Full benchmark roundup: Opus 5.5 beats GPT-6 Astra and Sol at a higher cost
UnknownEssence · reddit · 2026-09-23
A Reddit user compiled every available benchmark comparison between Opus 5.5 and OpenAI's GPT-6 Astra/Sol models. The takeaway: Opus 5.5 leads across the board, but at a noticeably higher price point.
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