Head-to-head comparison

GPT-5.4 mini vs. Muse Wonder Full

Compare published benchmark results from matching versions and cohorts, API pricing, and technical specifications. Any documented test setup differences remain visible.

shared result series: 129
distinct benchmarks: 10
latest retrieval: 2026-10-15

First modelSecond model

Specifications

General specifications

Release date, availability, context window, architecture, and published parameter counts at a glance. Undisclosed details remain marked as unavailable.

Specifications for GPT-5.4 mini and Muse Wonder Full
Attribute	GPT-5.4 mini	Muse Wonder Full
Provider	OpenAI	Meta
Released	Mar 17, 2026	Oct 12, 2026
Availability	Active	Subscription only
Model type	Proprietary	Proprietary
Parameters	Not published	Not published
Architecture	Not published	Not published
Context window	400,000 tokens	1M tokens
Knowledge cutoff	August 31, 2025	Not published
Technical sources	Model	Model, Context

Pricing

API pricing compared

The table compares official standard API rates per 1M tokens, including published cache pricing. Batch, fast, priority, regional surcharges, tool calls, and cloud platform pricing are excluded.

API pricing for GPT-5.4 mini and Muse Wonder Full
Price type	GPT-5.4 mini	Muse Wonder Full
API input	$0.75	—
API output	$4.5	—
Cache read	$0.075	Not listed
Cache write (5 min.)	Not listed	Not listed
Cache write (1 hr.)	Not listed	Not listed
Price verified	09/22/2026 Source	10/15/2026

Pricing by provider

Direct developer pricing and provider endpoint tariffs routed through OpenRouter are listed separately. Prices are in USD per 1M tokens. Context-dependent direct tiers plus regional, Flex, Priority, and other OpenRouter tariffs remain individually identifiable.

No provider tariff for Muse Wonder Full is available in the stored OpenRouter snapshot. The official direct price is still shown.

Provider pricing for GPT-5.4 mini and Muse Wonder Full
Model	Provider	Purchase route and tariff	Input per 1M tokens	Output per 1M tokens	Source
GPT-5.4 mini	OpenAI	Direct from developerStandard API	$0.75	$4.5	Source09/22/2026
	Azure	Via OpenRouterazure	$0.75	$4.5	Source10/16/2026
	Azure	Via OpenRouterazure/us	$0.825	$4.95	Source10/16/2026
	OpenAI	Via OpenRouteropenai	$0.75	$4.5	Source10/16/2026
	OpenAI	Via OpenRouteropenai/fast	$1.5	$9	Source10/16/2026
	OpenAI	Via OpenRouteropenai/flex	Lowest listed price: $0.375	Lowest listed price: $2.25	Source10/16/2026

Performance

Shared benchmarks

Only published results with the same benchmark version, task, metric, and comparison cohort are paired. Different reasoning levels, agents, harnesses, or output limits appear directly in the table.

Capability profile from matched benchmarks

Each axis averages directly matched benchmark families. A value of 100 means the stronger value within this pair, not a universal quality score.

Not enough directly matched categories for a reliable radar

Only 0 of at least 5 categories have comparable, direct model measurements. The benchmark tables below show the available evidence without filling missing axes.

GPT-5.4 miniMuse Wonder Full

Code MigrationOverall. Higher is better. Test setup not documented as identical

GPT-5.4 mini12.936 %

Muse Wonder Full61.033 %

EMBOverall. Higher is better. Test setup not documented as identical

GPT-5.4 mini45.426 %

Muse Wonder Full71.917 %

Finance Agent (v2)Overall. Higher is better. Test setup not documented as identical

GPT-5.4 mini45.36 %

Muse Wonder Full59.061 %

Harvey's Legal Agent BenchmarkOverall · Task fully resolved. Higher is better. Test setup not documented as identical

GPT-5.4 mini0 %

Muse Wonder Full21.667 %

Legal Research BenchOverall · All-pass. Higher is better. Test setup not documented as identical

GPT-5.4 mini12.5 %

Muse Wonder Full53.365 %

ProgramBenchOverall. Higher is better. Test setup not documented as identical

GPT-5.4 mini0 %

Muse Wonder Full0.5 %

Tax Agent BenchOverall. Higher is better. Test setup not documented as identical

GPT-5.4 mini8.808 %

Muse Wonder Full42.997 %

Terminal-Bench 4.0Overall. Higher is better. Test setup not documented as identical

GPT-5.4 mini2.525 %

Muse Wonder Full58.081 %

Vals IndexOverall. Higher is better. Test setup not documented as identical

GPT-5.4 mini33.169 %

Muse Wonder Full64.566 %

Vibe Code Bench v1.1Overall. Higher is better. Test setup not documented as identical

GPT-5.4 mini47.969 %

Muse Wonder Full85.996 %

Code MigrationCLI. Higher is better. Test setup not documented as identical

GPT-5.4 mini8.2 %

Muse Wonder Full58.044 %

EMBComps. Higher is better. Test setup not documented as identical

GPT-5.4 mini40.488 %

Muse Wonder Full80.89 %

Key to the marks:better valuebetter, but not conclusivetie

Benchmark scores for GPT-5.4 mini and Muse Wonder Full
Benchmark and task	GPT-5.4 mini	Muse Wonder Full	Source
Code MigrationOverall Test details Test setup not documented as identicalNo direct winnerVersion: 1Metric: accuracyScoring: Higher is betterGPT-5.4 mini: Snapshot: gpt-5.4-mini-2026-03-17, Reasoning: xhigh, Output limit: 128,000 tokens Muse Wonder Full: Reasoning: max, Temperature: 1, Output limit: 131,072 tokens	12.936 %	Higher measured value61.033 %	Vals AI Source details Data as of: 10/12/2026
EMBOverall Test details Test setup not documented as identicalNo direct winnerVersion: 1Metric: accuracyScoring: Higher is betterGPT-5.4 mini: Snapshot: gpt-5.4-mini-2026-03-17, Reasoning: xhigh, Output limit: 128,000 tokens Muse Wonder Full: Reasoning: max, Temperature: 1, Output limit: 131,072 tokens	45.426 %	Higher measured value71.917 %	Vals AI Source details Data as of: 10/12/2026
Finance Agent (v2)Overall Test details Test setup not documented as identicalNo direct winnerVersion: 2Metric: accuracyScoring: Higher is betterGPT-5.4 mini: Snapshot: gpt-5.4-mini-2026-03-17, Reasoning: xhigh, Output limit: 128,000 tokens Muse Wonder Full: Reasoning: max, Temperature: 1, Output limit: 131,072 tokens	45.36 %	Higher measured value59.061 %	Vals AI Source details Data as of: 10/12/2026
Harvey's Legal Agent BenchmarkOverall · Task fully resolved Test details Test setup not documented as identicalNo direct winnerVersion: 1Metric: task resolution rateScoring: Higher is betterGPT-5.4 mini: Snapshot: gpt-5.4-mini-2026-03-17, Reasoning: xhigh, Output limit: 128,000 tokens Muse Wonder Full: Reasoning: max, Temperature: 1, Output limit: 131,072 tokens	0 %	Higher measured value21.667 %	Vals AI Source details Data as of: 10/12/2026
Legal Research BenchOverall · All-pass Test details Test setup not documented as identicalNo direct winnerVersion: 1Metric: all-pass rateScoring: Higher is betterGPT-5.4 mini: Snapshot: gpt-5.4-mini-2026-03-17, Reasoning: xhigh, Output limit: 128,000 tokens Muse Wonder Full: Reasoning: max, Temperature: 1, Output limit: 131,072 tokens	12.5 %	Higher measured value53.365 %	Vals AI Source details Data as of: 10/12/2026
ProgramBenchOverall Test details Test setup not documented as identicalNo direct winnerVersion: 1Metric: fully resolved rateScoring: Higher is betterGPT-5.4 mini: Snapshot: gpt-5.4-mini-2026-03-17, Reasoning: xhigh, Output limit: 128,000 tokens Muse Wonder Full: Reasoning: max, Temperature: 1, Output limit: 131,072 tokens	0 %	Higher measured value0.5 %	Vals AI Source details Data as of: 10/12/2026
Tax Agent BenchOverall Test details Test setup not documented as identicalNo direct winnerVersion: 1Metric: accuracyScoring: Higher is betterGPT-5.4 mini: Snapshot: gpt-5.4-mini-2026-03-17, Reasoning: xhigh, Output limit: 128,000 tokens Muse Wonder Full: Reasoning: max, Temperature: 1, Output limit: 131,072 tokens	8.808 %	Higher measured value42.997 %	Vals AI Source details Data as of: 10/12/2026
Terminal-Bench 4.0Overall Test details Test setup not documented as identicalNo direct winnerVersion: 4.0Metric: accuracyScoring: Higher is betterGPT-5.4 mini: Snapshot: gpt-5.4-mini-2026-03-17, Reasoning: xhigh, Output limit: 128,000 tokens Muse Wonder Full: Reasoning: max, Temperature: 1, Output limit: 131,072 tokens	2.525 %	Higher measured value58.081 %	Vals AI Source details Data as of: 10/13/2026
Vals IndexOverall Test details Test setup not documented as identicalNo direct winnerVersion: 2.1Metric: weighted index scoreScoring: Higher is betterGPT-5.4 mini: Snapshot: gpt-5.4-mini-2026-03-17, Reasoning: xhigh, Output limit: 128,000 tokens Muse Wonder Full: Reasoning: max, Temperature: 1, Output limit: 131,072 tokens	33.169 %	Higher measured value64.566 %	Vals AI Source details Data as of: 10/13/2026
Vibe Code Bench v1.1Overall Test details Test setup not documented as identicalNo direct winnerVersion: 1.1Metric: accuracyScoring: Higher is betterGPT-5.4 mini: Snapshot: gpt-5.4-mini-2026-03-17, Reasoning: xhigh, Harness: OpenHands, Output limit: 128,000 tokens Muse Wonder Full: Reasoning: max, Harness: OpenHands, Temperature: 1, Output limit: 131,072 tokens	47.969 %	Higher measured value85.996 %	Vals AI Source details Data as of: 10/12/2026
Code MigrationCLI Test details Test setup not documented as identicalNo direct winnerVersion: 1Metric: accuracyScoring: Higher is betterGPT-5.4 mini: Snapshot: gpt-5.4-mini-2026-03-17, Reasoning: xhigh, Output limit: 128,000 tokens Muse Wonder Full: Reasoning: max, Temperature: 1, Output limit: 131,072 tokens	8.2 %	Higher measured value58.044 %	Vals AI Source details Data as of: 10/12/2026
EMBComps Test details Test setup not documented as identicalNo direct winnerVersion: 1Metric: accuracyScoring: Higher is betterGPT-5.4 mini: Snapshot: gpt-5.4-mini-2026-03-17, Reasoning: xhigh, Output limit: 128,000 tokens Muse Wonder Full: Reasoning: max, Temperature: 1, Output limit: 131,072 tokens	40.488 %	Higher measured value80.89 %	Vals AI Source details Data as of: 10/12/2026
Finance Agent (v2)Adjustments Test details Test setup not documented as identicalNo direct winnerVersion: 2Metric: accuracyScoring: Higher is betterGPT-5.4 mini: Snapshot: gpt-5.4-mini-2026-03-17, Reasoning: xhigh, Output limit: 128,000 tokens Muse Wonder Full: Reasoning: max, Temperature: 1, Output limit: 131,072 tokens	45.366 %	Higher measured value56.668 %	Vals AI Source details Data as of: 10/12/2026
Harvey's Legal Agent BenchmarkAntitrust Competition · Criteria passed Test details Test setup not documented as identicalNo direct winnerVersion: 1Metric: criteria pass rateScoring: Higher is betterGPT-5.4 mini: Snapshot: gpt-5.4-mini-2026-03-17, Reasoning: xhigh, Output limit: 128,000 tokens Muse Wonder Full: Reasoning: max, Temperature: 1, Output limit: 131,072 tokens	52.536 %	Higher measured value94.928 %	Vals AI Source details Data as of: 10/12/2026
Legal Research BenchAdministrative / Regulatory · All-pass Test details Test setup not documented as identicalNo direct winnerVersion: 1Metric: all-pass rateScoring: Higher is betterGPT-5.4 mini: Snapshot: gpt-5.4-mini-2026-03-17, Reasoning: xhigh, Output limit: 128,000 tokens Muse Wonder Full: Reasoning: max, Temperature: 1, Output limit: 131,072 tokens	15.152 %	Higher measured value63.636 %	Vals AI Source details Data as of: 10/12/2026
ProgramBenchAlmost Resolved Test details Test setup not documented as identicalNo direct winnerVersion: 1Metric: almost-resolved rateScoring: Higher is betterGPT-5.4 mini: Snapshot: gpt-5.4-mini-2026-03-17, Reasoning: xhigh, Output limit: 128,000 tokens Muse Wonder Full: Reasoning: max, Temperature: 1, Output limit: 131,072 tokens	3 %	Higher measured value8 %	Vals AI Source details Data as of: 10/12/2026
Tax Agent BenchControversy & Precedence Analysis Test details Test setup not documented as identicalNo direct winnerVersion: 1Metric: accuracyScoring: Higher is betterGPT-5.4 mini: Snapshot: gpt-5.4-mini-2026-03-17, Reasoning: xhigh, Output limit: 128,000 tokens Muse Wonder Full: Reasoning: max, Temperature: 1, Output limit: 131,072 tokens	3.333 %	Higher measured value26.667 %	Vals AI Source details Data as of: 10/12/2026
Terminal-Bench 4.0Hardware Test details Test setup not documented as identicalNo direct winnerVersion: 4.0Metric: accuracyScoring: Higher is betterGPT-5.4 mini: Snapshot: gpt-5.4-mini-2026-03-17, Reasoning: xhigh, Output limit: 128,000 tokens Muse Wonder Full: Reasoning: max, Temperature: 1, Output limit: 131,072 tokens	0 %	Higher measured value46.667 %	Vals AI Source details Data as of: 10/13/2026
Vals IndexCode Migration Test details Test setup not documented as identicalNo direct winnerVersion: 2.1Metric: benchmark scoreScoring: Higher is betterGPT-5.4 mini: Snapshot: gpt-5.4-mini-2026-03-17, Reasoning: xhigh, Output limit: 128,000 tokens Muse Wonder Full: Reasoning: max, Temperature: 1, Output limit: 131,072 tokens	13.015 %	Higher measured value60.256 %	Vals AI Source details Data as of: 10/13/2026
Code MigrationCOBOL Test details Test setup not documented as identicalNo direct winnerVersion: 1Metric: accuracyScoring: Higher is betterGPT-5.4 mini: Snapshot: gpt-5.4-mini-2026-03-17, Reasoning: xhigh, Output limit: 128,000 tokens Muse Wonder Full: Reasoning: max, Temperature: 1, Output limit: 131,072 tokens	27.143 %	Higher measured value70 %	Vals AI Source details Data as of: 10/12/2026
EMBDataroom Test details Test setup not documented as identicalNo direct winnerVersion: 1Metric: accuracyScoring: Higher is betterGPT-5.4 mini: Snapshot: gpt-5.4-mini-2026-03-17, Reasoning: xhigh, Output limit: 128,000 tokens Muse Wonder Full: Reasoning: max, Temperature: 1, Output limit: 131,072 tokens	48.286 %	Higher measured value85.257 %	Vals AI Source details Data as of: 10/12/2026
Finance Agent (v2)All-Pass Test details Test setup not documented as identicalNo direct winnerVersion: 2Metric: accuracyScoring: Higher is betterGPT-5.4 mini: Snapshot: gpt-5.4-mini-2026-03-17, Reasoning: xhigh, Output limit: 128,000 tokens Muse Wonder Full: Reasoning: max, Temperature: 1, Output limit: 131,072 tokens	32.369 %	Higher measured value49.037 %	Vals AI Source details Data as of: 10/12/2026
Harvey's Legal Agent BenchmarkAntitrust Competition · Task fully resolved Test details Test setup not documented as identicalNo direct winnerVersion: 1Metric: task resolution rateScoring: Higher is betterGPT-5.4 mini: Snapshot: gpt-5.4-mini-2026-03-17, Reasoning: xhigh, Output limit: 128,000 tokens Muse Wonder Full: Reasoning: max, Temperature: 1, Output limit: 131,072 tokens	0 %	Higher measured value20 %	Vals AI Source details Data as of: 10/12/2026
Legal Research BenchAdministrative / Regulatory · Weighted partial credit Test details Test setup not documented as identicalNo direct winnerVersion: 1Metric: weighted partial-credit scoreScoring: Higher is betterGPT-5.4 mini: Snapshot: gpt-5.4-mini-2026-03-17, Reasoning: xhigh, Output limit: 128,000 tokens Muse Wonder Full: Reasoning: max, Temperature: 1, Output limit: 131,072 tokens	69.72 %	Higher measured value92.809 %	Vals AI Source details Data as of: 10/12/2026
ProgramBenchFully Resolved Test details Test setup not documented as identicalNo direct winnerVersion: 1Metric: fully resolved rateScoring: Higher is betterGPT-5.4 mini: Snapshot: gpt-5.4-mini-2026-03-17, Reasoning: xhigh, Output limit: 128,000 tokens Muse Wonder Full: Reasoning: max, Temperature: 1, Output limit: 131,072 tokens	0 %	Higher measured value0.5 %	Vals AI Source details Data as of: 10/12/2026
Tax Agent BenchControversy & Precedence Analysis Test details Test setup not documented as identicalNo direct winnerVersion: 1Metric: accuracyScoring: Higher is betterGPT-5.4 mini: Snapshot: gpt-5.4-mini-2026-03-17, Reasoning: xhigh, Output limit: 128,000 tokens Muse Wonder Full: Reasoning: max, Temperature: 1, Output limit: 131,072 tokens	32.174 %	Higher measured value76.097 %	Vals AI Source details Data as of: 10/12/2026
Terminal-Bench 4.0Media Test details Test setup not documented as identicalNo direct winnerVersion: 4.0Metric: accuracyScoring: Higher is betterGPT-5.4 mini: Snapshot: gpt-5.4-mini-2026-03-17, Reasoning: xhigh, Output limit: 128,000 tokens Muse Wonder Full: Reasoning: max, Temperature: 1, Output limit: 131,072 tokens	0 %	Higher measured value58.333 %	Vals AI Source details Data as of: 10/13/2026
Vals IndexEMB Test details Test setup not documented as identicalNo direct winnerVersion: 2.1Metric: benchmark scoreScoring: Higher is betterGPT-5.4 mini: Snapshot: gpt-5.4-mini-2026-03-17, Reasoning: xhigh, Output limit: 128,000 tokens Muse Wonder Full: Reasoning: max, Temperature: 1, Output limit: 131,072 tokens	45.426 %	Higher measured value71.917 %	Vals AI Source details Data as of: 10/13/2026
Code MigrationCode Quality Test details Test setup not documented as identicalNo direct winnerVersion: 1Metric: mean reviewer code-quality ratingScoring: Higher is betterGPT-5.4 mini: Snapshot: gpt-5.4-mini-2026-03-17, Reasoning: xhigh, Output limit: 128,000 tokens Muse Wonder Full: Reasoning: max, Temperature: 1, Output limit: 131,072 tokens	3.053 / 5	Higher measured value4.244 / 5	Vals AI Source details Data as of: 10/12/2026
EMBDCF Test details Test setup not documented as identicalNo direct winnerVersion: 1Metric: accuracyScoring: Higher is betterGPT-5.4 mini: Snapshot: gpt-5.4-mini-2026-03-17, Reasoning: xhigh, Output limit: 128,000 tokens Muse Wonder Full: Reasoning: max, Temperature: 1, Output limit: 131,072 tokens	40.605 %	Higher measured value66.579 %	Vals AI Source details Data as of: 10/12/2026
Finance Agent (v2)Comparables Test details Test setup not documented as identicalNo direct winnerVersion: 2Metric: accuracyScoring: Higher is betterGPT-5.4 mini: Snapshot: gpt-5.4-mini-2026-03-17, Reasoning: xhigh, Output limit: 128,000 tokens Muse Wonder Full: Reasoning: max, Temperature: 1, Output limit: 131,072 tokens	40.273 %	Higher measured value46.809 %	Vals AI Source details Data as of: 10/12/2026
Harvey's Legal Agent BenchmarkArbitration International Dispute Resolution · Criteria passed Test details Test setup not documented as identicalNo direct winnerVersion: 1Metric: criteria pass rateScoring: Higher is betterGPT-5.4 mini: Snapshot: gpt-5.4-mini-2026-03-17, Reasoning: xhigh, Output limit: 128,000 tokens Muse Wonder Full: Reasoning: max, Temperature: 1, Output limit: 131,072 tokens	63.125 %	Higher measured value95.699 %	Vals AI Source details Data as of: 10/12/2026
Legal Research BenchBusiness & Commercial · All-pass Test details Test setup not documented as identicalNo direct winnerVersion: 1Metric: all-pass rateScoring: Higher is betterGPT-5.4 mini: Snapshot: gpt-5.4-mini-2026-03-17, Reasoning: xhigh, Output limit: 128,000 tokens Muse Wonder Full: Reasoning: max, Temperature: 1, Output limit: 131,072 tokens	11.628 %	Higher measured value58.14 %	Vals AI Source details Data as of: 10/12/2026
ProgramBenchRaw Pass Rate Test details Test setup not documented as identicalNo direct winnerVersion: 1Metric: raw test pass rateScoring: Higher is betterGPT-5.4 mini: Snapshot: gpt-5.4-mini-2026-03-17, Reasoning: xhigh, Output limit: 128,000 tokens Muse Wonder Full: Reasoning: max, Temperature: 1, Output limit: 131,072 tokens	Higher measured value54.375 %	24.187 %	Vals AI Source details Data as of: 10/12/2026
Tax Agent BenchCurrent & Temporal Analysis Test details Test setup not documented as identicalNo direct winnerVersion: 1Metric: accuracyScoring: Higher is betterGPT-5.4 mini: Snapshot: gpt-5.4-mini-2026-03-17, Reasoning: xhigh, Output limit: 128,000 tokens Muse Wonder Full: Reasoning: max, Temperature: 1, Output limit: 131,072 tokens	10 %	Higher measured value56.614 %	Vals AI Source details Data as of: 10/12/2026
Terminal-Bench 4.0ML Test details Test setup not documented as identicalNo direct winnerVersion: 4.0Metric: accuracyScoring: Higher is betterGPT-5.4 mini: Snapshot: gpt-5.4-mini-2026-03-17, Reasoning: xhigh, Output limit: 128,000 tokens Muse Wonder Full: Reasoning: max, Temperature: 1, Output limit: 131,072 tokens	0 %	Higher measured value66.667 %	Vals AI Source details Data as of: 10/13/2026
Vals IndexFinance Agent v2 Test details Test setup not documented as identicalNo direct winnerVersion: 2.1Metric: benchmark scoreScoring: Higher is betterGPT-5.4 mini: Snapshot: gpt-5.4-mini-2026-03-17, Reasoning: xhigh, Output limit: 128,000 tokens Muse Wonder Full: Reasoning: max, Temperature: 1, Output limit: 131,072 tokens	45.36 %	Higher measured value59.061 %	Vals AI Source details Data as of: 10/13/2026
EMBLBO Test details Test setup not documented as identicalNo direct winnerVersion: 1Metric: accuracyScoring: Higher is betterGPT-5.4 mini: Snapshot: gpt-5.4-mini-2026-03-17, Reasoning: xhigh, Output limit: 128,000 tokens Muse Wonder Full: Reasoning: max, Temperature: 1, Output limit: 131,072 tokens	41.608 %	Higher measured value59.586 %	Vals AI Source details Data as of: 10/12/2026
Finance Agent (v2)Disclosure Analysis Test details Test setup not documented as identicalNo direct winnerVersion: 2Metric: accuracyScoring: Higher is betterGPT-5.4 mini: Snapshot: gpt-5.4-mini-2026-03-17, Reasoning: xhigh, Output limit: 128,000 tokens Muse Wonder Full: Reasoning: max, Temperature: 1, Output limit: 131,072 tokens	48.338 %	Higher measured value71.553 %	Vals AI Source details Data as of: 10/12/2026
Harvey's Legal Agent BenchmarkArbitration International Dispute Resolution · Task fully resolved Test details Test setup not documented as identicalNo direct winnerVersion: 1Metric: task resolution rateScoring: Higher is betterGPT-5.4 mini: Snapshot: gpt-5.4-mini-2026-03-17, Reasoning: xhigh, Output limit: 128,000 tokens Muse Wonder Full: Reasoning: max, Temperature: 1, Output limit: 131,072 tokens	0 %	Higher measured value20 %	Vals AI Source details Data as of: 10/12/2026
Legal Research BenchBusiness & Commercial · Weighted partial credit Test details Test setup not documented as identicalNo direct winnerVersion: 1Metric: weighted partial-credit scoreScoring: Higher is betterGPT-5.4 mini: Snapshot: gpt-5.4-mini-2026-03-17, Reasoning: xhigh, Output limit: 128,000 tokens Muse Wonder Full: Reasoning: max, Temperature: 1, Output limit: 131,072 tokens	71.172 %	Higher measured value89.811 %	Vals AI Source details Data as of: 10/12/2026
Tax Agent BenchCurrent & Temporal Analysis Test details Test setup not documented as identicalNo direct winnerVersion: 1Metric: accuracyScoring: Higher is betterGPT-5.4 mini: Snapshot: gpt-5.4-mini-2026-03-17, Reasoning: xhigh, Output limit: 128,000 tokens Muse Wonder Full: Reasoning: max, Temperature: 1, Output limit: 131,072 tokens	38.553 %	Higher measured value78.312 %	Vals AI Source details Data as of: 10/12/2026
Terminal-Bench 4.0Operations Test details Test setup not documented as identicalNo direct winnerVersion: 4.0Metric: accuracyScoring: Higher is betterGPT-5.4 mini: Snapshot: gpt-5.4-mini-2026-03-17, Reasoning: xhigh, Output limit: 128,000 tokens Muse Wonder Full: Reasoning: max, Temperature: 1, Output limit: 131,072 tokens	0 %	Higher measured value48.148 %	Vals AI Source details Data as of: 10/13/2026
Vals IndexHLAB Test details Test setup not documented as identicalNo direct winnerVersion: 2.1Metric: benchmark scoreScoring: Higher is betterGPT-5.4 mini: Snapshot: gpt-5.4-mini-2026-03-17, Reasoning: xhigh, Output limit: 128,000 tokens Muse Wonder Full: Reasoning: max, Temperature: 1, Output limit: 131,072 tokens	0 %	Higher measured value21.667 %	Vals AI Source details Data as of: 10/13/2026
EMBM&A Test details Test setup not documented as identicalNo direct winnerVersion: 1Metric: accuracyScoring: Higher is betterGPT-5.4 mini: Snapshot: gpt-5.4-mini-2026-03-17, Reasoning: xhigh, Output limit: 128,000 tokens Muse Wonder Full: Reasoning: max, Temperature: 1, Output limit: 131,072 tokens	49.814 %	Higher measured value78.304 %	Vals AI Source details Data as of: 10/12/2026
Finance Agent (v2)Earnings Analysis Test details Test setup not documented as identicalNo direct winnerVersion: 2Metric: accuracyScoring: Higher is betterGPT-5.4 mini: Snapshot: gpt-5.4-mini-2026-03-17, Reasoning: xhigh, Output limit: 128,000 tokens Muse Wonder Full: Reasoning: max, Temperature: 1, Output limit: 131,072 tokens	65.294 %	Higher measured value78.596 %	Vals AI Source details Data as of: 10/12/2026
Harvey's Legal Agent BenchmarkBanking Finance · Criteria passed Test details Test setup not documented as identicalNo direct winnerVersion: 1Metric: criteria pass rateScoring: Higher is betterGPT-5.4 mini: Snapshot: gpt-5.4-mini-2026-03-17, Reasoning: xhigh, Output limit: 128,000 tokens Muse Wonder Full: Reasoning: max, Temperature: 1, Output limit: 131,072 tokens	68.401 %	Higher measured value92.565 %	Vals AI Source details Data as of: 10/12/2026
Legal Research BenchCivil Litigation · All-pass Test details Test setup not documented as identicalNo direct winnerVersion: 1Metric: all-pass rateScoring: Higher is betterGPT-5.4 mini: Snapshot: gpt-5.4-mini-2026-03-17, Reasoning: xhigh, Output limit: 128,000 tokens Muse Wonder Full: Reasoning: max, Temperature: 1, Output limit: 131,072 tokens	14.815 %	Higher measured value44.444 %	Vals AI Source details Data as of: 10/12/2026
Tax Agent BenchFact-Pattern Analysis Test details Test setup not documented as identicalNo direct winnerVersion: 1Metric: accuracyScoring: Higher is betterGPT-5.4 mini: Snapshot: gpt-5.4-mini-2026-03-17, Reasoning: xhigh, Output limit: 128,000 tokens Muse Wonder Full: Reasoning: max, Temperature: 1, Output limit: 131,072 tokens	6.977 %	Higher measured value46.512 %	Vals AI Source details Data as of: 10/12/2026
Terminal-Bench 4.0Science Test details Test setup not documented as identicalNo direct winnerVersion: 4.0Metric: accuracyScoring: Higher is betterGPT-5.4 mini: Snapshot: gpt-5.4-mini-2026-03-17, Reasoning: xhigh, Output limit: 128,000 tokens Muse Wonder Full: Reasoning: max, Temperature: 1, Output limit: 131,072 tokens	2.381 %	Higher measured value57.143 %	Vals AI Source details Data as of: 10/13/2026
Vals IndexLegal Research Test details Test setup not documented as identicalNo direct winnerVersion: 2.1Metric: benchmark scoreScoring: Higher is betterGPT-5.4 mini: Snapshot: gpt-5.4-mini-2026-03-17, Reasoning: xhigh, Output limit: 128,000 tokens Muse Wonder Full: Reasoning: max, Temperature: 1, Output limit: 131,072 tokens	12.5 %	Higher measured value53.365 %	Vals AI Source details Data as of: 10/13/2026
EMBMisc Test details Test setup not documented as identicalNo direct winnerVersion: 1Metric: accuracyScoring: Higher is betterGPT-5.4 mini: Snapshot: gpt-5.4-mini-2026-03-17, Reasoning: xhigh, Output limit: 128,000 tokens Muse Wonder Full: Reasoning: max, Temperature: 1, Output limit: 131,072 tokens	46.346 %	Higher measured value64.242 %	Vals AI Source details Data as of: 10/12/2026
Finance Agent (v2)Financial Modeling Test details Test setup not documented as identicalNo direct winnerVersion: 2Metric: accuracyScoring: Higher is betterGPT-5.4 mini: Snapshot: gpt-5.4-mini-2026-03-17, Reasoning: xhigh, Output limit: 128,000 tokens Muse Wonder Full: Reasoning: max, Temperature: 1, Output limit: 131,072 tokens	19.617 %	Higher measured value23.736 %	Vals AI Source details Data as of: 10/12/2026
Harvey's Legal Agent BenchmarkBanking Finance · Task fully resolved Test details Test setup not documented as identicalNo direct winnerVersion: 1Metric: task resolution rateScoring: Higher is betterGPT-5.4 mini: Snapshot: gpt-5.4-mini-2026-03-17, Reasoning: xhigh, Output limit: 128,000 tokens Muse Wonder Full: Reasoning: max, Temperature: 1, Output limit: 131,072 tokens	0 %	Higher measured value20 %	Vals AI Source details Data as of: 10/12/2026
Legal Research BenchCivil Litigation · Weighted partial credit Test details Test setup not documented as identicalNo direct winnerVersion: 1Metric: weighted partial-credit scoreScoring: Higher is betterGPT-5.4 mini: Snapshot: gpt-5.4-mini-2026-03-17, Reasoning: xhigh, Output limit: 128,000 tokens Muse Wonder Full: Reasoning: max, Temperature: 1, Output limit: 131,072 tokens	67.267 %	Higher measured value92.925 %	Vals AI Source details Data as of: 10/12/2026
Tax Agent BenchFact-Pattern Analysis Test details Test setup not documented as identicalNo direct winnerVersion: 1Metric: accuracyScoring: Higher is betterGPT-5.4 mini: Snapshot: gpt-5.4-mini-2026-03-17, Reasoning: xhigh, Output limit: 128,000 tokens Muse Wonder Full: Reasoning: max, Temperature: 1, Output limit: 131,072 tokens	36.518 %	Higher measured value74.764 %	Vals AI Source details Data as of: 10/12/2026
Terminal-Bench 4.0Security Test details Test setup not documented as identicalNo direct winnerVersion: 4.0Metric: accuracyScoring: Higher is betterGPT-5.4 mini: Snapshot: gpt-5.4-mini-2026-03-17, Reasoning: xhigh, Output limit: 128,000 tokens Muse Wonder Full: Reasoning: max, Temperature: 1, Output limit: 131,072 tokens	0 %	Higher measured value86.667 %	Vals AI Source details Data as of: 10/13/2026
Vals IndexTax Agent Test details Test setup not documented as identicalNo direct winnerVersion: 2.1Metric: benchmark scoreScoring: Higher is betterGPT-5.4 mini: Snapshot: gpt-5.4-mini-2026-03-17, Reasoning: xhigh, Output limit: 128,000 tokens Muse Wonder Full: Reasoning: max, Temperature: 1, Output limit: 131,072 tokens	36.586 %	Higher measured value75.001 %	Vals AI Source details Data as of: 10/13/2026
EMBOperating Test details Test setup not documented as identicalNo direct winnerVersion: 1Metric: accuracyScoring: Higher is betterGPT-5.4 mini: Snapshot: gpt-5.4-mini-2026-03-17, Reasoning: xhigh, Output limit: 128,000 tokens Muse Wonder Full: Reasoning: max, Temperature: 1, Output limit: 131,072 tokens	50.834 %	Higher measured value68.56 %	Vals AI Source details Data as of: 10/12/2026
Finance Agent (v2)General Qualitative Analysis Test details Test setup not documented as identicalNo direct winnerVersion: 2Metric: accuracyScoring: Higher is betterGPT-5.4 mini: Snapshot: gpt-5.4-mini-2026-03-17, Reasoning: xhigh, Output limit: 128,000 tokens Muse Wonder Full: Reasoning: max, Temperature: 1, Output limit: 131,072 tokens	46.366 %	Higher measured value74.179 %	Vals AI Source details Data as of: 10/12/2026
Harvey's Legal Agent BenchmarkBankruptcy Restructuring · Criteria passed Test details Test setup not documented as identicalNo direct winnerVersion: 1Metric: criteria pass rateScoring: Higher is betterGPT-5.4 mini: Snapshot: gpt-5.4-mini-2026-03-17, Reasoning: xhigh, Output limit: 128,000 tokens Muse Wonder Full: Reasoning: max, Temperature: 1, Output limit: 131,072 tokens	57.353 %	Higher measured value91.003 %	Vals AI Source details Data as of: 10/12/2026
Legal Research BenchConstitutional / Civil Rights · All-pass Test details Test setup not documented as identicalNo direct winnerVersion: 1Metric: all-pass rateScoring: Higher is betterGPT-5.4 mini: Snapshot: gpt-5.4-mini-2026-03-17, Reasoning: xhigh, Output limit: 128,000 tokens Muse Wonder Full: Reasoning: max, Temperature: 1, Output limit: 131,072 tokens	13.158 %	Higher measured value47.368 %	Vals AI Source details Data as of: 10/12/2026
Tax Agent BenchForms & Filings Test details Test setup not documented as identicalNo direct winnerVersion: 1Metric: accuracyScoring: Higher is betterGPT-5.4 mini: Snapshot: gpt-5.4-mini-2026-03-17, Reasoning: xhigh, Output limit: 128,000 tokens Muse Wonder Full: Reasoning: max, Temperature: 1, Output limit: 131,072 tokens	3.333 %	Higher measured value30 %	Vals AI Source details Data as of: 10/12/2026
Terminal-Bench 4.0Software Test details Test setup not documented as identicalNo direct winnerVersion: 4.0Metric: accuracyScoring: Higher is betterGPT-5.4 mini: Snapshot: gpt-5.4-mini-2026-03-17, Reasoning: xhigh, Output limit: 128,000 tokens Muse Wonder Full: Reasoning: max, Temperature: 1, Output limit: 131,072 tokens	7.407 %	Higher measured value53.704 %	Vals AI Source details Data as of: 10/13/2026
Key to the marks:better valuebetter, but not conclusivetie

Our model tests

Our tests

There is no shared test round for this selection. Results from different rounds are not mixed.

Earlier tests

Pelican on a bicycle

A community classic for free-form SVG drawing.

GPT-5.4 mini

Reasoning (requested): high

Current attempt

Run date: Oct 2, 2026
API provider: openrouter
Requested API model: openai/gpt-5.4-mini
API model reported in response: openai/gpt-5.4-mini
Reasoning setting: high
Pinned endpoint: OpenAI | openai/gpt-5.4-mini-20260317
Temperature: Provider default
Token limit including reasoning: 8,192 tokens
Test protocol: community-visual-tests-v1
Technical checks: Passed, not a quality rating
Response time: 13.5 s

Visually reviewed. This individual test does not establish overall model quality.

Earlier attempts (2)

Oct 1, 2026API request failedReasoning setting: high
Sep 7, 2026API request failedReasoning setting: high

Muse Wonder Full

Not tested yet

Prompt and test conditions

Generate an SVG of a pelican riding a bicycle

Token limit including reasoning: 8,192 tokens

Task origin (Simon Willison)

How to read this comparison

Winning one benchmark is not an overall verdict

Your workload, budget, and required context length matter most. A coding benchmark says little about visual understanding or agent performance.

The standard price table uses direct developer rates. The provider comparison labels OpenRouter endpoints, regions, and special tariffs separately.

Every result links to its measurement source and retrieval date. Labels distinguish vendor reports, official benchmark leaderboards, and independent evaluations. Disputed or archived results are excluded.

More matchups

Compare GPT-5.4 mini and Muse Wonder Full with other leading models using the same data and benchmark logic.

View the complete LLM comparison