AINeutralarXiv – CS AI · Mar 267/10
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The Price Reversal Phenomenon: When Cheaper Reasoning Models End Up Costing More
A systematic study of 8 frontier reasoning language models reveals that cheaper API pricing often leads to higher actual costs due to variable 'thinking token' consumption. The research found that in 21.8% of model comparisons, the cheaper-listed model actually costs more to operate, with cost differences reaching up to 28x.
🧠 GPT-5🧠 Gemini