Manage costs effectively changedcosts
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342342These background processes consume a small amount of tokens (typically under \$0.04 per session) even without active interaction.
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344When prompt suggestions are on, Claude Code also sends a short request to the model your session is using after Claude responds, to [suggest your next prompt](/docs/en/interactive-mode#prompt-suggestions). That request reuses the conversation's prompt cache, so it is mostly cache reads plus a few output tokens. Claude Code [skips it while your account is close to or at its usage limit](/docs/en/interactive-mode#when-claude-code-skips-suggestions). To stop these requests, [turn prompt suggestions off](/docs/en/interactive-mode#turn-prompt-suggestions-off).
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344346## Why usage climbs in a long session
345347
346348A session that has been open for hours can use far more of your plan limits than your activity suggests, usually for one of these reasons:
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