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Cursor IDE users report unexpected 'Fast' AI model usage

Users of the Cursor IDE are reporting discrepancies between their configured AI model settings and the actual usage reported by the platform. Specifically, users who have disabled the 'Fast' mode for Composer 2.5 are still seeing 'Fast' usage in their billing and usage reports. This issue persists even when the sub-agents are confirmed to be running on the standard 2.5 model, leading to confusion about the underlying cause. AI

IMPACT Potential confusion for users regarding AI model billing and performance in the Cursor IDE.

RANK_REASON User reports of unexpected behavior in a specific software product.

Read on r/cursor →

AI-generated summary · Google Gemini · from 2 sources. How we write summaries →

Cursor IDE users report unexpected 'Fast' AI model usage

COVERAGE [2]

  1. r/cursor TIER_2 English(EN) · /u/Kaskote ·

    Cursor still showing Composer 2.5 Fast usage even after disabling Fast

    <!-- SC_OFF --><div class="md"><p>I'm using Cursor Pro exclusively for Composer 2.5. To maximize my usage, I obviously disabled Fast. I also set 2.5 non-Fast under Settings &gt; Agents.</p> <p>Still, I keep seeing Fast usage in the Usage and Billing sections on Cursor's website. …

  2. r/cursor TIER_2 English(EN) · /u/OutrageousTrue ·

    Why is the cursor using Composer 2.5 fast when the chosen model is GPT 5.5?

    <table> <tr><td> <a href="https://www.reddit.com/r/cursor/comments/1uemf5x/why_is_the_cursor_using_composer_25_fast_when_the/"> <img alt="Why is the cursor using Composer 2.5 fast when the chosen model is GPT 5.5?" src="https://preview.redd.it/zu1f6pkz1a9h1.png?width=140&amp;heig…