.3 Observed 2026-10-21T16:31:27.602Z Evidence SHA-256 `818e027068cf61ff1aadd8281b6e49e9c6795221015210601b5e34d0d223e5b5` Source locator `/rows/11` | | | | | | | | [DistressBench](https://benchize.com/benchmarks/scale%3Adistressbench.md) | 84.88source score | CI 83.95–85.81 | 2 / 27 | — | [scale](https://labs.scale.com/leaderboard/distressbench) | | | ### Original source values \| Metric \| Value \| Unit \| Scope \| Direction \| \| --- \| --- \| --- \| --- \| --- \| \| `score` \| 84.88 \| source_score \| reported \| Higher is better \| ### Configuration Reasoning effort unknown Model configuration muse-spark-1.3 sourceModelVersion Not reported thinkingEnabled Not reported ### Reported statistics Uncertainty Confidence interval: 83.95–85.81 contaminationWarning Not reported rank 2 reportedConfidenceHalfWidth 0.93 ### Source [Original source](https://labs.scale.com/leaderboard/distressbench) Source scale Original model label muse-spark-1.3 Observed 2026-10-21T16:35:27.403Z Evidence SHA-256 `6ca6a76569e51fde037c8e2610bdf7bc39d99b54c69b6b4dc0dba9ec2a4e24da` Source locator `/rows/1` | | | | | | | | [PRBench Finance](https://benchize.com/benchmarks/scale%3Aprbench-finance.md) | 59.54source score | CI 57.88–61.2 | 1 / 22 | — | [scale](https://labs.scale.com/leaderboard/prbench-finance) | | | ### Original source values \| Metric \| Value \| Unit \| Scope \| Direction \| \| --- \| --- \| --- \| --- \| --- \| \| `score` \| 59.54 \| source_score \| reported \| Higher is better \| ### Configuration Reasoning effort unknown Model configuration Muse Spark 1.3 sourceModelVersion Not reported thinkingEnabled Not reported ### Reported statistics Uncertainty Confidence interval: 57.88–61.2 contaminationWarning Not reported rank 1 reportedConfidenceHalfWidth 1.66 ### Source [Original source](https://labs.scale.com/leaderboard/prbench-finance) Source scale Original model label Muse Spark 1.3 Observed 2026-10-21T16:35:34.798Z Evidence SHA-256 `948d67409f0ae9c93fd41428f634cfc93c7815a21f43690cecb9095c9d3ec8f1` Source locator `/rows/0` | | | | | | | | [Rapidata SVG generation — Preference](https://benchize.com/benchmarks/rapidata%3Asvg%3Arlb_1MFkkEMFnCNyKl.md) | 1,061.44elo | CI 1,036.94–1,085.94 | 19 / 37 | — | [rapidata · v1](https://api.rapidata.ai/benchmark/bmk_1MFkc3sXfbKCqf/standings/query?leaderboard_id%5Beq%5D=rlb_1MFkkEMFnCNyKl) | | | ### Original source values \| Metric \| Value \| Unit \| Scope \| Direction \| \| --- \| --- \| --- \| --- \| --- \| \| `elo` \| 1061.4394400231167 \| elo \| rlb_1MFkkEMFnCNyKl \| Higher is better \| ### Configuration benchmarkId bmk_1MFkc3sXfbKCqf criterion rlb_1MFkkEMFnCNyKl participantId par_1U5GLtvnzDJIgG sourceModelVersion muse-spark-1.3 weighted false ### Reported statistics Uncertainty Confidence interval: 1,036.94–1,085.94 confidenceIntervalLowerOffset 24.50240864735065 confidenceIntervalUpperOffset 24.50240864735065 totalMatches 4595 wins 2519 ### Source [Original source](https://api.rapidata.ai/benchmark/bmk_1MFkc3sXfbKCqf/standings/query?leaderboard_id%5Beq%5D=rlb_1MFkkEMFnCNyKl) Source rapidata Original model label muse-spark-1.3 Source version v1 Observed 2026-10-21T16:37:40.980Z Evidence SHA-256 `b70f07a4924c82499996aba613ca8ec2d0aee9ec9ebd404e45c8bf250206cf40` Source locator `/items/31` | | | | | | | | [Rapidata SVG generation — Coherence](https://benchize.com/benchmarks/rapidata%3Asvg%3Arlb_1MFkkBzpuU8fTG.md) | 1,066.55elo | CI 1,043.28–1,089.82 | 13 / 37 | — | [rapidata · v1](https://api.rapidata.ai/benchmark/bmk_1MFkc3sXfbKCqf/standings/query?leaderboard_id%5Beq%5D=rlb_1MFkkBzpuU8fTG) | | | ### Original source values \| Metric \| Value \| Unit \| Scope \| Direction \| \| --- \| --- \| --- \| --- \| --- \| \| `elo` \| 1066.5495096957052 \| elo \| rlb_1MFkkBzpuU8fTG \| Higher is better \| ### Configuration benchmarkId bmk_1MFkc3sXfbKCqf criterion rlb_1MFkkBzpuU8fTG participantId par_1U5GLtvnzDJIgG sourceModelVersion muse-spark-1.3 weighted false ### Reported statistics Uncertainty Confidence interval: 1,043.28–1,089.82 confidenceIntervalLowerOffset 23.271041781974418 confidenceIntervalUpperOffset 23.271041781974418 totalMatches 4595 wins 2480.5 ### Source [Original source](https://api.rapidata.ai/benchmark/bmk_1MFkc3sXfbKCqf/standings/query?leaderboard_id%5Beq%5D=rlb_1MFkkBzpuU8fTG) Source rapidata Original model label muse-spark-1.3 Source version v1 Observed 2026-10-21T16:37:39.715Z Evidence SHA-256 `aa3cb94ff16f544c58adeea35b9087d281c785058b8ce1ae0f98a7ff84920930` Source locator `/items/26` | | | | | | | --- Cite as: Muse Spark 1.3 — Benchize, https://benchize.com/models/muse-spark-1-3 (retrieved 2026-10-21)