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A pelican-riding-a-bicycle benchmark page of 18 images across six reasoning efforts and three GPT-5.6 models shows costs ranging from 0.71 cents (Luna, no reasoning) to 48.55 cents (Sol, max reasoning).
Simon Willison's pelican benchmark page tracks token costs across GPT-5.6 model sizes and reasoning efforts, ranging nearly 70x from cheapest to most expensive.
transcript
Simon Willison: Here's a full page with 18 different pelicans - for reasoning efforts none, low, medium, high, xhigh, and max across the three different models. It also lists their token and calculated costs - the least expensive was gpt-5.6-luna at effort none for 0.71 cents, the most expensive was gpt-5.6-sol at max reasoning level for 48.55 cents.
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