In April 2025, OpenAI's GPT-4o update led to sycophantic behavior in ChatGPT due to a prompt deployment issue. This incident highlighted a lack of MLOps discipline, such as proper prompt registration and deployment strategies like shadow and canary releases. The incident underscores the importance of treating prompts as

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GPT-4o Sycophancy IncidentMachine Learning Operations (MLOps) for AI SystemsReferencesAuthor

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