OpenAI published a post-mortem on Decrypt about why ChatGPT wouldn’t stop talking about goblins.
According to Decrypt, the company ended up writing a “never mention goblins” instruction into ChatGPT’s production code. The reason, per the post-mortem described by Decrypt, was that the system kept circling back to the same topic.
Decrypt frames the incident as a production-control measure rather than a creative quirk. OpenAI’s fix, as described in the article, was explicit. It told the model not to bring up goblins.
The post-mortem details are summarized at a high level in Decrypt’s report. For now, the main takeaway is simple. When a model fixates on a theme in production, teams may resort to hard rules that block the behavior directly.