Claude always beats Codex in basic things. One example from today: Claude has in-built simulator to build and test iOS apps, while Codex takes a screenshot, finds the window, clicks pixels, blah blah.
Apart from 6.1-sol generally being slower, this adds a huge difference in their speed while testing apps.
I just downgraded from 200$ plan in Codex and divided that into 100$ Codex and 100$ Claude. Maybe in a few days, will switch entirely to 200$ Claude.