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Comment by furyofantares

4 hours ago

I'd been on Codex for a while and with Codex 5.2 I:

1) No longer found the dumb zone

2) No longer feared compaction

Switching to Opus for stupid political reasons, I still have not had the dumb zone - but I'm back to disliking compaction events and so the smaller context window it has, has really hurt.

I hope they copy OpenAI's compaction magic soon, but I am also very excited to try the longer context window.

15 comments

furyofantares

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mgambati  3 hours ago

1m context in OpenAI and Gemini is just marketing. Opus is the only model to provide real usable bug context.

  • furyofantares  2 hours ago

    I'm directly conveying my actual experience to you. I have tasks that fill up Opus context very quickly (at the 200k context) and which took MUCH longer to fill up Codex since 5.2 (which I think had 400k context at the time).

    This is direct comparison. I spent months subscribed to both of their $200/mo plans. I would try both and Opus always filled up fast while Codex continued working great. It's also direct experience that Codex continues working great post-compaction since 5.2.

    I don't know about Gemini but you're just wrong about Codex. And I say this as someone who hates reporting these facts because I'd like people to stop giving OpenAI money.

  • hu3  3 hours ago

    Source? I ask because I use 500k+ context on these on a daily basis.

    Big refactorings guided by automated tests eat context window for breakfast.

  • johnebgd  2 hours ago

    Codex high reasoning has been a legitimately excellent tool for generating feedback on every plan Claude opus thinking has created for me.

karmasimida  1 hour ago

This is true.

When I am using codex, compaction isn’t something I fear, it feels like you save your gaming progress and move on.

For Claude Code compaction feels disastrous, also much longer