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GPT-4o mini is 33x cheaper than GPT-4o, or 66x cheaper in batch mode. But the article says:

> I also tried GPT-4o mini but yielded significantly worse results so I just continued my experiments with GPT-4o.

Would be interesting to compare with the other inexpensive top tier models, Claude 3 Haiku and Gemini 1.5 Flash.

author here: I'm working on a follow-up post where I benchmark pre-processing techniques (to reduce the token count). Turns out, removing all HTML works well (much cheaper and doesn't impact accuracy). So far, I've only tried gpt-4o and the mini version, but trying other models would be interesting!

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