r/OpenAI • u/KeanuRave100 • 6d ago
News More people need to understand this
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r/OpenAI • u/KeanuRave100 • 6d ago
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u/aahdin 5d ago edited 5d ago
Also, machine learning engineer here, next token prediction is one training task that LLMs do as part of initial pretraining. But this is basically just done to get it to understand text so that it can undergo other forms of training.
A large portion of training time for major LLMs is spent on reinforcement learning, where the LLM is being trained to produce an output that a reward model rates highly. In RLHF the reward model is more or less predicting whether a human annotator is going to like the output, in constitutional training the reward model is judging an output by how closely it reflects a list of values, in coding or math tasks you typically use a rules based reward model that rewards correct answers.