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GPT-5.5 xhigh remains cheaper than Sonnet despite price increase
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Despite the price increase, GPT-5.5 (xhigh) still came out cheaper than Sonnet on the Artificial Analysis Index. It's more expensive than 5.4, but barely. Also check those 5.5 (medium) numbers, they're closer to a mini model with 5.4-xhigh-level performance
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