Head-to-head comparison across 4benchmark categories. Overall scores shown here use BenchLM's provisional ranking lane.
Claude Opus 4.5
80
Claude Opus 4.6
91
Verified leaderboard positions: Claude Opus 4.5 #7 · Claude Opus 4.6 #3
Pick Claude Opus 4.6 if you want the stronger benchmark profile. Claude Opus 4.5 only becomes the better choice if coding is the priority.
Agentic
+10.1 difference
Coding
+1.5 difference
Knowledge
+10.0 difference
Multimodal
+6.7 difference
Claude Opus 4.5
Claude Opus 4.6
$null / $null
$5 / $25
46 t/s
40 t/s
1.01s
1.78s
200K
1M
Pick Claude Opus 4.6 if you want the stronger benchmark profile. Claude Opus 4.5 only becomes the better choice if coding is the priority.
Claude Opus 4.6 is clearly ahead on the provisional aggregate, 91 to 80. The gap is large enough that you do not need to squint at the spreadsheet to see the difference.
Claude Opus 4.6's sharpest advantage is in agentic, where it averages 72.6 against 62.5. The single biggest benchmark swing on the page is SuperGPQA, 70.6% to 95%. Claude Opus 4.5 does hit back in coding, so the answer changes if that is the part of the workload you care about most.
Claude Opus 4.6 gives you the larger context window at 1M, compared with 200K for Claude Opus 4.5.
Claude Opus 4.6 is ahead on BenchLM's provisional leaderboard, 91 to 80. The biggest single separator in this matchup is SuperGPQA, where the scores are 70.6% and 95%.
Claude Opus 4.6 has the edge for knowledge tasks in this comparison, averaging 76.2 versus 66.2. Inside this category, SuperGPQA is the benchmark that creates the most daylight between them.
Claude Opus 4.5 has the edge for coding in this comparison, averaging 65.9 versus 64.4. Inside this category, SWE-bench Pro is the benchmark that creates the most daylight between them.
Claude Opus 4.6 has the edge for agentic tasks in this comparison, averaging 72.6 versus 62.5. Inside this category, OSWorld-Verified is the benchmark that creates the most daylight between them.
Claude Opus 4.6 has the edge for multimodal and grounded tasks in this comparison, averaging 77.3 versus 70.6. Inside this category, ScreenSpot Pro is the benchmark that creates the most daylight between them.
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