MaxxBench tests coding models on modified DeepSWE tasks
Overview
loresjpg introduces MaxxBench, a set of 89 DeepSWE tasks with small changes to the instructions or starting code.
Deedy, posting on X, says the benchmark shows most models are severely benchmaxxed. He reports that models clustered around 74% on DeepSWE end up 23 percentage points apart on MaxxBench, and that Opus 5.5 was the only model whose score rose on the modified tasks.
Written by AI from the articles below · updated Nov 7, 12:15 PM ET
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Deedy@deedydasXMaxxBench tests coding models on modified DeepSWE tasksAIDeedy says Opus 5.5 was the only model whose DeepSWE score rose when small task changes were made, calling most models severely benchmaxxed. loresjpg introduces MaxxBench, 89 DeepSWE tasks with slight changes to instructions or starting code, reporting that models clustered around 74% on DeepSWE end up 23 percentage points apart.

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