Head-to-head comparison

Claude Opus 4.5 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: 8
distinct benchmarks: 3
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 Claude Opus 4.5 and Muse Wonder Full
Attribute	Claude Opus 4.5	Muse Wonder Full
Provider	Anthropic	Meta
Released	Nov 2025	Oct 12, 2026
Availability	Active	Subscription only
Model type	Proprietary	Proprietary
Parameters	Not published	Not published
Architecture	Not published	Not published
Context window	200,000 tokens	1M tokens
Knowledge cutoff	May 2025	Not published
Technical sources	Model, Context	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 Claude Opus 4.5 and Muse Wonder Full
Price type	Claude Opus 4.5	Muse Wonder Full
API input	$5	—
API output	$25	—
Cache read	$0.5	Not listed
Cache write (5 min.)	$6.25	Not listed
Cache write (1 hr.)	$10	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 Claude Opus 4.5 and Muse Wonder Full
Model	Provider	Purchase route and tariff	Input per 1M tokens	Output per 1M tokens	Source
Claude Opus 4.5	Anthropic	Direct from developerStandard API	Lowest listed price: $5	Lowest listed price: $25	Source09/22/2026
	Amazon Bedrock	Via OpenRouteramazon-bedrock	Lowest listed price: $5	Lowest listed price: $25	Source10/16/2026
	Amazon Bedrock	Via OpenRouteramazon-bedrock/eu-west-1	$5.5	$27.5	Source10/16/2026
	Anthropic	Via OpenRouteranthropic	Lowest listed price: $5	Lowest listed price: $25	Source10/16/2026
	Azure	Via OpenRouterazure/global	Lowest listed price: $5	Lowest listed price: $25	Source10/16/2026
	Claude Platform on AWS	Via OpenRouterclaude-on-aws	Lowest listed price: $5	Lowest listed price: $25	Source10/16/2026
	Google	Via OpenRoutergoogle-vertex/global	Lowest listed price: $5	Lowest listed price: $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.

Claude Opus 4.5Muse Wonder Full

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

Claude Opus 4.582.837 %

Muse Wonder Full87.418 %

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

Claude Opus 4.545.174 %

Muse Wonder Full49.932 %

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

Claude Opus 4.583.246 %

Muse Wonder Full89.335 %

LegalBenchConclusion Tasks. Higher is better. Test setup not documented as identical

Claude Opus 4.587.7 %

Muse Wonder Full90.323 %

LegalBenchInterpretation Tasks. Higher is better. Test setup not documented as identical

Claude Opus 4.582.235 %

Muse Wonder Full84.991 %

LegalBenchIssue Tasks. Higher is better. Test setup not documented as identical

Claude Opus 4.584.152 %

Muse Wonder Full91.014 %

LegalBenchRhetoric Tasks. Higher is better. Test setup not documented as identical

Claude Opus 4.579.777 %

Muse Wonder Full83.625 %

LegalBenchRule Tasks. Higher is better. Test setup not documented as identical

Claude Opus 4.580.32 %

Muse Wonder Full87.136 %

Key to the marks:better valuebetter, but not conclusivetie

Benchmark scores for Claude Opus 4.5 and Muse Wonder Full
Benchmark and task	Claude Opus 4.5	Muse Wonder Full	Source
LegalBenchOverall Test details Test setup not documented as identicalNo direct winnerVersion: 1Metric: accuracyScoring: Higher is betterClaude Opus 4.5: Snapshot: claude-opus-4-5-20251101, Compute: high, Temperature: 1, Output limit: 64,000 tokens Muse Wonder Full: Reasoning: max, Temperature: 1, Output limit: 131,072 tokens	82.837 %	Higher measured value87.418 %	Vals AI Source details Data as of: 10/13/2026
MedCodeOverall Test details Test setup not documented as identicalNo direct winnerVersion: 1Metric: accuracyScoring: Higher is betterClaude Opus 4.5: Snapshot: claude-opus-4-5-20251101, Compute: high, Temperature: 1, Output limit: 30,000 tokens Muse Wonder Full: Reasoning: max, Temperature: 1, Output limit: 131,072 tokens	45.174 %	Higher measured value49.932 %	Vals AI Source details Data as of: 10/13/2026
MedScribeOverall Test details Test setup not documented as identicalNo direct winnerVersion: 1Metric: accuracyScoring: Higher is betterClaude Opus 4.5: Snapshot: claude-opus-4-5-20251101, Compute: high, Temperature: 1, Output limit: 30,000 tokens Muse Wonder Full: Reasoning: max, Temperature: 1, Output limit: 131,072 tokens	83.246 %	Higher measured value89.335 %	Vals AI Source details Data as of: 10/13/2026
LegalBenchConclusion Tasks Test details Test setup not documented as identicalNo direct winnerVersion: 1Metric: accuracyScoring: Higher is betterClaude Opus 4.5: Snapshot: claude-opus-4-5-20251101, Compute: high, Temperature: 1, Output limit: 64,000 tokens Muse Wonder Full: Reasoning: max, Temperature: 1, Output limit: 131,072 tokens	87.7 %	Higher measured value90.323 %	Vals AI Source details Data as of: 10/13/2026
LegalBenchInterpretation Tasks Test details Test setup not documented as identicalNo direct winnerVersion: 1Metric: accuracyScoring: Higher is betterClaude Opus 4.5: Snapshot: claude-opus-4-5-20251101, Compute: high, Temperature: 1, Output limit: 64,000 tokens Muse Wonder Full: Reasoning: max, Temperature: 1, Output limit: 131,072 tokens	82.235 %	Higher measured value84.991 %	Vals AI Source details Data as of: 10/13/2026
LegalBenchIssue Tasks Test details Test setup not documented as identicalNo direct winnerVersion: 1Metric: accuracyScoring: Higher is betterClaude Opus 4.5: Snapshot: claude-opus-4-5-20251101, Compute: high, Temperature: 1, Output limit: 64,000 tokens Muse Wonder Full: Reasoning: max, Temperature: 1, Output limit: 131,072 tokens	84.152 %	Higher measured value91.014 %	Vals AI Source details Data as of: 10/13/2026
LegalBenchRhetoric Tasks Test details Test setup not documented as identicalNo direct winnerVersion: 1Metric: accuracyScoring: Higher is betterClaude Opus 4.5: Snapshot: claude-opus-4-5-20251101, Compute: high, Temperature: 1, Output limit: 64,000 tokens Muse Wonder Full: Reasoning: max, Temperature: 1, Output limit: 131,072 tokens	79.777 %	Higher measured value83.625 %	Vals AI Source details Data as of: 10/13/2026
LegalBenchRule Tasks Test details Test setup not documented as identicalNo direct winnerVersion: 1Metric: accuracyScoring: Higher is betterClaude Opus 4.5: Snapshot: claude-opus-4-5-20251101, Compute: high, Temperature: 1, Output limit: 64,000 tokens Muse Wonder Full: Reasoning: max, Temperature: 1, Output limit: 131,072 tokens	80.32 %	Higher measured value87.136 %	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.

Claude Opus 4.5

Reasoning (requested): high

Current attempt

Run date: Oct 1, 2026
API provider: openrouter
Requested API model: anthropic/claude-opus-4.5
API model reported in response: anthropic/claude-opus-4.5
Reasoning setting: high
Pinned endpoint: Anthropic | anthropic/claude-4.5-opus-20251124
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: 21.6 s

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

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 Claude Opus 4.5 and Muse Wonder Full with other leading models using the same data and benchmark logic.

View the complete LLM comparison