Claude Opus 5.5 vs ox-alpha-max
Wins 4 of 4 areas
Coding · Reasoning · Math · Following instructions
Wins 0 of 4 areas
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Claude Opus 5.5 is the stronger all-rounder.
Scores updated · 7 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
- Fresh competition math problemsLiveBench · Mathematics+19.6points ahead
- Fixes real GitHub issues, working as an agentLiveBench · Agentic Coding+19.1points ahead
- Fresh logic puzzles that change regularlyLiveBench · Reasoning+15.6points ahead
Where ox-alpha-max pulls ahead
No clear win on a test scored out of 100.
Every test, side by side
All 7 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 19.171.752.6+19.1
- LiveBench · CodingClaude Opus 5.5 by 13.589.375.8+13.5
ReasoningClaude Opus 5.5
- LiveBench · ReasoningClaude Opus 5.5 by 15.692.276.6+15.6
Following instructionsClaude Opus 5.5
- LiveBench · Instruction FollowingClaude Opus 5.5 by 5.465.760.3+5.4
Other results2 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.
- livebench_languageClaude Opus 5.5 by 20.286.366.1+20.2
- livebench_data_analysisClaude Opus 5.5 by 4.580.375.8+4.5
Questions people ask
Which is better, Claude Opus 5.5 or ox-alpha-max?
Claude Opus 5.5 wins all four areas where both have results: coding, reasoning, math and following instructions. ox-alpha-max wins none.
Which is better for coding?
Claude Opus 5.5. It wins 2 of the 2 coding tests both models report; ox-alpha-max wins none.
How do you compare the two?
We use the 7 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 2 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.