# Muse Spark Open

> Source: Benchize (https://benchize.com) — https://benchize.com/models/muse-spark-open. When citing or reusing this content, credit "Benchize" and link to https://benchize.com/models/muse-spark-open.

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Canonical URL: https://benchize.com/models/muse-spark-open
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.

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## Benchmarks

| Benchmark | Score | ± | Rank | Source |  |
| --- | --- | --- | --- | --- | --- |
| [Rapidata SVG generation — Overall preference](https://benchize.com/benchmarks/rapidata%3Asvg%3Aoverall.md) | 1,042.3elo | CI 1,026–1,058.59 | 18 / 37 | [rapidata · v1](https://api.rapidata.ai/benchmark/bmk_1MFkc3sXfbKCqf/standings/query) |  |
| ### Original source values \| Metric \| Value \| Unit \| Scope \| Direction \| \| --- \| --- \| --- \| --- \| --- \| \| `elo` \| 1042.295914349206 \| elo \| overall \| Higher is better \| ### Configuration benchmarkId bmk_1MFkc3sXfbKCqf criterion overall participantId par_1YQHvUwA1WKcTD sourceModelVersion muse-spark-open weighted false ### Reported statistics Uncertainty Confidence interval: 1,026–1,058.59 confidenceIntervalLowerOffset 16.29530202454339 confidenceIntervalUpperOffset 16.29530202454339 totalMatches 9600.315766406316 wins 5029.219304971049 ### Source [Original source](https://api.rapidata.ai/benchmark/bmk_1MFkc3sXfbKCqf/standings/query) Source rapidata Original model label muse-spark-open Source version v1 Observed 2026-10-21T16:37:39.078Z Evidence SHA-256 `4b73ff7e4ca0ecfd64f7888c2d64f3398a058c945c4644acd54eddb330e16d66` Source locator `/items/29` |  |  |  |  |  |
| [HiL-Bench (Human-in-Loop Benchmark)](https://benchize.com/benchmarks/scale%3Ahil.md) | 59.67source score | CI 54.27–65.07 | 5 / 22 | [scale](https://labs.scale.com/leaderboard/hil) |  |
| ### Original source values \| Metric \| Value \| Unit \| Scope \| Direction \| \| --- \| --- \| --- \| --- \| --- \| \| `score` \| 59.67 \| source_score \| reported \| Higher is better \| ### Configuration Reasoning effort unknown Model configuration Muse Spark Open sourceModelVersion fireworks_ai/muse-spark-open thinkingEnabled Not reported ### Reported statistics Uncertainty Confidence interval: 54.27–65.07 contaminationWarning Not reported rank 7 reportedConfidenceHalfWidth 5.4 ### Source [Original source](https://labs.scale.com/leaderboard/hil) Source scale Original model label Muse Spark Open Observed 2026-10-21T16:35:30.082Z Evidence SHA-256 `043a333e27453edada150667c7f4439b2aab463f37928c2153c6aa79f33dd1b2` Source locator `/rows/6` |  |  |  |  |  |
| [PRBench Legal](https://benchize.com/benchmarks/scale%3Aprbench-legal.md) | 59.76source score | CI 58.88–60.64 | 2 / 26 | [scale](https://labs.scale.com/leaderboard/prbench-legal) |  |
| ### Original source values \| Metric \| Value \| Unit \| Scope \| Direction \| \| --- \| --- \| --- \| --- \| --- \| \| `score` \| 59.76 \| source_score \| reported \| Higher is better \| ### Configuration Reasoning effort unknown Model configuration Muse Spark Open sourceModelVersion fireworks_ai/muse-spark-open thinkingEnabled Not reported ### Reported statistics Uncertainty Confidence interval: 58.88–60.64 contaminationWarning Not reported rank 2 reportedConfidenceHalfWidth 0.88 ### Source [Original source](https://labs.scale.com/leaderboard/prbench-legal) Source scale Original model label Muse Spark Open Observed 2026-10-21T16:35:35.197Z Evidence SHA-256 `9e2ca4e9350870cf508bf5fff603d0b795c81f7974a0ab980312bbbfa0785067` Source locator `/rows/1` |  |  |  |  |  |
| [Rapidata SVG generation — Preference](https://benchize.com/benchmarks/rapidata%3Asvg%3Arlb_1MFkkEMFnCNyKl.md) | 1,157.07elo | CI 1,127.22–1,186.93 | 13 / 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` \| 1157.0746476882284 \| elo \| rlb_1MFkkEMFnCNyKl \| Higher is better \| ### Configuration benchmarkId bmk_1MFkc3sXfbKCqf criterion rlb_1MFkkEMFnCNyKl participantId par_1YQHvUwA1WKcTD sourceModelVersion muse-spark-open weighted false ### Reported statistics Uncertainty Confidence interval: 1,127.22–1,186.93 confidenceIntervalLowerOffset 29.858220943188144 confidenceIntervalUpperOffset 29.858220943188144 totalMatches 3200 wins 1871 ### 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-open Source version v1 Observed 2026-10-21T16:37:40.980Z Evidence SHA-256 `b70f07a4924c82499996aba613ca8ec2d0aee9ec9ebd404e45c8bf250206cf40` Source locator `/items/19` |  |  |  |  |  |
| [Rapidata SVG generation — Alignment](https://benchize.com/benchmarks/rapidata%3Asvg%3Arlb_1MFkk9yZHssERh.md) | 1,166.03elo | CI 1,136.98–1,195.07 | 11 / 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` \| 1166.0256208818328 \| elo \| rlb_1MFkk9yZHssERh \| Higher is better \| ### Configuration benchmarkId bmk_1MFkc3sXfbKCqf criterion rlb_1MFkk9yZHssERh participantId par_1YQHvUwA1WKcTD sourceModelVersion muse-spark-open weighted false ### Reported statistics Uncertainty Confidence interval: 1,136.98–1,195.07 confidenceIntervalLowerOffset 29.046339023341716 confidenceIntervalUpperOffset 29.046339023341716 totalMatches 3200 wins 1884 ### 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-open Source version v1 Observed 2026-10-21T16:37:40.342Z Evidence SHA-256 `2f5c8d08728735790b500d930d71b66f04253f1209f7c1c3da0db0846c163fcf` Source locator `/items/16` |  |  |  |  |  |
| [Humanity's Last Exam (Diamond)](https://benchize.com/benchmarks/scale%3Ahle-diamond.md) | 28source score | CI 25.14–30.86 | 10 / 12 | [scale](https://labs.scale.com/leaderboard/hle-diamond) |  |
| ### Original source values \| Metric \| Value \| Unit \| Scope \| Direction \| \| --- \| --- \| --- \| --- \| --- \| \| `score` \| 28 \| source_score \| reported \| Higher is better \| ### Configuration Reasoning effort unknown Model configuration muse-spark-open sourceModelVersion muse-spark-open thinkingEnabled Not reported ### Reported statistics Uncertainty Confidence interval: 25.14–30.86 contaminationWarning Not reported rank 11 reportedConfidenceHalfWidth 2.86 ### Source [Original source](https://labs.scale.com/leaderboard/hle-diamond) Source scale Original model label muse-spark-open Observed 2026-10-21T16:35:27.820Z Evidence SHA-256 `c60d42f5aacdf787d9ccc8b70817766d86707776a7f8b44ef0337cb9ae60bf20` Source locator `/rows/10` |  |  |  |  |  |
| [Rapidata SVG generation — Coherence](https://benchize.com/benchmarks/rapidata%3Asvg%3Arlb_1MFkkBzpuU8fTG.md) | 828.45elo | CI 800.21–856.69 | 28 / 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` \| 828.4480035091531 \| elo \| rlb_1MFkkBzpuU8fTG \| Higher is better \| ### Configuration benchmarkId bmk_1MFkc3sXfbKCqf criterion rlb_1MFkkBzpuU8fTG participantId par_1YQHvUwA1WKcTD sourceModelVersion muse-spark-open weighted false ### Reported statistics Uncertainty Confidence interval: 800.21–856.69 confidenceIntervalLowerOffset 28.241448717059598 confidenceIntervalUpperOffset 28.241448717059598 totalMatches 3200 wins 1271 ### 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-open Source version v1 Observed 2026-10-21T16:37:39.715Z Evidence SHA-256 `aa3cb94ff16f544c58adeea35b9087d281c785058b8ce1ae0f98a7ff84920930` Source locator `/items/54` |  |  |  |  |  |

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Cite as: Muse Spark Open — Benchize, https://benchize.com/models/muse-spark-open (retrieved 2026-10-21)