RankingEffort benchmarks

Muse Spark 1.2 effort benchmarks

Compare measured Low, Medium, High and other settings. Every number keeps its source.

Model

Muse Spark 1.2

52 measured results · 3 reported effort labels · 50 benchmark/harness combinations. Model evidence and sources →

Capability score evidence

Muse Spark 1.2 · XHigh: 45.6 overall comparison score. Meets the overall evidence requirements.

Which sources carry the weight?

Meta · 21.5% direct comparison weight · provider report
Artificial Analysis · 19.2% direct comparison weight · independent
Datacurve · 18.8% direct comparison weight · independent
Vals AI · 17.1% direct comparison weight · independent
LiveBench · 16.3% direct comparison weight · independent
Epoch AI · 7.0% direct comparison weight · independent

These shares describe the comparisons entering the fit, not fractions of the final score.

How sensitive is this score?

Remove one evaluator or family and refit the graph against the same overall panel. Values use the matching dataset audited 2026-09-12. These are sensitivity checks, not confidence intervals; ranking eligibility may also change.

Removed evidence	Recomputed score	Change
Artificial Analysis	47.6	+2.0
ARC Prize	47.7	+2.1
Datacurve	42.2	-3.4
LiveCodeBench	45.6	-0.0
Scale	46.8	+1.2
Terminal-Bench	45.8	+0.2
Cognition	46.9	+1.2
LiveBench	47.2	+1.5
SWE-rebench	45.2	-0.4
Epoch AI	45.3	-0.3
Vals AI	43.2	-2.4
Provider reports · Anthropic	45.6	-0.0
Provider reports · Moonshot AI	45.5	-0.1
Provider reports · Meta	50.4	+4.8
Provider reports · Mistral	45.6	+0.0
All provider reports	50.3	+4.7

Every benchmark family

Removed evidence	Recomputed score	Change
deepswe	42.2	-3.4
arc-agi	47.5	+1.9
harvey	44.3	-1.3
terminal-bench	46.9	+1.3
frontiercode	46.9	+1.2
vals-finance-agent	44.6	-1.0
mmmu-pro	46.6	+1.0
simpleqa	44.8	-0.8
vals-excel-modeling	46.4	+0.8
multi-swe-bench	44.8	-0.8
vals-code-migration	46.4	+0.8
livebench-language	46.2	+0.6
mmlu-pro	46.2	+0.6
hle	46.1	+0.5
swe-rebench	45.2	-0.4
vibe-code	45.2	-0.4
omniscience	46.0	+0.4
livebench-instructions	45.3	-0.3
frontiermath	45.9	+0.3
livebench-math	45.9	+0.3
ifbench	45.4	-0.2
vals-legal-research	45.4	-0.2
enterprise-ops	45.4	-0.2
swe-atlas-qna	45.4	-0.2
tau-bench	45.4	-0.2
epoch-game-puzzles	45.4	-0.2
livebench-coding	45.8	+0.2
swe-atlas-test-writing	45.4	-0.2
scicode	45.5	-0.1
arc-agi-3	45.5	-0.1
critpt	45.7	+0.1
aime	45.7	+0.1
livebench-data	45.7	+0.1
gdp-pdf	45.7	+0.1
enigma-eval	45.7	+0.1
briefcase	45.5	-0.1
gdpval	45.5	-0.1
automationbench	45.7	+0.1
gpqa	45.7	+0.1
livebench-reasoning	45.5	-0.1
apex-agents	45.6	+0.0
itbench	45.6	-0.0
aa-lcr	45.6	-0.0
swe-atlas-refactoring	45.6	-0.0
swe-bench-pro	45.6	+0.0
gmmlu	45.6	+0.0
livecodebench	45.6	-0.0
analyst-agent	45.6	+0.0
math500	45.6	+0.0

What evidence is missing from the fit?

Across all collected settings for this model: 68 observations, 52 contributing, 0 matched without graph weight and 16 excluded. Counts do not establish rank eligibility.

1 · Benchmark family or source protocol has not been reviewed
3 · Evaluator has not been reviewed for independent admission
1 · Secondary GDPval-AA v2 leaderboard report; the original evaluator already supplies this exact configuration. Reprinted or rerated board snapshots are not additional evaluation evidence.
6 · Supporting evidence outside the reviewed capability core
3 · No matched opponent in this evaluation unit
1 · Different native coding harnesses are mixed; exact shared agent configuration is not established.
1 · No reviewed effort for this catalog observation; any separately collected effort measurement is counted separately

Inspect every observation and exclusion →

Capability profile

One configuration, seven capabilities

Comparison score · 0–100

AMuse Spark 1.2 · XHigh5 of 7 capabilities supported

Gaps are unknown, not zero. Hollow points are preliminary.

Agentic
A55.8Supported
Hard reasoning
A47.0Supported
Coding
A51.1Supported
Human pref
Unknown
Knowledge
A47.9Supported
Multimodal
Unknown
Long context
A56.3Supported

Each profile belongs to the named configuration. Capability scores use a shared panel for all axes, distinct from the overall ranking panel; they are not accuracy percentages or direct head-to-head wins.

Compare this configuration →Explore the model evidence profile →

These are published benchmark scores. Supported effort estimates also appear on the Capability leaderboard. Results from different harnesses occupy different rows. Missing cells stay unknown; no scores are copied between effort levels.

Benchmark / source	Low	High	XHigh
AA-Briefcase EloArtificial Analysis · Artificial Analysis published evaluation; see source for benchmark-specific settings Benchmark details AA-Briefcase is an agentic knowledge work benchmark developed by Artificial Analysis. AA-Briefcase Elo is a combined metric that aggregates rubric pass rate, analytical quality Elo and presentation Elo · Higher is better · Evaluation results measured independently by Artificial Analysis Unit: elo. Source collected 2026-09-12.	Not reported	Not reported	1,343.5 Elo Reported settings Muse Spark 1.2 (xhigh); Model source: https://artificialanalysis.ai/models/muse-spark-1-2
AA-LCR v1.1Artificial Analysis · Artificial Analysis published evaluation; see source for benchmark-specific settings Benchmark details Independently benchmarked by Artificial Analysis · Evaluation results measured independently by Artificial Analysis Unit: percent. Source collected 2026-09-12.	Not reported	Not reported	79% Reported settings Muse Spark 1.2 (xhigh); Model source: https://artificialanalysis.ai/models/muse-spark-1-2
AutomationBench-AAArtificial Analysis · Artificial Analysis published evaluation; see source for benchmark-specific settings Benchmark details Share of task objectives completed with no guardrail violations · Higher is better · Benchmark developed by Zapier · Independently benchmarked by Artificial Analysis · Evaluation results measured independently by Artificial Analysis Unit: percent. Source collected 2026-09-12.	Not reported	Not reported	40.61% Reported settings Muse Spark 1.2 (xhigh); Model source: https://artificialanalysis.ai/models/muse-spark-1-2
CritPtArtificial Analysis · Artificial Analysis published evaluation; see source for benchmark-specific settings Benchmark details Benchmark developed by Argonne and UIUC, with contributions from 60+ researchers globally · Independently benchmarked by Artificial Analysis · Evaluation results measured independently by Artificial Analysis Unit: percent. Source collected 2026-09-12.	Not reported	Not reported	17.71% Reported settings Muse Spark 1.2 (xhigh); Model source: https://artificialanalysis.ai/models/muse-spark-1-2
EnterpriseOps-Gym-AAArtificial Analysis · Artificial Analysis published evaluation; see source for benchmark-specific settings Benchmark details Overall task success rate across all eight enterprise domains (oracle tool mode) · Benchmark developed by ServiceNow Research · Independently benchmarked by Artificial Analysis · Evaluation results measured independently by Artificial Analysis Unit: percent. Source collected 2026-09-12.	Not reported	Not reported	47.27% Reported settings Muse Spark 1.2 (xhigh); Model source: https://artificialanalysis.ai/models/muse-spark-1-2
GDP.pdf: All-passArtificial Analysis · Artificial Analysis published evaluation; see source for benchmark-specific settings Benchmark details Share of attempts where every atomic criterion passed · Independently benchmarked by Artificial Analysis · Evaluation results measured independently by Artificial Analysis Unit: percent. Source collected 2026-09-12.	Not reported	Not reported	17.4% Reported settings Muse Spark 1.2 (xhigh); Model source: https://artificialanalysis.ai/models/muse-spark-1-2
GDPval-AA v2 LeaderboardArtificial Analysis · Artificial Analysis published evaluation; see source for benchmark-specific settings Benchmark details Elo rating for performance on real-world work tasks · Anchored to a human baseline of 1,000 · Higher is better · Evaluation results measured independently by Artificial Analysis Unit: elo. Source collected 2026-09-12.	Not reported	Not reported	1,523.32 Elo Reported settings Muse Spark 1.2 (xhigh); Model source: https://artificialanalysis.ai/models/muse-spark-1-2
GPQA DiamondArtificial Analysis · Artificial Analysis published evaluation; see source for benchmark-specific settings Benchmark details Independently benchmarked by Artificial Analysis · Evaluation results measured independently by Artificial Analysis Unit: percent. Source collected 2026-09-12.	Not reported	Not reported	90.4% Reported settings Muse Spark 1.2 (xhigh); Model source: https://artificialanalysis.ai/models/muse-spark-1-2
Humanity's Last ExamArtificial Analysis · Artificial Analysis published evaluation; see source for benchmark-specific settings Benchmark details Independently benchmarked by Artificial Analysis · Evaluation results measured independently by Artificial Analysis Unit: percent. Source collected 2026-09-12.	Not reported	Not reported	45.46% Reported settings Muse Spark 1.2 (xhigh); Model source: https://artificialanalysis.ai/models/muse-spark-1-2
MLCR-AAArtificial Analysis · Artificial Analysis published evaluation; see source for benchmark-specific settings Benchmark details Share of tasks judged accurate, complete, and concise · Expert + compound (hard) sets · Benchmark developed by Wisedocs · Independently benchmarked by Artificial Analysis · Evaluation results measured independently by Artificial Analysis Unit: percent. Source collected 2026-09-12.	Not reported	Not reported	31.11% Reported settings Muse Spark 1.2 (xhigh); Model source: https://artificialanalysis.ai/models/muse-spark-1-2
AA-Omniscience IndexArtificial Analysis · Artificial Analysis published evaluation; see source for benchmark-specific settings Benchmark details AA-Omniscience Index (higher is better) measures knowledge reliability and hallucination. It rewards correct answers, penalizes hallucinations, and has no penalty for refusing to answer. Scores range from -100 to 100, where 0 means as many correct as incorrect answers, and negative scores mean more incorrect than correct. · Evaluation results measured independently by Artificial Analysis Unit: index. Source collected 2026-09-12.	Not reported	Not reported	27.2 Reported settings Muse Spark 1.2 (xhigh); Model source: https://artificialanalysis.ai/models/muse-spark-1-2
AA-Omniscience AccuracyArtificial Analysis · 6000 questions; 1 attempt; correct-answer share; GPT-5.6 Luna medium grader Benchmark details AA-Omniscience Accuracy (higher is better) measures the proportion of correctly answered questions out of all questions, regardless of whether the model chooses to answer · Evaluation results measured independently by Artificial Analysis Unit: percent. Source collected 2026-09-12.	Not reported	Not reported	45.38% Reported settings Muse Spark 1.2 (xhigh); Model source: https://artificialanalysis.ai/models/muse-spark-1-2
SciCodeArtificial Analysis · Artificial Analysis published evaluation; see source for benchmark-specific settings Benchmark details Independently benchmarked by Artificial Analysis · Evaluation results measured independently by Artificial Analysis Unit: percent. Source collected 2026-09-12.	Not reported	Not reported	57.41% Reported settings Muse Spark 1.2 (xhigh); Model source: https://artificialanalysis.ai/models/muse-spark-1-2
𝜏³-BankingArtificial Analysis · Artificial Analysis published evaluation; see source for benchmark-specific settings Benchmark details Benchmark developed by Sierra Research · Independently benchmarked by Artificial Analysis · Evaluation results measured independently by Artificial Analysis Unit: percent. Source collected 2026-09-12.	Not reported	Not reported	34.85% Reported settings Muse Spark 1.2 (xhigh); Model source: https://artificialanalysis.ai/models/muse-spark-1-2
Terminal-Bench v2.1Artificial Analysis · Artificial Analysis published evaluation; see source for benchmark-specific settings Benchmark details Benchmark developed by the Laude Institute and open-source contributors · Independently benchmarked by Artificial Analysis · Evaluation results measured independently by Artificial Analysis Unit: percent. Source collected 2026-09-12.	Not reported	Not reported	80.15% Reported settings Muse Spark 1.2 (xhigh); Model source: https://artificialanalysis.ai/models/muse-spark-1-2
Terminal-Bench v4.0Artificial Analysis · mini-SWE-agent v2.4.6; 66 tasks; pass@1 averaged over 3 repeats; 500 steps; task timeout up to 8 hours Benchmark details Benchmark developed by the Laude Institute, Stanford, and open-source contributors · Independently benchmarked by Artificial Analysis · Evaluation results measured independently by Artificial Analysis Unit: percent. Source collected 2026-09-12.	Not reported	Not reported	7.07% Reported settings Muse Spark 1.2 (xhigh); Model source: https://artificialanalysis.ai/models/muse-spark-1-2
DeepSWE v1.1Datacurve · mini-swe-agent Benchmark details Original public board. Configuration and task coverage may differ; inspect source. Unit: percent. Source collected 2026-09-12.	Not reported	Not reported	54.9% Reported settings muse-spark-1-2; Reported effort: xhigh; 113 unique tasks; 452 attempts; 4 runs
VulcanBench v3 · Report 19VulcanBench · VulcanBench bare-bones API loop, deterministic hidden tests in Docker Benchmark details Frozen v3, 23 post-cutoff repository tasks. Published pass@1; repeat counts and time budgets vary by report. Display only pending comparability review. Unit: percent. Source collected 2026-09-12.	87% Reported settings Muse Spark 1.2; source label: low; low effort; 23 tasks; evaluation 2026-08-25. See source for repeat counts and wall-clock budget.	73.9% Reported settings Muse Spark 1.2; source label: high; high effort; 23 tasks; evaluation 2026-08-25. See source for repeat counts and wall-clock budget.	52.2% Reported settings Muse Spark 1.2; source label: xhigh; xhigh effort; 23 tasks; evaluation 2026-08-25. See source for repeat counts and wall-clock budget.
LiveBench · AMPS Hard · 2026-06-25LiveBench · LiveBench official task evaluation Benchmark details LiveBench 2026-06-25 task snapshot. Task scores stay separate and related tasks share their reviewed family budget. Explicit checkpoint and effort labels only. Unit: percent. Source collected 2026-09-12.	Not reported	Not reported	89% Reported settings LiveBench official task evaluation; livebench-2026-06-25-AMPS_Hard; muse-spark-1.2-xhigh; checkpoint=muse-spark-1.2
LiveBench · code completion · 2026-06-25LiveBench · LiveBench official task evaluation Benchmark details LiveBench 2026-06-25 task snapshot. Task scores stay separate and related tasks share their reviewed family budget. Explicit checkpoint and effort labels only. Unit: percent. Source collected 2026-09-12.	Not reported	Not reported	80.44% Reported settings LiveBench official task evaluation; livebench-2026-06-25-code_completion; muse-spark-1.2-xhigh; checkpoint=muse-spark-1.2
LiveBench · code generation · 2026-06-25LiveBench · LiveBench official task evaluation Benchmark details LiveBench 2026-06-25 task snapshot. Task scores stay separate and related tasks share their reviewed family budget. Explicit checkpoint and effort labels only. Unit: percent. Source collected 2026-09-12.	Not reported	Not reported	74.65% Reported settings LiveBench official task evaluation; livebench-2026-06-25-code_generation; muse-spark-1.2-xhigh; checkpoint=muse-spark-1.2
LiveBench · connections · 2026-06-25LiveBench · LiveBench official task evaluation Benchmark details LiveBench 2026-06-25 task snapshot. Task scores stay separate and related tasks share their reviewed family budget. Explicit checkpoint and effort labels only. Unit: percent. Source collected 2026-09-12.	Not reported	Not reported	100% Reported settings LiveBench official task evaluation; livebench-2026-06-25-connections; muse-spark-1.2-xhigh; checkpoint=muse-spark-1.2
LiveBench · consecutive events · 2026-06-25LiveBench · LiveBench official task evaluation Benchmark details LiveBench 2026-06-25 task snapshot. Task scores stay separate and related tasks share their reviewed family budget. Explicit checkpoint and effort labels only. Unit: percent. Source collected 2026-09-12.	Not reported	Not reported	82.55% Reported settings LiveBench official task evaluation; livebench-2026-06-25-consecutive_events; muse-spark-1.2-xhigh; checkpoint=muse-spark-1.2
LiveBench · integrals with game · 2026-06-25LiveBench · LiveBench official task evaluation Benchmark details LiveBench 2026-06-25 task snapshot. Task scores stay separate and related tasks share their reviewed family budget. Explicit checkpoint and effort labels only. Unit: percent. Source collected 2026-09-12.	Not reported	Not reported	91% Reported settings LiveBench official task evaluation; livebench-2026-06-25-integrals_with_game; muse-spark-1.2-xhigh; checkpoint=muse-spark-1.2
LiveBench · javascript · 2026-06-25LiveBench · LiveBench Mini-SWE-Agent, 250-step limit Benchmark details LiveBench 2026-06-25 task snapshot. Task scores stay separate and related tasks share their reviewed family budget. Explicit checkpoint and effort labels only. Unit: percent. Source collected 2026-09-12.	Not reported	Not reported	72.73% Reported settings LiveBench Mini-SWE-Agent, 250-step limit; livebench-2026-06-25-javascript; muse-spark-1.2-xhigh; checkpoint=muse-spark-1.2
LiveBench · logic with navigation · 2026-06-25LiveBench · LiveBench official task evaluation Benchmark details LiveBench 2026-06-25 task snapshot. Task scores stay separate and related tasks share their reviewed family budget. Explicit checkpoint and effort labels only. Unit: percent. Source collected 2026-09-12.	Not reported	Not reported	88% Reported settings LiveBench official task evaluation; livebench-2026-06-25-logic_with_navigation; muse-spark-1.2-xhigh; checkpoint=muse-spark-1.2
LiveBench · math comp · 2026-06-25LiveBench · LiveBench official task evaluation Benchmark details LiveBench 2026-06-25 task snapshot. Task scores stay separate and related tasks share their reviewed family budget. Explicit checkpoint and effort labels only. Unit: percent. Source collected 2026-09-12.	Not reported	Not reported	97.06% Reported settings LiveBench official task evaluation; livebench-2026-06-25-math_comp; muse-spark-1.2-xhigh; checkpoint=muse-spark-1.2
LiveBench · olympiad · 2026-06-25LiveBench · LiveBench official task evaluation Benchmark details LiveBench 2026-06-25 task snapshot. Task scores stay separate and related tasks share their reviewed family budget. Explicit checkpoint and effort labels only. Unit: percent. Source collected 2026-09-12.	Not reported	Not reported	87.76% Reported settings LiveBench official task evaluation; livebench-2026-06-25-olympiad; muse-spark-1.2-xhigh; checkpoint=muse-spark-1.2
LiveBench · paraphrase · 2026-06-25LiveBench · LiveBench official task evaluation Benchmark details LiveBench 2026-06-25 task snapshot. Task scores stay separate and related tasks share their reviewed family budget. Explicit checkpoint and effort labels only. Unit: percent. Source collected 2026-09-12.	Not reported	Not reported	74.3% Reported settings LiveBench official task evaluation; livebench-2026-06-25-paraphrase; muse-spark-1.2-xhigh; checkpoint=muse-spark-1.2
LiveBench · plot unscrambling · 2026-06-25LiveBench · LiveBench official task evaluation Benchmark details LiveBench 2026-06-25 task snapshot. Task scores stay separate and related tasks share their reviewed family budget. Explicit checkpoint and effort labels only. Unit: percent. Source collected 2026-09-12.	Not reported	Not reported	61.72% Reported settings LiveBench official task evaluation; livebench-2026-06-25-plot_unscrambling; muse-spark-1.2-xhigh; checkpoint=muse-spark-1.2
LiveBench · python · 2026-06-25LiveBench · LiveBench Mini-SWE-Agent, 250-step limit Benchmark details LiveBench 2026-06-25 task snapshot. Task scores stay separate and related tasks share their reviewed family budget. Explicit checkpoint and effort labels only. Unit: percent. Source collected 2026-09-12.	Not reported	Not reported	50% Reported settings LiveBench Mini-SWE-Agent, 250-step limit; livebench-2026-06-25-python; muse-spark-1.2-xhigh; checkpoint=muse-spark-1.2
LiveBench · simplify · 2026-06-25LiveBench · LiveBench official task evaluation Benchmark details LiveBench 2026-06-25 task snapshot. Task scores stay separate and related tasks share their reviewed family budget. Explicit checkpoint and effort labels only. Unit: percent. Source collected 2026-09-12.	Not reported	Not reported	68.73% Reported settings LiveBench official task evaluation; livebench-2026-06-25-simplify; muse-spark-1.2-xhigh; checkpoint=muse-spark-1.2
LiveBench · spatial · 2026-06-25LiveBench · LiveBench official task evaluation Benchmark details LiveBench 2026-06-25 task snapshot. Task scores stay separate and related tasks share their reviewed family budget. Explicit checkpoint and effort labels only. Unit: percent. Source collected 2026-09-12.	Not reported	Not reported	96% Reported settings LiveBench official task evaluation; livebench-2026-06-25-spatial; muse-spark-1.2-xhigh; checkpoint=muse-spark-1.2
LiveBench · story generation · 2026-06-25LiveBench · LiveBench official task evaluation Benchmark details LiveBench 2026-06-25 task snapshot. Task scores stay separate and related tasks share their reviewed family budget. Explicit checkpoint and effort labels only. Unit: percent. Source collected 2026-09-12.	Not reported	Not reported	73.65% Reported settings LiveBench official task evaluation; livebench-2026-06-25-story_generation; muse-spark-1.2-xhigh; checkpoint=muse-spark-1.2
LiveBench · summarize · 2026-06-25LiveBench · LiveBench official task evaluation Benchmark details LiveBench 2026-06-25 task snapshot. Task scores stay separate and related tasks share their reviewed family budget. Explicit checkpoint and effort labels only. Unit: percent. Source collected 2026-09-12.	Not reported	Not reported	80.62% Reported settings LiveBench official task evaluation; livebench-2026-06-25-summarize; muse-spark-1.2-xhigh; checkpoint=muse-spark-1.2
LiveBench · tablejoin · 2026-06-25LiveBench · LiveBench official task evaluation Benchmark details LiveBench 2026-06-25 task snapshot. Task scores stay separate and related tasks share their reviewed family budget. Explicit checkpoint and effort labels only. Unit: percent. Source collected 2026-09-12.	Not reported	Not reported	46.83% Reported settings LiveBench official task evaluation; livebench-2026-06-25-tablejoin; muse-spark-1.2-xhigh; checkpoint=muse-spark-1.2
LiveBench · tablereformat · 2026-06-25LiveBench · LiveBench official task evaluation Benchmark details LiveBench 2026-06-25 task snapshot. Task scores stay separate and related tasks share their reviewed family budget. Explicit checkpoint and effort labels only. Unit: percent. Source collected 2026-09-12.	Not reported	Not reported	100% Reported settings LiveBench official task evaluation; livebench-2026-06-25-tablereformat; muse-spark-1.2-xhigh; checkpoint=muse-spark-1.2
LiveBench · theory of mind · 2026-06-25LiveBench · LiveBench official task evaluation Benchmark details LiveBench 2026-06-25 task snapshot. Task scores stay separate and related tasks share their reviewed family budget. Explicit checkpoint and effort labels only. Unit: percent. Source collected 2026-09-12.	Not reported	Not reported	80.77% Reported settings LiveBench official task evaluation; livebench-2026-06-25-theory_of_mind; muse-spark-1.2-xhigh; checkpoint=muse-spark-1.2
LiveBench · typescript · 2026-06-25LiveBench · LiveBench Mini-SWE-Agent, 250-step limit Benchmark details LiveBench 2026-06-25 task snapshot. Task scores stay separate and related tasks share their reviewed family budget. Explicit checkpoint and effort labels only. Unit: percent. Source collected 2026-09-12.	Not reported	Not reported	50% Reported settings LiveBench Mini-SWE-Agent, 250-step limit; livebench-2026-06-25-typescript; muse-spark-1.2-xhigh; checkpoint=muse-spark-1.2
LiveBench · typos · 2026-06-25LiveBench · LiveBench official task evaluation Benchmark details LiveBench 2026-06-25 task snapshot. Task scores stay separate and related tasks share their reviewed family budget. Explicit checkpoint and effort labels only. Unit: percent. Source collected 2026-09-12.	Not reported	Not reported	74% Reported settings LiveBench official task evaluation; livebench-2026-06-25-typos; muse-spark-1.2-xhigh; checkpoint=muse-spark-1.2
LiveBench · zebra puzzle · 2026-06-25LiveBench · LiveBench official task evaluation Benchmark details LiveBench 2026-06-25 task snapshot. Task scores stay separate and related tasks share their reviewed family budget. Explicit checkpoint and effort labels only. Unit: percent. Source collected 2026-09-12.	Not reported	Not reported	95.25% Reported settings LiveBench official task evaluation; livebench-2026-06-25-zebra_puzzle; muse-spark-1.2-xhigh; checkpoint=muse-spark-1.2
Epoch · SimpleQA Verified · v1.2.0Epoch AI · Epoch AI Inspect; task 1.2.0; scorer simpleqa_scorer Benchmark details Epoch AI internal evaluation. Mean accuracy under the published setting; exact task version and scorer stay separate. Related tasks share a family budget. Data by Epoch AI, CC BY. Unit: percent. Source collected 2026-09-12.	Not reported	Not reported	60.3% Reported settings Epoch AI Inspect; task 1.2.0; scorer simpleqa_scorer; model=muse-spark-1.2_xhigh; run=mLLmVVvo6t23MM5yxq7ryW; mean accuracy; https://epoch.ai/data/benchmarks.csv
Vals AI · Finance Agent v2Vals AI · Vals FAB v2 shared six-tool harness; two-hour task limit Benchmark details Overall weighted rubric accuracy, averaged over three runs on 450 tasks. Dealbreaker failures and timeouts score zero. Related categories and all-pass scores are not additional votes. Three-model judge panel; private test set. Unit: percent. Source collected 2026-09-12.	Not reported	Not reported	60.6% Reported settings {"checkpoint":"muse-spark-1.2","evaluatorModel":"meta/muse_spark_1_2","sourceUpdatedOn":"2026-09-10","reasoning_effort":"xhigh","compute_effort":null,"reasoning":null,"temperature":1,"top_p":null,"max_output_tokens":131072,"verbosity":null,"provider":"Meta","harness":null}
Vals AI · Code Migration v1Vals AI · Vals Code Migration shared agent harness Benchmark details Hidden behavior-test pass rate, equally weighted across 40 repositories (30 CLI and 10 COBOL-to-Java). Anti-cheat failures score zero. Code-quality ratings and language splits are not additional votes. Unit: percent. Source collected 2026-09-12.	Not reported	Not reported	29.95% Reported settings {"checkpoint":"muse-spark-1.2","evaluatorModel":"meta/muse_spark_1_2","sourceUpdatedOn":"2026-09-10","reasoning_effort":"xhigh","compute_effort":null,"reasoning":null,"temperature":1,"top_p":null,"max_output_tokens":131072,"verbosity":null,"provider":"Meta","harness":null}
Vals AI · Legal Research Bench v1Vals AI · Vals Legal Research shared five-tool harness; three-hour task limit Benchmark details All-pass accuracy on 208 private legal research tasks. Every expert rubric check must pass; GPT-5.4 judges responses. Partial-credit scores and practice-area splits are not additional votes. Unit: percent. Source collected 2026-09-12.	Not reported	Not reported	43.75% Reported settings {"checkpoint":"muse-spark-1.2","evaluatorModel":"meta/muse_spark_1_2","sourceUpdatedOn":"2026-09-10","reasoning_effort":"xhigh","compute_effort":null,"reasoning":null,"temperature":1,"top_p":null,"max_output_tokens":131072,"verbosity":null,"provider":"Meta","harness":null}
Vals AI · Excel Modeling Benchmark v1Vals AI · Vals EMB shared workbook agent harness; 3.5-hour task limit Benchmark details Mean of seven equally weighted task categories. Template submissions use recalculated Excel cell accuracy; scratch submissions use rubric checks judged by GPT-5.4 Mini XHigh. Partial credit does not mean task completion. Unit: percent. Source collected 2026-09-12.	Not reported	Not reported	56.98% Reported settings {"checkpoint":"muse-spark-1.2","evaluatorModel":"meta/muse_spark_1_2","sourceUpdatedOn":"2026-09-10","reasoning_effort":"xhigh","compute_effort":null,"reasoning":null,"temperature":1,"top_p":null,"max_output_tokens":131072,"verbosity":null,"provider":"Meta","harness":null}
Vals AI · MMLU-Pro v1Vals AI · Vals MMLU-Pro five-shot chain-of-thought; regex answer grading Benchmark details Mean accuracy across 14 subjects under Vals five-shot prompting. Subject splits share one family and are not additional votes. Vals labels this benchmark archived; it is historical corroboration, not ongoing frontier evaluation. Unit: percent. Source collected 2026-09-12.	Not reported	Not reported	88.28% Reported settings {"checkpoint":"muse-spark-1.2","evaluatorModel":"meta/muse_spark_1_2","sourceUpdatedOn":"2026-09-01","reasoning_effort":"xhigh","compute_effort":null,"reasoning":null,"temperature":1,"top_p":null,"max_output_tokens":131072,"verbosity":null,"provider":"Meta","harness":null}
Vals AI · Terminal-Bench 2.1Vals AI · Vals Terminus 2 harness; pass@1 on 89 tasks Benchmark details Overall task pass rate under the shared Terminus 2 configuration. All task tests must pass. Difficulty splits share one family. Fable 5 and Opus 5 mixed-checkpoint fallback runs are excluded. Unit: percent. Source collected 2026-09-12.	Not reported	Not reported	69.66% Reported settings {"checkpoint":"muse-spark-1.2","evaluatorModel":"meta/muse_spark_1_2","sourceUpdatedOn":"2026-09-10","reasoning_effort":"xhigh","compute_effort":null,"reasoning":null,"temperature":1,"top_p":null,"max_output_tokens":131072,"verbosity":null,"provider":"Meta","harness":null}
Vals AI · Vibe Code Bench v1.1Vals AI · Vals modified OpenHands harness; five hours or 1,000 turns per app Benchmark details Mean app test pass rate on the canonical v1.1 test set. Browser Use executes workflow tests; each test requires at least 90% of its substeps. Automated judging can introduce error. Alternate agents are excluded. Unit: percent. Source collected 2026-09-12.	Not reported	Not reported	79.1% Reported settings {"checkpoint":"muse-spark-1.2","evaluatorModel":"meta/muse_spark_1_2","sourceUpdatedOn":"2026-09-10","reasoning_effort":"xhigh","compute_effort":null,"reasoning":null,"temperature":1,"top_p":null,"max_output_tokens":131072,"verbosity":null,"provider":"Meta","harness":"OpenHands"}
Vals AI · Harvey Legal Agent Benchmark v1Vals AI · Vals Harvey held-out legal file-work protocol; internet disabled Benchmark details Mean task resolution across two judges (GPT-5.5 Medium and Sonnet 4.6), requiring every criterion to pass. Criteria pass rates and practice-area splits do not add votes. Shared Harvey family; Fable 5 fallback run excluded. Unit: percent. Source collected 2026-09-12.	Not reported	Not reported	25.42% Reported settings {"checkpoint":"muse-spark-1.2","evaluatorModel":"meta/muse_spark_1_2","sourceUpdatedOn":"2026-09-10","reasoning_effort":"xhigh","compute_effort":null,"reasoning":null,"temperature":1,"top_p":null,"max_output_tokens":131072,"verbosity":null,"provider":"Meta","harness":null}

What these comparisons mean

Each source reports its own effort labels. Matching labels do not establish equal compute budgets or identical fallback behavior. Open Reported settings to inspect the exact model name, agent and task coverage. Multiple results at one level remain visible rather than selecting the best. Source-reported None or Non-reasoning labels are not treated as evidence that an API supports those settings.

These measurements use their own dated source collection. The leaderboard fits identified configurations jointly; it contains no pooled model ratings. Explicit thinking budgets are separate configurations. Read the methodology.

Download all effort benchmark results · 7,424 results across 240 models · Collected 2026-09-12

Muse Spark 1.2 effort benchmarks

Muse Spark 1.2

Capability score evidence

One configuration, seven capabilities

Agentic

Hard reasoning

Coding

Human pref

Knowledge

Multimodal

Long context