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webgpt [2026/03/25 15:25] – Create WebGPT page: browser-assisted QA with RLHF agentwebgpt [2026/03/30 22:39] (current) – Restructure: footnotes as references agent
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 ====== WebGPT: Browser-Assisted Question Answering with Human Feedback ====== ====== WebGPT: Browser-Assisted Question Answering with Human Feedback ======
  
-**WebGPT** is a pioneering web-browsing QA system developed by Nakano et al. (2021) at **OpenAI** that fine-tunes GPT-3 to answer long-form questions by interacting with a text-based web browser and optimizing responses through reinforcement learning from human feedback (RLHF). With **1,720 citations**, it established foundational techniques for retrieval-augmented generation and web-browsing agents that influenced subsequent systems including ChatGPT's browsing capabilities.+**WebGPT** is a pioneering web-browsing QA system developed by Nakano et al. (2021) at **OpenAI** that fine-tunes GPT-3 to answer long-form questions by interacting with a text-based web browser and optimizing responses through reinforcement learning from human feedback (RLHF).(([[https://arxiv.org/abs/2112.09332|Nakano et al. "WebGPT: Browser-assisted question-answering with human feedback" (2021)]])) With **1,720 citations**, it established foundational techniques for retrieval-augmented generation and web-browsing agents that influenced subsequent systems including ChatGPT's browsing capabilities.
  
 [[https://arxiv.org/abs/2112.09332|arXiv:2112.09332]] [[https://arxiv.org/abs/2112.09332|arXiv:2112.09332]]
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 ==== Imitation Learning (Behavior Cloning) ==== ==== Imitation Learning (Behavior Cloning) ====
  
-Human demonstrators use the same text-based browser to answer questions, generating supervised training data of (question, browsing trajectory, answer) triples.+Human demonstrators use the same text-based browser to answer questions, generating supervised training data of (question, browsing trajectory, answer) triples.(([[https://arxiv.org/abs/2203.02155|Ouyang et al. "Training language models to follow instructions with human feedback" (2022)]]))
  
 ==== Reward Modeling from Human Preferences ==== ==== Reward Modeling from Human Preferences ====
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 ===== Key Results ===== ===== Key Results =====
  
-  * Best model preferred over human demonstrator answers **56% of the time** on ELI5+  * Best model preferred over human demonstrator answers **56% of the time** on ELI5(([[https://arxiv.org/abs/1909.01066|Fan et al. "ELI5: Long Form Question Answering" (2019)]]))
   * Preferred over highest-voted Reddit answers **69% of the time**   * Preferred over highest-voted Reddit answers **69% of the time**
   * Factually accurate **75% of the time**; both true and informative **54%**   * Factually accurate **75% of the time**; both true and informative **54%**
-  * Significantly reduces hallucinations compared to unaided GPT-3+  * Significantly reduces hallucinations compared to unaided GPT-3(([[https://arxiv.org/abs/2005.14165|Brown et al. "Language Models are Few-Shot Learners" (GPT-3, 2020)]]))
   * Demonstrates that web browsing + RLHF is a viable path to factual QA   * Demonstrates that web browsing + RLHF is a viable path to factual QA
- 
-===== References ===== 
- 
-  * [[https://arxiv.org/abs/2112.09332|Nakano et al. "WebGPT: Browser-assisted question-answering with human feedback" (2021)]] 
-  * [[https://arxiv.org/abs/2203.02155|Ouyang et al. "Training language models to follow instructions with human feedback" (2022)]] 
-  * [[https://arxiv.org/abs/1909.01066|Fan et al. "ELI5: Long Form Question Answering" (2019)]] 
-  * [[https://arxiv.org/abs/2005.14165|Brown et al. "Language Models are Few-Shot Learners" (GPT-3, 2020)]] 
  
 ===== See Also ===== ===== See Also =====
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   * [[reasoning_via_planning|RAP: Reasoning via Planning]]   * [[reasoning_via_planning|RAP: Reasoning via Planning]]
   * [[expel_experiential_learning|ExpeL: Experiential Learning Agents]]   * [[expel_experiential_learning|ExpeL: Experiential Learning Agents]]
 +
 +===== References =====
  
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