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Cursor IDE users frustrated by Fable 5 auto-downgrade to Opus 4.8

Users of the Cursor IDE are reporting that the Fable 5 model automatically switches to Opus 4.8 when a safety filter is triggered. This automatic model downgrade occurs mid-conversation, which is frustrating for users who specifically chose Fable 5 for its capabilities and want to be alerted to safety filter activations rather than having the model silently switch. AI

IMPACT This behavior in the Cursor IDE may impact user trust and workflow if safety filters cause unexpected model downgrades.

RANK_REASON User report about a feature/behavior of an existing product.

Read on r/cursor →

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

Cursor IDE users frustrated by Fable 5 auto-downgrade to Opus 4.8

COVERAGE [1]

  1. r/cursor TIER_2 English(EN) · /u/This-Risk-3737 ·

    Fable 5 hit a safety filter, and the conversation was automatically switched to Opus 4.8.

    <!-- SC_OFF --><div class="md"><p>This is really getting on my nerves.</p> <blockquote> <p>Fable 5 runs with tight security guardrails. When a request trips one of those guardrails, Cursor routes it to Claude Opus automatically so your work continues without an error. You don't n…