AI BriefingChatGPT's Linguistic Bias and Mode Collapse
Key point
The 'mode collapse' phenomenon, where ChatGPT repeats certain phrases, has become controversial among Chinese-language users.
Details
ChatGPT has been observed repeating 'goblins' or certain sentence structures in English, while in Chinese it repeats the unnatural, overly affectionate phrase "I will steadily hold you (我会稳稳地接住你)".
This phenomenon is explained as 'Mode Collapse', where an AI model becomes excessively fixated on certain phrases. This is a side effect that occurs during post-training—the process used to improve a model's response quality—when a particular response format receives excessive positive feedback as a 'good answer'.
The main causes of the Chinese-language case are as follows:
- Translation error: A literal translation of the English "I've got you" produces an unnatural expression that doesn't fit the context.
- Linguistic bias: Models trained primarily on English-centric data tend to follow English sentence structures and logical patterns even when responding in Chinese.
This phenomenon is being consumed as a meme on the Chinese internet, and OpenAI researchers have also released examples suggesting they are aware of it.
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