OpenAI's Ultrafast charges your included ChatGPT usage at 8x and your credits at 6x

Running ChatGPT's Ultrafast mode costs a subscriber more out of the usage their plan includes than out of the credits they have paid for. OpenAI's pricing page for Codex and ChatGPT sets both multipliers against Standard mode for the same model: Ultrafast draws on included subscription usage at 8x…

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