Claude Opus 5.5 vs muse-wonder-1.0
Wins 2 of 4 areas
Coding · Reasoning
Wins 1 of 4 areas
Following instructions
Claude Opus 5.5 wins more areas, narrowly.muse-wonder-1.0 is better at following instructions.
Scores updated · 8 tests both models report · How we compare
Where each one wins
Tests won in each of the four areas where both have results. Each piece is one test, so a longer bar means more evidence; grey means the two scored within a point of each other.
Reasoning, math and following instructions rest on a single test each.
What it costs
Prices per million tokens, roughly 750,000 words. The bars show the cost of a million tokens read plus a million written.
The biggest differences
The tests each model wins by the widest margin, up to three each. Scores are out of 100.
Where Claude Opus 5.5 pulls ahead
- Fixes real GitHub issues, working as an agentLiveBench · Agentic Coding+9points ahead
- Programming problems, refreshed regularlyLiveBench · Coding+8.6points ahead
- Fresh logic puzzles that change regularlyLiveBench · Reasoning+1.6points ahead
Where muse-wonder-1.0 pulls ahead
- Follows detailed instructions exactlyLiveBench · Instruction Following+7.3points ahead
Every test, side by side
All 8 tests both models report. The winning score is in its model's colour; marks a score checked independently.
CodingClaude Opus 5.5
- LiveBench · Agentic CodingClaude Opus 5.5 by 971.762.7+9
- LiveBench · CodingClaude Opus 5.5 by 8.689.380.7+8.6
ReasoningClaude Opus 5.5
- LiveBench · ReasoningClaude Opus 5.5 by 1.692.290.6+1.6
Following instructionsmuse-wonder-1.0
- LiveBench · Instruction Followingmuse-wonder-1.0 by 7.365.773+7.3
Other results3 tests, not counted
Tests outside the eight areas. They are not counted above: several are summary scores built from other tests, or the same test under another name.
- HiL-Bench (Tools-allowed)muse-wonder-1.0 by 20.75979.7+20.7
- livebench_languageClaude Opus 5.5 by 3.486.382.9+3.4
- livebench_data_analysismuse-wonder-1.0 by 1.380.381.6+1.3
Questions people ask
Which is better, Claude Opus 5.5 or muse-wonder-1.0?
Claude Opus 5.5 wins two of the four areas where both have results: coding and reasoning. muse-wonder-1.0 wins following instructions. They are level on math.
Which is better for coding?
Claude Opus 5.5. It wins 2 of the 2 coding tests both models report; muse-wonder-1.0 wins none.
How do you compare the two?
We use the 8 benchmark tests both models have published scores on. The verdict counts the 5 tests in the eight capability areas, and a gap under one point (ten on rating-style scales) counts as a tie. The other 3 are listed but not counted, because several are summary scores or repeat a test. Each score is the one shown on the model's own page.