It can be difficult to detect AI-generated text, especially with advanced language models such as GPT-3. However, there are a few signs that can indicate that a piece of text was generated by AI:
1. Lack of coherence: AI-generated text may lack coherence and logical flow, with abrupt changes in topic or context.
2. Unusual word choices or phrasing: AI may use uncommon or awkward word choices and phrasing that sound unnatural or out of place.
3. Repetition: AI may repeat certain phrases or ideas throughout the text.
4. Lack of personal voice: AI-generated text may lack a personal voice or tone, and may sound generic or impersonal.
5. Inconsistencies: AI may produce inconsistent or contradictory statements within the text.
6. Unusual sources or references: AI may cite sources or references that seem out of place or unrelated to the topic at hand.
Overall, while it may be challenging to definitively detect AI-generated text, a combination of these factors can help in identifying suspicious or artificial text.