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OpenAI's conversational assistant, launched in November 2022, which brought instruction-tuned large language models to a mass audience.
ChatGPT is a chat interface to OpenAI's GPT models, fine-tuned to follow instructions and hold a dialogue. Its training builds on the InstructGPT method of Ouyang et al. (2022), which used reinforcement learning from human feedback to make a base model helpful and safe in conversation.
Its late-2022 launch is widely credited with starting the mainstream generative-AI wave. In MultipleChat, ChatGPT is one of the models you can query and compare side by side.
Primary, peer-reviewed and archival sources for this definition.
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Core conceptUse several frontier models together for stronger answers and fewer blind spots.
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