Allow me to fix your post, "You can now run multiple Claude sessions side by side for around 5 minutes before we lock you out and demand another 200USD off you".
I can burn through the 5h limit in about 8 minutes. That's absurd in anyone's book.
I can absolutely hammer Codex for hours (same tasks) and it doesn't run out. Both on the same plan.
How on Earth is anyone getting work done with Claude?
GPT5.4 is a more advanced model than Opus 4.6 right now anyway - especially since they nerfed it for the Mythos/4.7 release.