Why does Sonnet 4.5 have 2 requests per chat?

Where does the bug appear (feature/product)?

Cursor IDE

Describe the Bug

It seems a bug, the other model is not!
Right?

Steps to Reproduce

Every chat using Sonnet 4.5!

Expected Behavior

One chat → one request

Operating System

MacOS

Version Information

Every version

Does this stop you from using Cursor

Yes - Cursor is unusable

Hey, thanks for the report. This isn’t a bug. Sonnet 4.5 (especially the thinking variant) is counted as 2 requests. Reasoning models use extended thinking and generate extra hidden reasoning tokens, so they cost more compute and are billed with a multiplier.

Same situation with Opus 4.5. It’s also 2x requests.

Can you check the dashboard at cursor.com/dashboard?tab=usage ? You should see token details and the actual cost there. If anything looks off in the usage, send a screenshot and we’ll take a look.

Don’t you think that’s strange though to charge the same number of requests for Opus and Sonnet? In what world would anybody choose Sonnet over opus

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