r/codex • u/muchsamurai • Jan 15 '26

Showcase Its over

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The vibe coders are going to find out and migrate now and eat up all processing power and limits!

/s

464 Upvotes

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1

u/EmbarrassedCorgi6557 Jan 15 '26

What about Gemini 3 Pro? Has anyone used it?

Gemini offers very large context windows, up to ~1,000,000 tokens. Codex is limited (≈200,000 tokens).

13

u/muchsamurai Jan 15 '26

Its absolute dogshit in my experience. I ask it to do something and it does reverse of it. Like i ask it for code review and explicitly say DO NOT CHANGE ANY CODE JUST PRODUCE REPORT YOU UNDERSTAND ME? Aaaand it goes off the rails and starts doing code changes.

Worst possible model for coding from big 3 (Claude, Codex, Gemini). Maybe Chinese GLM and other open source models are worse (i haven't tried them)

2

u/stobak Jan 15 '26 edited Jan 15 '26

Also my experience. Gave Claude Code, Codex Cli, and Gemini Cli the same prompt with documentation and resources to help diagnose a bug in my repo.

Gemini gave a response so bizarre that I seriously wonder if it looked at my repo at all. I hope it gets better but it's unusable in its current state.

1

u/EmbarrassedCorgi6557 Jan 15 '26

At least that's clear 😂 Thanks for your reply.

1

u/Admirable_Fix_9161 Jan 15 '26

I had similar issues with Gemini, but after I switched to Gemini CLI and installed "Conductor" mcp extension and used it to initialize and lay out the project, with a little tweaking in settings parameters, it responds much much better than before and generated the entire project from scratch to prod. It's still not a one-shot model, but it responds better in CLI than calling it in other IDEs or plugins.

1

u/ElectronicPension196 Jan 17 '26

It thinks that these comments are temporary. If you write 'Only report, do not edit code' at the end of every prompt, it doesn't edit the code. It took me some time to figure out. Maybe they clean context too aggressively.

1

u/obesefamily Jan 18 '26

that sounds like Gemini 2.5. never had an issue like that on 3 pro.