Thing is, Codex 5.3 is a better and more consistent model than anything Anthropic have come out with. It can deal with larger codebases, has compaction that works, and has much less of a tendency to resort to sycophantic hallucination as it runs out of ideas. I also appreciate their approach to third party harnesses like opencode, which is obviously the complete opposite to Anthropic and their scramble to keep their crumbling garden walls upright.

Which makes it even more of a shame that Sam Altman is such a psychopathic jackass.