It's interesting that the cost multiplier for Claude Sonnet 4/4.5/4.6 varies so much (1/6/9), while the API cost is exactly the same for all three models.
Also, the multiplier of 27 for Claude Opus 4.6/4. is way higher than the increase in API price would suggest.
I wonder why that is.
On GitHub copilot you pay per prompt. More powerful models can do a lot more work (consuming a lot more tokens) per prompt. Also, they tend to use more thinking tokens.
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