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latestOpenAPI 3.1.0MITraw.githubusercontent.com2026-08-202881,4212.8 MB

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Fine-tuning

Get info about a fine-tuning job. [Learn more about fine-tuning](/docs/guides/model-optimization)

get/fine_tuning/jobs/{fine_tuning_job_id}

Path parameters

fine_tuning_job_idstring required
Example:ft-AF1WoRqd3aJAHsqc9NY7iL8F

The ID of the fine-tuning job.

Response

OK

idstring required

The object identifier, which can be referenced in the API endpoints.

created_atinteger required

The Unix timestamp (in seconds) for when the fine-tuning job was created.

fine_tuned_modelstring nullable required

The name of the fine-tuned model that is being created. The value will be null if the fine-tuning job is still running.

finished_atinteger nullable required

The Unix timestamp (in seconds) for when the fine-tuning job was finished. The value will be null if the fine-tuning job is still running.

modelstring required

The base model that is being fine-tuned.

object'fine_tuning.job' required

The object type, which is always "fine_tuning.job".

organization_idstring required

The organization that owns the fine-tuning job.

result_filesstring[] required

The compiled results file ID(s) for the fine-tuning job. You can retrieve the results with the Files API.

status'validating_files' | 'queued' | 'running' | 'succeeded' | 'failed' | 'cancelled' required

The current status of the fine-tuning job, which can be either validating_files, queued, running, succeeded, failed, or cancelled.

trained_tokensinteger nullable required

The total number of billable tokens processed by this fine-tuning job. The value will be null if the fine-tuning job is still running.

training_filestring required

The file ID used for training. You can retrieve the training data with the Files API.

validation_filestring nullable required

The file ID used for validation. You can retrieve the validation results with the Files API.

seedinteger required

The seed used for the fine-tuning job.

estimated_finishinteger nullable

The Unix timestamp (in seconds) for when the fine-tuning job is estimated to finish. The value will be null if the fine-tuning job is not running.

metadataMetadata nullable

Set of 16 key-value pairs that can be attached to an object. This can be useful for storing additional information about the object in a structured format, and querying for objects via API or the dashboard.

Keys are strings with a maximum length of 64 characters. Values are strings with a maximum length of 512 characters.