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For some reason everything is 2x (2x cost, 2x avg response time, 2x reasoning and output tokens)...

Double-checking my test harness, but it's the first model that does this, so I doubt the issue is on my side...

EDIT: Harness seems correct, for straight coding tasks they perform identical: https://i.snipboard.io/5xbpzY.jpg

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Wait, doesn’t the blog post say the price is the same as 4.7?

> Claude Opus 4.8 is available everywhere today. Pricing for regular usage is unchanged from Opus 4.7: $5 per million input tokens and $25 per million output tokens. Pricing for fast mode is $10 per million input tokens and $50 per million output tokens.

Where do you see the 2x cost?

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The total cost of running my benchmarks, was 1.6x higher compared to Opus 4.7, mostly because of 2x output tokens:

https://i.snipboard.io/vrdwTa.jpg

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ah ok, thanks for clarifying!
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If it spends 2x tokens to achieve the same result, that's effective 2x cost in a manner of speaking
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Releasing a new model is the new way to Jack up the price hehe.
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That's exactly right.
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