Ethan Mollick· @emollick · X·· 2026-07-24AI 评分28
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Ethan Mollick 认为仅通过聊天机器人可用的 GPT-5.6 Pro 是目前最聪明的模型，而 Codex 中的 GPT-5.6 Ultra 在困难任务上表现较弱。
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Agreed: GPT-5.6 Pro (which is only available via the chatbot) is the smartest model out there. GPT-5.6 Ultra (the best model in Codex) is not near as powerful on hard tasks.
For really hard problems: GPT-5.6 Sol Pro>Fable 5 Ultracode > GPT-5.6 Sol Ultra. (Yes, this is confusing)
gpt 5.6 pro is substantially smarter than 5.6 in codex. it is inordinately good at critiquing and fixing 5.6's dumb ideas and implementations. there must be a better way than asking 5.6 codex to write research reports, me pasting into pro, then copying instructions back!在 X 查看被引用的帖子
来源：Ethan Mollick · x.com