Read the following text.

Select the option that correctly identifies one of the differences between ChatGPT and InstructGPT. 

1. ChatGPT interacts in a conversational way while InstructGPT follows an instruction in a prompt 
2. ChatGPT uses reinforcement learning while InstructGPT uses supervised learning 
3. ChatGPT is fine-tuned from GPT-3.5 while InstructGPT is fine-tuned from GPT-3 
4. All of the above

Answer as written by the student:

The option that correctly identifies one of the differences between ChatGPT and InstructGPT is A. ChatGPT interacts in a conversational way while InstructGPT follows an instruction in a prompt.

Step-by-step explanation of the answer:

To answer this question, we need to read the passage carefully and look for the information that relates to the differences between ChatGPT and InstructGPT. 📖

• The passage mentions one of the differences between ChatGPT and InstructGPT in paragraph 2, where it says: “ChatGPT is a sibling model to InstructGPT, which is trained to follow an instruction in a prompt and provide a detailed response. ChatGPT is trained to interact in a conversational way, using dialogue data collected from human AI trainers.” 📝
• Therefore, we can conclude that option A is the correct answer, as it matches the information given in the passage. ✅
• Option B is incorrect, as it is not a difference between ChatGPT and InstructGPT, but rather a similarity. Both models use reinforcement learning from human feedback (RLHF), which enables them to learn from the preferences and ratings of human users. ❌
• Option C is incorrect, as it is not a difference between ChatGPT and InstructGPT, but rather a speculation. The passage does not mention which model InstructGPT is fine-tuned from, so we cannot assume that it is fine-tuned from GPT-3. ❌
• Option D is incorrect, as it is not a combination of correct answers, but rather a combination of incorrect answers. Only option A is correct, while options B and C are incorrect. ❌