OpenAI.finetunes_create

You're seeing just the function finetunes_create, go back to OpenAI module for more information.
Link to this function

finetunes_create(params)

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Creates a job that fine-tunes a specified model from a given dataset.

Example request

OpenAI.finetunes_create(training_file: "file-123", model: "curie", validation_file: "file-456")

Example response

See: https://platform.openai.com/docs/api-reference/fine-tunes/create