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AI & ML · Concept

Backpropagation

In the supplied OpenAI documentation, backpropagation appears as the training part of a reinforcement fine-tuning step. The page documents its timing metric, not the algorithm itself.

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Syntax

event.data.timing.step.training

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  • reinforcement fine-tuning
  • training
  • sampling
  • eval
  • full_iteration
  • graders

Source: OpenAI API docs — full documentation. Checked 2026-11-03.