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Comment on From GPT-4 to GPT-5: Measuring progress through MedHELM [pdf]parent

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Afaik, there is currently no "GPT-5 Pro". Did you mean o3-pro or o1-pro (via API)?

Currently, GPT-5 sits at $10/1M output tokens, o3-pro at $80, and o1-pro at a whopping $600: https://platform.openai.com/docs/pricing

Of course this is not indicative of actual performance or quality per $ spent, but according to my own testing, their performance does seem to scale in line with their cost.

GPT-5 Pro is only available on ChatGPT with a ChatGPT Pro subscription.

Supposedly it fires off multiple parallel thinking chains and then essentially debates with itself to net a final answer.

O5-pro is available through the ChatGPT UI with a “Pro” plan. I understand that like o3 pro it is a high compute large context invocation of underlying models.

Thanks, I was not aware! I thought they offered all their models via their API.

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