OpenAI Finally Explains Why ChatGPT Wouldn’t Stop Talking About Goblins

In brief

• OpenAI’s “Nerdy” personality rewarded goblin metaphors, spreading the quirk across all GPT models through reinforcement learning.
• Goblin mentions in GPT-5.4’s Nerdy mode surged 3,881% compared to GPT-5.2, prompting an internal investigation and emergency system prompt patch.
• The…