Claude Opus 4.6 is the stronger all-rounder.
Scores updated · 6 tests both models report · How we compare
Where each one wins
Tests won in each of the two 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.
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.
Claude Opus 4.6 costs 78% less for the same work.
The biggest differences
The tests each model wins by the widest margin, up to three each. Scores are out of 100.
Where Claude Opus 4.6 pulls ahead
- Abstract visual puzzles that people can solveARC-AGI-2+50.5points ahead
- Unpublished advanced math problemsFrontierMath Tiers 1-3 (v2)+10.2points ahead
- Extremely hard research-level math problemsFrontierMath Tier 4+7.3points ahead
Where GPT-5 Pro pulls ahead
No clear win on a test scored out of 100.
Every test, side by side
All 6 tests both models report. The winning score is in its model's colour; marks a score checked independently.
ReasoningClaude Opus 4.6
- ARC-AGI-2Claude Opus 4.6 by 50.568.818.3+50.5
- SimpleBenchClaude Opus 4.6 by 667.661.6+6
MathClaude Opus 4.6
- FrontierMath Tiers 1-3 (v2)Claude Opus 4.6 by 10.26655.8+10.2
- FrontierMath Tier 4Claude Opus 4.6 by 7.326.819.5+7.3
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.
- ARC-AGI-1Claude Opus 4.6 by 22.89370.2+22.8
- frontiermath_tier_4_v1Claude Opus 4.6 by 8.322.914.6+8.3
Questions people ask
Which is better, Claude Opus 4.6 or GPT-5 Pro?
Claude Opus 4.6 wins all two areas where both have results: reasoning and math. GPT-5 Pro wins none.
Which is cheaper?
Claude Opus 4.6 costs $5.00 per million input tokens and $25.00 per million output tokens; GPT-5 Pro costs $15.00 and $120.00. That makes Claude Opus 4.6 about 78% cheaper for the same work.
How do you compare the two?
We use the 6 benchmark tests both models have published scores on. The verdict counts the 4 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.