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Wrote this a while back. https://martinalderson.com/posts/no-it-doesnt-cost-anthropic...

OpenRouter is the best guide to real costs.

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agreed, this doesnt even account for prompt caching or the fact that anthropic has substantial proprietary efficiencies on their inference stack specific to their models and scale.
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Thanks, that’s exactly what I was looking for!

And much more informative than the speculation and guessing in the article.

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