Implementation:Openai Openai python Fine Tuning Job Cancelled Webhook

Knowledge Sources	Openai_Openai_python OpenAI API Reference
Domains	API_Types, Python
Last Updated	2026-02-15 00:00 GMT

Overview

Concrete type for representing a fine-tuning job cancelled webhook event provided by the openai-python SDK.

Description

FineTuningJobCancelledWebhookEvent is a Pydantic model class that represents the webhook payload sent when a fine-tuning job has been cancelled. It extends BaseModel and includes an event identifier, a Unix timestamp for when the cancellation occurred, a nested Data payload containing the fine-tuning job ID, a literal type field fixed to "fine_tuning.job.cancelled", and an optional object field fixed to "event".

Usage

Import this type when building a webhook handler that needs to process fine-tuning job cancellation events from the OpenAI API. Use it to deserialize incoming webhook payloads and update job tracking records or notify users of the cancellation.

Code Reference

Source Location

• Repository: openai-python
• File: src/openai/types/webhooks/fine_tuning_job_cancelled_webhook_event.py

Signature

class Data(BaseModel):
    """Event data payload."""
    id: str

class FineTuningJobCancelledWebhookEvent(BaseModel):
    """Sent when a fine-tuning job has been cancelled."""
    id: str
    created_at: int
    data: Data
    type: Literal["fine_tuning.job.cancelled"]
    object: Optional[Literal["event"]] = None

Import

from openai.types.webhooks import FineTuningJobCancelledWebhookEvent

I/O Contract

Fields

Name	Type	Required	Description
id	str	Yes	The unique ID of the event.
created_at	int	Yes	Unix timestamp (in seconds) of when the fine-tuning job was cancelled.
data	Data	Yes	Event data payload containing the fine-tuning job ID.
data.id	str	Yes	The unique ID of the fine-tuning job.
type	Literal["fine_tuning.job.cancelled"]	Yes	The type of the event. Always "fine_tuning.job.cancelled".
object	Optional[Literal["event"]]	No	The object of the event. Always "event" when present.

Usage Examples

from openai.types.webhooks import FineTuningJobCancelledWebhookEvent

# Parse a webhook payload
event = FineTuningJobCancelledWebhookEvent.model_validate(payload)
print(f"Fine-tuning job {event.data.id} was cancelled at {event.created_at}")
print(f"Event type: {event.type}")  # "fine_tuning.job.cancelled"

Related Pages

• Environment:Openai_Openai_python_Python_3_9_Plus