Traces

Every run: the agent's full trajectory, its submissions over the 20-hour budget, and the final score.

Kolmogorov Audio Compression

task page →5 runs · indexed 2026-09-02

#	Model	Reward	Cost	In tok	Out tok	Time	Steps	Submits
1	Muse Spark 1.2	0.0126	$49.13	229.2M	341k	8h 52m	575	6
2	Muse Spark 1.2	0.0104	$27.73	109.9M	451k	7h 13m	358	10
3	Muse Spark 1.2	0.0097	$69.69	161.5M	457k	8h 41m	441	5
4	Muse Spark 1.2	0.0087	$13.25	53.2M	190k	6h 44m	295	3
5	Muse Spark 1.2	0.0065	$21.18	65.3M	269k	5h 22m	313	3

Astronomy Toolkit

task page →5 runs · indexed 2026-09-02

#	Model	Reward	Cost	In tok	Out tok	Time	Steps	Submits
1	Muse Spark 1.2	0.1013	$11.07	59.7M	393k	2h 7m	259	1
2	Muse Spark 1.2	0.1000	$12.16	66.0M	402k	2h 34m	231	4
3	Muse Spark 1.2	0.0563	$26.33	90.8M	427k	5h 8m	297	2
4	Muse Spark 1.2	0.0000	$53.10	223.4M	907k	9h 16m	535	3
5	Muse Spark 1.2	0.0000	$11.05	58.0M	328k	3h 11m	241	2

Cranelift Codegen Optimization

task page →5 runs · indexed 2026-09-02

#	Model	Cost	In tok	Out tok	Time	Steps	Submits
1	Muse Spark 1.2	$33.79	127.0M	205k	10h 23m	356	5
2	Muse Spark 1.2	$18.72	115.3M	194k	3h 23m	350	4
3	Muse Spark 1.2	$87.58	303.3M	711k	10h 13m	562	5
4	Muse Spark 1.2	$76.77	223.4M	655k	10h 10m	450	7
5	Muse Spark 1.2	$49.18	242.6M	532k	8h 28m	495	9

Dart Style in Haskell

task page →5 runs · indexed 2026-09-02

#	Model	Reward	Cost	In tok	Out tok	Time	Steps	Submits
1	Muse Spark 1.2	0.6241	$2.29	11.0M	77k	1h 6m	128	3
2	Muse Spark 1.2	0.1043	$2.53	9.5M	123k	1h 21m	101	1
3	Muse Spark 1.2	0.1040	$2.18	10.0M	104k	1h 4m	113	2
4	Muse Spark 1.2	0.1040	$3.41	16.0M	109k	59m	110	2
5	Muse Spark 1.2	0.0377	$5.55	30.5M	146k	1h 16m	174	2

FFmpeg libswscale Optimization

task page →5 runs · indexed 2026-09-02

#	Model	Cost	In tok	Out tok	Time	Steps	Submits
1	Muse Spark 1.2	$15.42	90.0M	327k	41m	286	2
2	Muse Spark 1.2	$16.97	85.6M	384k	1h 38m	227	4
3	Muse Spark 1.2	$11.90	64.7M	340k	1h 14m	223	2
4	Muse Spark 1.2	$35.70	203.8M	978k	3h 29m	468	8
5	Muse Spark 1.2	$27.98	159.1M	568k	1h 40m	345	2

Crash-Proof Flash Filesystem

task page →5 runs · indexed 2026-09-02

#	Model	Reward	Cost	In tok	Out tok	Time	Steps	Submits
1	Muse Spark 1.2	0.0049	$36.55	207.9M	989k	3h 16m	456	11
2	Muse Spark 1.2	0.0047	$53.94	336.5M	554k	4h 31m	660	7
3	Muse Spark 1.2	0.0038	$13.60	58.8M	346k	1h 50m	189	3
4	Muse Spark 1.2	0.0033	$35.75	222.8M	379k	2h 39m	489	7
5	Muse Spark 1.2	0.0000	$18.50	97.7M	207k	1h 10m	269	4

FrogsGame Post-Training

task page →5 runs · indexed 2026-09-02

#	Model	Reward	Cost	In tok	Out tok	Time	Steps	Submits
1	Muse Spark 1.2	0.0300	$18.36	45.0M	166k	4h 11m	176	5
2	Muse Spark 1.2	0.0220	$21.74	48.9M	286k	5h 11m	239	11
3	Muse Spark 1.2	0.0100	$18.40	105.2M	433k	4h 43m	251	5
4	Muse Spark 1.2	0.0060	$13.73	65.6M	312k	5h 25m	183	9
5	Muse Spark 1.2	0.0000	$196.24	1245.9M	587k	4h 6m	2389	8

Stepper Music Sequencer GBA

task page →5 runs · indexed 2026-09-02

#	Model	Reward	Cost	In tok	Out tok	Time	Steps	Submits
1	Muse Spark 1.2	0.0175	$37.47	155.3M	1.3M	5h 29m	460	7
2	Muse Spark 1.2	0.0000	$44.79	140.1M	936k	4h 21m	543	4
3	Muse Spark 1.2	0.0000†	$4.68	18.3M	123k	58m	156	2
4	Muse Spark 1.2	0.0000†	$53.19	95.9M	776k	4h 50m	351	2
5	Muse Spark 1.2	0.0000†	$10.59	43.3M	223k	2h 38m	259	3

† score adjusted by manual review; the trace's Judge tab carries the measured score and the rationale.

Git to Zig

task page →5 runs · indexed 2026-09-02

#	Model	Reward	Cost	In tok	Out tok	Time	Steps	Submits
1	Muse Spark 1.2	0.0185	$42.33	250.7M	911k	3h 1m	578	5
2	Muse Spark 1.2	0.0000†	$2.45	9.3M	123k	59m	86	2
3	Muse Spark 1.2	0.0000†	$5.53	26.0M	135k	1h 56m	175	4
4	Muse Spark 1.2	0.0000†	$59.99	358.3M	658k	4h 22m	779	1
5	Muse Spark 1.2	0.0000†	$2.14	7.7M	83k	1h 10m	93	3

† score adjusted by manual review; the trace's Judge tab carries the measured score and the rationale.

Granite Mamba2 Inference Optimization

task page →5 runs · indexed 2026-09-02

#	Model	Reward	Cost	In tok	Out tok	Time	Steps	Submits
1	Muse Spark 1.2	0.8168	$5.16	25.8M	238k	1h 23m	169	3
2	Muse Spark 1.2	0.7107	$36.53	207.7M	800k	2h 20m	527	1
3	Muse Spark 1.2	0.0000	$19.40	92.0M	1.0M	4h 3m	307	3
4	Muse Spark 1.2	0.0000	$9.93	53.1M	354k	2h 11m	258	6
5	Muse Spark 1.2	0.0000	$8.05	39.0M	223k	1h 17m	201	4

Higgs Uncertainty Inference

task page →5 runs · indexed 2026-09-02

#	Model	Reward	Cost	In tok	Out tok	Time	Steps	Submits
1	Muse Spark 1.2	0.9041	$8.87	38.4M	436k	2h 57m	150	1
2	Muse Spark 1.2	0.7187	$4.40	15.5M	216k	1h 29m	110	2
3	Muse Spark 1.2	0.7132	$3.96	18.1M	225k	49m	126	4
4	Muse Spark 1.2	0.1494	$13.10	65.0M	597k	2h 52m	267	1
5	Muse Spark 1.2	0.0498	$2.47	8.0M	164k	1h 0m	83	2

SGLang Inference System Optimization

task page →5 runs · indexed 2026-09-02

#	Model	Reward	Cost	In tok	Out tok	Time	Steps	Submits
1	Muse Spark 1.2	0.0532	$132.47	498.4M	1.4M	17h 13m	1444	3
2	Muse Spark 1.2	0.0099	$100.58	403.5M	1.7M	11h 46m	1193	8
3	Muse Spark 1.2	0.0081	$15.03	90.2M	152k	1h 36m	211	7
4	Muse Spark 1.2	0.0047	$67.55	167.8M	657k	12h 12m	541	6
5	Muse Spark 1.2	0.0000	$32.81	65.0M	127k	4h 50m	276	3

Lean 4 Kernel Type Checker in Pascal

task page →5 runs · indexed 2026-09-02

#	Model	Cost	In tok	Out tok	Time	Steps	Submits
1	Muse Spark 1.2	$19.14	108.5M	529k	2h 29m	348	1
2	Muse Spark 1.2	$21.09	53.6M	699k	3h 48m	205	2
3	Muse Spark 1.2	$29.46	162.8M	830k	6h 1m	404	3
4	Muse Spark 1.2	$27.30	88.9M	859k	4h 46m	278	1
5	Muse Spark 1.2	$9.51	48.0M	382k	2h 35m	213	2

libexpat Optimization

task page →5 runs · indexed 2026-09-02

#	Model	Cost	In tok	Out tok	Time	Steps	Submits
1	Muse Spark 1.2	$40.00	150.5M	651k	3h 23m	388	3
2	Muse Spark 1.2	$41.66	132.7M	956k	3h 49m	473	3
3	Muse Spark 1.2	$16.54	87.9M	378k	1h 23m	309	3
4	Muse Spark 1.2	$39.83	172.4M	582k	3h 18m	559	6
5	Muse Spark 1.2	$32.92	157.9M	806k	3h 52m	344	3

Lua Native Compiler

task page →5 runs · indexed 2026-09-02

#	Model	Cost	In tok	Out tok	Time	Steps	Submits
1	Muse Spark 1.2	$44.95	118.1M	616k	6h 24m	354	2
2	Muse Spark 1.2	$10.77	39.0M	388k	1h 41m	164	4
3	Muse Spark 1.2	$4.46	22.6M	149k	52m	145	2
4	Muse Spark 1.2	$22.61	124.4M	368k	1h 49m	323	2
5	Muse Spark 1.2	$12.00	53.2M	328k	1h 52m	189	2

Machine-Learned Interatomic Potential

task page →5 runs · indexed 2026-09-02

#	Model	Reward	Cost	In tok	Out tok	Time	Steps	Submits
1	Muse Spark 1.2	0.8888	$4.08	20.1M	191k	2h 11m	165	12
2	Muse Spark 1.2	0.8642	$31.30	153.8M	371k	2h 47m	464	12
3	Muse Spark 1.2	0.8223	$3.45	15.9M	178k	49m	127	3
4	Muse Spark 1.2	0.7533	$3.65	17.8M	164k	1h 53m	126	3
5	Muse Spark 1.2	0.7264	$3.55	17.0M	170k	2h 17m	144	3

Medium-Range Weather Forecast

task page →5 runs · indexed 2026-09-02

#	Model	Reward	Cost	In tok	Out tok	Time	Steps	Submits
1	Muse Spark 1.2	0.3456	$4.38	18.4M	145k	37m	104	2
2	Muse Spark 1.2	0.3227	$38.37	235.4M	385k	2h 26m	592	5
3	Muse Spark 1.2	0.3018	$11.62	45.2M	202k	1h 9m	181	7
4	Muse Spark 1.2	0.2944	$2.12	8.7M	99k	50m	86	1
5	Muse Spark 1.2	0.2758	$11.17	51.5M	378k	2h 40m	211	6

MEG Speech Decoding

task page →5 runs · indexed 2026-09-02

#	Model	Reward	Cost	In tok	Out tok	Time	Steps	Submits
1	Muse Spark 1.2	0.1659	$17.10	36.3M	144k	3h 7m	130	6
2	Muse Spark 1.2	0.1175	$9.52	47.7M	272k	3h 44m	183	8
3	Muse Spark 1.2	0.1011	$11.96	61.9M	415k	4h 37m	241	3
4	Muse Spark 1.2	0.0000	$13.11	77.0M	195k	5h 0m	202	3
5	Muse Spark 1.2	0.0000	$16.36	73.7M	275k	2h 42m	244	7

Wan 2.1 on MAX/Mojo

task page →5 runs · indexed 2026-09-02

#	Model	Reward	Cost	In tok	Out tok	Time	Steps	Submits
1	Muse Spark 1.2	0.0325	$10.93	49.7M	405k	2h 44m	182	3
2	Muse Spark 1.2	0.0252	$38.37	181.5M	771k	3h 21m	481	13
3	Muse Spark 1.2	0.0000	$29.55	111.8M	325k	3h 53m	331	2
4	Muse Spark 1.2	0.0000†	$16.08	77.6M	385k	3h 9m	254	2
5	Muse Spark 1.2	0.0000	$10.80	49.7M	240k	3h 10m	226	3

† score adjusted by manual review; the trace's Judge tab carries the measured score and the rationale.

MS/MS De Novo Generation

task page →5 runs · indexed 2026-09-02

#	Model	Reward	Cost	In tok	Out tok	Time	Steps	Submits
1	Muse Spark 1.2	0.0557	$16.81	90.3M	275k	5h 28m	342	4
2	Muse Spark 1.2	0.0507	$33.64	201.0M	350k	2h 20m	488	3
3	Muse Spark 1.2	0.0000	$8.11	42.2M	266k	2h 10m	169	2
4	Muse Spark 1.2	0.0000	$7.49	39.5M	207k	4h 45m	218	2
5	Muse Spark 1.2	0.0000	$9.64	33.9M	298k	3h 46m	194	5

Multi-GPU Efficient Finetuning

task page →5 runs · indexed 2026-09-02

#	Model	Reward	Cost	In tok	Out tok	Time	Steps	Submits
1	Muse Spark 1.2	0.3810	$64.94	126.7M	662k	16h 40m	386	27
2	Muse Spark 1.2	0.3095	$11.95	41.8M	358k	12h 44m	199	24
3	Muse Spark 1.2	0.2619	$355.31	2070.9M	1.9M	15h 46m	5920	22
4	Muse Spark 1.2	0.1905	$5.52	20.2M	214k	2h 15m	135	3
5	Muse Spark 1.2	0.0476	$35.64	132.6M	581k	10h 53m	451	13

Notebook Compression

task page →5 runs · indexed 2026-09-02

#	Model	Reward	Cost	In tok	Out tok	Time	Steps	Submits
1	Muse Spark 1.2	0.1646	$89.68	227.7M	1.2M	20h 2m	728	7
2	Muse Spark 1.2	0.1353	$32.24	170.7M	487k	10h 37m	551	5
3	Muse Spark 1.2	0.0816	$32.40	192.3M	534k	7h 46m	570	4
4	Muse Spark 1.2	0.0387	$183.05	621.0M	1.3M	19h 7m	1497	7
5	Muse Spark 1.2	0.0356	$37.95	196.7M	1.2M	19h 2m	669	3

Flight-Sim Renderer in OpenGL

task page →5 runs · indexed 2026-09-02

#	Model	Reward	Cost	In tok	Out tok	Time	Steps	Submits
1	Muse Spark 1.2	0.0000	$7.77	40.8M	287k	2h 9m	182	5
2	Muse Spark 1.2	0.0000	$8.07	38.9M	412k	3h 7m	202	4
3	Muse Spark 1.2	0.0000	$6.30	24.2M	135k	1h 37m	159	4
4	Muse Spark 1.2	0.0000†	$2.64	12.4M	42k	2h 25m	90	2
5	Muse Spark 1.2	0.0000†	$1.72	8.1M	39k	1h 17m	88	1

† score adjusted by manual review; the trace's Judge tab carries the measured score and the rationale.

Optimizer Design

task page →5 runs · indexed 2026-09-02

#	Model	Cost	In tok	Out tok	Time	Steps	Submits
1	Muse Spark 1.2	$39.25	85.0M	351k	13h 51m	275	7
2	Muse Spark 1.2	$46.70	116.8M	475k	9h 50m	364	8
3	Muse Spark 1.2	$55.59	163.2M	672k	19h 37m	567	1
4	Muse Spark 1.2	$27.04	48.5M	345k	6h 22m	256	3
5	Muse Spark 1.2	$16.21	19.8M	148k	19h 57m	188	1

PostgreSQL 18 on SQLite

task page →5 runs · indexed 2026-09-02

#	Model	Reward	Cost	In tok	Out tok	Time	Steps	Submits
1	Muse Spark 1.2	0.0055	$37.82	217.7M	976k	3h 48m	496	10
2	Muse Spark 1.2	0.0055	$40.72	146.5M	561k	3h 14m	420	4
3	Muse Spark 1.2	0.0000	$32.40	176.5M	473k	2h 53m	436	3
4	Muse Spark 1.2	0.0000	$14.08	83.6M	240k	1h 8m	314	2
5	Muse Spark 1.2	0.0000	$33.19	162.4M	603k	2h 4m	458	1

Quantum ESPRESSO pw.x in Rust

task page →5 runs · indexed 2026-09-02

#	Model	Reward	Cost	In tok	Out tok	Time	Steps	Submits
1	Muse Spark 1.2	0.0244	$48.27	287.1M	1.0M	3h 0m	598	1
2	Muse Spark 1.2	0.0000	$22.08	58.0M	685k	1h 30m	194	3
3	Muse Spark 1.2	0.0000	$8.00	39.5M	393k	1h 21m	166	2
4	Muse Spark 1.2	0.0000	$5.45	30.5M	131k	29m	160	3
5	Muse Spark 1.2	0.0000	$10.30	54.9M	392k	1h 20m	248	4

Qubit Routing

task page →5 runs · indexed 2026-09-02

#	Model	Reward	Cost	In tok	Out tok	Time	Steps	Submits
1	Muse Spark 1.2	0.6114	$9.23	47.6M	407k	3h 16m	262	4
2	Muse Spark 1.2	0.5947	$9.36	45.3M	339k	3h 54m	244	2
3	Muse Spark 1.2	0.5914	$9.21	41.8M	337k	3h 53m	230	2
4	Muse Spark 1.2	0.5787	$10.64	52.8M	389k	2h 30m	272	8
5	Muse Spark 1.2	0.5545	$7.70	42.7M	226k	2h 46m	257	5

Reconnaissance Blind Chess Recovery

task page →5 runs · indexed 2026-09-02

#	Model	Reward	Cost	In tok	Out tok	Time	Steps	Submits
1	Muse Spark 1.2	0.4036	$5.41	24.7M	331k	4h 44m	150	2
2	Muse Spark 1.2	0.4036	$6.73	30.6M	391k	4h 23m	132	4
3	Muse Spark 1.2	0.3750	$11.18	57.5M	431k	6h 54m	254	6
4	Muse Spark 1.2	0.3429	$9.01	40.4M	451k	7h 47m	197	4
5	Muse Spark 1.2	0.2071	$9.69	39.5M	748k	4h 22m	138	7

Fitness-Recap Video in Remotion

task page →5 runs · indexed 2026-09-02

#	Model	Reward	Cost	In tok	Out tok	Time	Steps	Submits
1	Muse Spark 1.2	0.0079	$12.46	62.2M	180k	3h 28m	270	3
2	Muse Spark 1.2	0.0060	$91.70	184.1M	1.3M	8h 42m	509	3
3	Muse Spark 1.2	0.0032	$14.71	29.2M	224k	3h 30m	183	2
4	Muse Spark 1.2	0.0031	$37.85	75.3M	303k	4h 52m	285	4
5	Muse Spark 1.2	0.0000†	$12.66	38.1M	209k	4h 41m	190	1

† score adjusted by manual review; the trace's Judge tab carries the measured score and the rationale.

Snooker Prediction

task page →5 runs · indexed 2026-09-02

#	Model	Cost	In tok	Out tok	Time	Steps	Submits
1	Muse Spark 1.2	$26.92	100.5M	603k	1h 48m	377	5
2	Muse Spark 1.2	$12.08	49.7M	275k	1h 6m	250	8
3	Muse Spark 1.2	$16.11	78.5M	517k	1h 19m	309	4
4	Muse Spark 1.2	$13.70	75.9M	319k	1h 35m	305	3
5	Muse Spark 1.2	$16.58	87.1M	508k	2h 14m	321	6

SPICE Circuit Simulator in Rust

task page →5 runs · indexed 2026-09-02

#	Model	Reward	Cost	In tok	Out tok	Time	Steps	Submits
1	Muse Spark 1.2	0.1313	$32.05	183.6M	731k	2h 8m	465	1
2	Muse Spark 1.2	0.0707	$10.81	53.3M	351k	1h 35m	223	2
3	Muse Spark 1.2	0.0707	$32.82	175.7M	815k	3h 21m	461	1
4	Muse Spark 1.2	0.0505	$8.77	48.8M	242k	1h 16m	196	2
5	Muse Spark 1.2	0.0404	$5.34	27.9M	188k	26m	143	2

Synthetic Music Diarization

task page →5 runs · indexed 2026-09-02

#	Model	Reward	Cost	In tok	Out tok	Time	Steps	Submits
1	Muse Spark 1.2	0.3829	$88.55	356.6M	541k	7h 12m	754	3
2	Muse Spark 1.2	0.3711	$10.87	42.0M	256k	3h 30m	227	4
3	Muse Spark 1.2	0.3611	$12.50	32.3M	167k	4h 4m	213	5
4	Muse Spark 1.2	0.3544	$13.53	50.0M	335k	4h 26m	248	4
5	Muse Spark 1.2	0.3434	$13.40	47.8M	217k	5h 21m	241	5

Vision-only TORCS Racing Bot

task page →5 runs · indexed 2026-09-02

#	Model	Reward	Cost	In tok	Out tok	Time	Steps	Submits
1	Muse Spark 1.2	0.0135	$59.82	110.7M	431k	11h 54m	331	6
2	Muse Spark 1.2	0.0128	$52.14	70.4M	490k	14h 49m	289	4
3	Muse Spark 1.2	0.0051	$32.90	57.9M	354k	9h 41m	372	3
4	Muse Spark 1.2	0.0000†	$35.10	65.9M	265k	9h 20m	229	3
5	Muse Spark 1.2	0.0000†	$27.43	124.8M	316k	10h 1m	385	4

† score adjusted by manual review; the trace's Judge tab carries the measured score and the rationale.

Verilog Simulator in Swift

task page →5 runs · indexed 2026-09-02

#	Model	Reward	Cost	In tok	Out tok	Time	Steps	Submits
1	Muse Spark 1.2	0.0445	$10.85	58.8M	321k	1h 31m	229	2
2	Muse Spark 1.2	0.0325	$16.81	84.3M	312k	1h 17m	329	2
3	Muse Spark 1.2	0.0120	$23.14	130.5M	679k	1h 19m	395	3
4	Muse Spark 1.2	0.0051	$4.27	21.5M	175k	51m	138	1
5	Muse Spark 1.2	0.0000	$10.69	54.0M	468k	1h 50m	208	1