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Claude Opus 4.5 vs Muse Wonder

Muse Wonder is cheaper on output tokens, while Muse Wonder offers a larger context window. Choose Claude Opus 4.5 or Muse Wonder based on the trade-off between cost, context, and the benchmarks that matter for your use case.

SpecClaude Opus 4.5Muse Wonder
ProviderAnthropicMeta
Input / 1M tokens$5.00$4.00
Output / 1M tokens$25.00$20.00
Context window200K1M
Parameters——
Open weightsNo—
ReleasedNov 2025—
LiveBench score76.0—
SWE-bench Verified score79.2—
FrontierMath score20.7—
Epoch Capabilities Index score150162
GPQA Diamond score86.0—
SWE-bench Multilingual score70.7—
LMArena (Chatbot Arena) Elo score14511499
LMArena WebDev Elo score14941652

FAQ

Is Claude Opus 4.5 or Muse Wonder cheaper?

Muse Wonder is cheaper on output tokens ($20.00 vs $25.00 per 1M).

Which has the larger context window, Claude Opus 4.5 or Muse Wonder?

Muse Wonder has the larger context window (1M tokens).

Pricing is indicative — confirm with the provider before production use. Highlighted values indicate the better figure for that row.