Side-by-side benchmark comparison across knowledge, coding, math, and reasoning.
Claude Opus 4.5 is clearly ahead on the aggregate, 85 to 32. The gap is large enough that you do not need to squint at the spreadsheet to see the difference.
Claude Opus 4.5's sharpest advantage is in knowledge, where it averages 80.8 against 73.7. The single biggest benchmark swing on the page is MMLU, 99 to 73.7.
Claude Opus 4.5 gives you the larger context window at 200K, compared with 32K for DBRX Instruct.
Pick Claude Opus 4.5 if you want the stronger benchmark profile. DBRX Instruct only becomes the better choice if its workflow or ecosystem matters more than the raw scoreboard.
Claude Opus 4.5
80.8
DBRX Instruct
73.7
Claude Opus 4.5
72
DBRX Instruct
70.1
Claude Opus 4.5 is ahead overall, 85 to 32. The biggest single separator in this matchup is MMLU, where the scores are 99 and 73.7.
Claude Opus 4.5 has the edge for knowledge tasks in this comparison, averaging 80.8 versus 73.7. Inside this category, MMLU is the benchmark that creates the most daylight between them.
Claude Opus 4.5 has the edge for coding in this comparison, averaging 72 versus 70.1. Inside this category, HumanEval is the benchmark that creates the most daylight between them.
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