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144144## Impact on prompt caching
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146Enabling or disabling the advisor mid-session does not invalidate your main model's [prompt cache](/docs/en/prompt-caching). Unlike [changing model or effort level](/docs/en/prompt-caching#actions-that-invalidate-the-cache), toggling `/advisor` keeps the cached prefix intact, and the advisor's returned guidance is cached as part of the transcript on later turns.
146Enabling or disabling the advisor mid-session does not invalidate your main model's [prompt cache](/docs/en/prompt-caching). Unlike [switching models](/docs/en/prompt-caching#switching-models), toggling `/advisor` keeps the cached prefix intact, and the advisor's returned guidance is cached as part of the transcript on later turns.
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148148The advisor model's own read of the conversation is not cached. Each advisor call processes the full transcript anew, with no reuse between calls.
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