Sending a Specific Prefix to Claude Opus Triggers User Completion Instead of Response
Michael_Moroz_ · x · 2026-07-30
A user discovered an interesting model behavior: when sending a prompt containing the phrase "see the below —" to Claude 3 Opus, the model appears to abandon its normal conversational response mode and instead generates user completion text.
This anomaly, acting like an auto-complete, showcases how LLMs can experience prediction shifts when faced with specific formatted prefixes.
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