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Cursor IDE's AI agents may use unexpected models, users report

The Cursor IDE's agent feature may unexpectedly use different AI models for subagents than the main agent, a behavior that has been reported and is being addressed. Users have encountered instances where Grok 4.5 High spawned a subagent using Claude Sonnet 5 High in debug mode. Workarounds include disabling expensive models in the picker or explicitly requesting cheaper models for subagents in prompts. AI

IMPACT Potential for unexpected costs or performance variations due to subagent model selection in the Cursor IDE.

RANK_REASON User-reported behavior in a specific software tool.

Read on r/cursor →

AI-generated summary · Google Gemini · from 1 sources. How we write summaries →

Cursor IDE's AI agents may use unexpected models, users report

COVERAGE [1]

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

    PSA: Main agent in Multitask or Debug mode may spin up subagents with different models

    <!-- SC_OFF --><div class="md"><p>I recently submitted a bug report about how Grok 4.5 High decided to spawn a subagent using Claude Sonnet 5 High in debug mode. Apparently, this is known &quot;behaviro&quot; and it is on their radar. Also, the document doesn't reflect this eithe…