Comment by AmazingTurtle

I just tried that in Codex CLI. With /fast mode enabled. Observations:

1. Fast mode ain't that fast

2. Large context * Fast * Higher Model Base Price = 8x increase over gpt-5.3-codex

3. I burnt 33% of my 5h limit (ChatGPT Business Subscription) with a prompt that took 2 minutes to complete.