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GPT-6 Sol and Opus 5.5 nearly tied on ErrataBench, poster says

The poster says GPT-6 Sol and Opus 5.5 are neck and neck on ErrataBench with a similar performance-cost curve, but both trail Astra and Opus 5.

tmuxvim
@tmuxvimArchived 2026.09.24Originally posted 2026.09.23
GPT-6 Sol and Opus 5.5 nearly tied on ErrataBench, poster says
tmuxvim @tmuxvimOriginally posted 2026.09.23
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GPT-6 Sol and Opus 5.5 are very close on ErrataBench, neck and neck basically. very similar performance-cost relationship. both worse performance than Astra and... ...Opus 5.

x.com/tmuxvim/status/2102514284228137451Archived 2026.09.24 10:07