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Let’s settle this once and for all - what’s better?

Claude is unbeatable, but GPT-5.2 is second without any doubt

Same same but different? Haven’t tested them but I guess it will be similar to previous models. Both are very capable, both are very expensive, both have their own quirks, strengths and weaknesses. I also think you should give Devstral 2 127B a chance.

Codex!
But opus 4.6 for plans 🤏

I’ve been very happy with Opus and haven’t really tested Codex 5.3 at all lol

Both have given me similar results with both still needing me to check their work as it doesn’t work but to be fair the work I have given them is mostly manipulating SVGs to make chart like pages. They both got very close and I was able to tweak it to work properly.
For anyone who knows does GPT have a planning mode like claude?