LessWrong posts by zvi

“GPT-5s Are Alive: Outside Reactions, the Router and the Resurrection of GPT-4o” by Zvi


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A key problem with having and interpreting reactions to GPT-5 is that it is often unclear whether the reaction is to GPT-5, GPT-5-Router or GPT-5-Thinking.

Another is that many of the things people are reacting to changed rapidly after release, such as rate limits, the effectiveness of the model selection router and alternative options, and the availability of GPT-4o.

This complicates the tradition I have in new AI model reviews, which is to organize and present various representative and noteworthy reactions to the new model, to give a sense of what people are thinking and the diversity of opinion.

I also had make more cuts than usual, since there were so many eyes on this one. I tried to keep proportions similar to the original sample as best I could.

Reactions are organized roughly in order from positive to negative, with the drama around GPT-4o [...]

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Outline:

(02:35) Tyler Cowen

(04:01) Ethan Mollick Thinks Ease Of Use Is A Big Deal

(05:42) The Router

(09:30) Remember To Use Thinking Mode

(14:50) The One Who Does Not Know How To Ask

(19:32) Nabeel Qureshi

(22:14) Other Positive Reactions

(27:01) It's A Good Model, Sir

(28:01) The Battle for Cursor Supremacy

(32:13) Automatic For The People

(36:17) Skeptical Reactions

(46:01) Colin Fraser Colin Frasiers

(48:13) I Want You Back

(01:01:09) The Verdict For Advanced Users Is Meh?

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First published:

August 12th, 2025

Source:

https://www.lesswrong.com/posts/uSGgByLKvRoKsDPih/gpt-5s-are-alive-outside-reactions-the-router-and-the

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Narrated by TYPE III AUDIO.

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