Comment by virgildotcodes
14 hours ago
I just cancelled my OpenAI $200 sub yesterday because of all this, but sadly I can't agree.
Codex 5.3 Xhigh > Opus 4.6 in my work to this point.
Hoping for Opus 4.7 or whatever comes next to rectify this as I'm a bit annoyed over having to drop to a lower quality model.
Weirdly enough, I agree with both sides. Opus beats every version of GPT 5 as a chat interface, hands down. ChatGPT, at this point, is mostly me correcting its output style, cadence, behavior, etc, and consistently remaining dissatisfied, meanwhile Opus one-shots things I didn’t even think it could (Typst code). All that said, I do my programming in OpenAI’s Codex app for Mac. It has completely dominated Claude Code for me. I’ll only ever use Opus to check 5.3-Codex’s work. Very weird world we’re living in. I hope it gets even weirder once Deepseek does whatever they’ve been cooking.
What where you using it for? claude is really good at agentic stuff, Pure coding, I can see codex being better, but for the entire workflow, I'm not sure
I use Codex purely for coding, and that's 90% of my use case for AI in general (10% using ChatGPT web for misc stuff). I pop out to Opus in Claude Code regularly to try to stay up on their relative performance, but so far the primary value I've been able to derive from CC is as a second set of eyes for code review / poking holes in plans. For primary planning / debugging / implementation Codex outclasses it atm sadly.
For coding, I agree, Codex-5.3 is the best out there.
But for the chat, I feel like ChatGPT got worse and worse.
I use Opus 4.6 Fast-mode. It produces significantly better results in my work than any Codex 5.3 tier.
Me too. It's great that my employer pays for it and there's basically no budget, because this configuration is 10x more expensive than the regular default Sonnet.
Rapid iteration would possibly make up for the drop in quality, but I can't afford to use fast mode as I'm a contractor and pay for my own AI usage :(