Opus 5.5 and GPT-6 Sol launched minutes apart; author scores 7 matchups
alex_verem · x · 2026-09-25
Anthropic's Opus 5.5 and OpenAI's GPT-6 Sol shipped within minutes of each other on Tuesday, triggering a wave of head-to-head comparisons. The author picked 7 of the best matchups and scored them one by one, showing how the two new models perform across different tasks.
Related event: Opus 5.5 beats GPT-6 Sol 6-1 in seven-task showdown(9 posts)→
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