---
title: "Changes to Resume fine-tuning"
method: POST
path: "/fine_tuning/jobs/{fine_tuning_job_id}/resume"
---

# Changes to Resume fine-tuning

`POST /fine_tuning/jobs/{fine_tuning_job_id}/resume`

> Every recorded change to this operation, newest first.

## Timeline

Changed in 10 of 397 revisions.

- **2026-10-26** `6f5c52c2ff04`: 6 info
- **2026-10-06** `e2f8d8cbc41f`: 3 info
- **2026-09-29** `13c4908e9024`: 1 breaking, 1 info
- **2026-09-28** `baee5b6ef947`: 5 breaking, 5 warning, 4 info
- **2026-09-25** `9c523485a79e`: 3 info
- **2026-08-05** `ab0c5306e390`: 2 warning, 6 info
- **2026-07-15** `4065aec90c5d`: 2 warning, 6 info
- **2026-07-09** `e0508a503b84`: 2 warning, 6 info
- **2026-05-13** `74cbcf73838f`: 1 info
- **2026-04-10** `7c540cce6eb3`: 1 info

## Changes

- **2026-10-26** `6f5c52c2ff04`: 6 info
  - added the optional property `method/anyOf[#/components/schemas/FineTuneMethod]/reinforcement/grader/oneOf[subschema #4: ScoreModelGrader]/input/items/content/oneOf[subschema #1: Eval content item]/oneOf[subschema #2: Input text]/prompt_cache_breakpoint/ttl` to the response with the `200` status
  - added the optional property `method/anyOf[#/components/schemas/FineTuneMethod]/reinforcement/grader/oneOf[subschema #4: ScoreModelGrader]/input/items/content/oneOf[subschema #2: An array of Input text, Output text, Input image, and Input audio]/items/oneOf[subschema #2: Input text]/prompt_cache_breakpoint/ttl` to the response with the `200` status
  - added the optional property `method/anyOf[#/components/schemas/FineTuneMethod]/reinforcement/grader/oneOf[subschema #5: MultiGrader]/graders/additionalProperties/oneOf[subschema #4: ScoreModelGrader]/input/items/content/oneOf[subschema #1: Eval content item]/oneOf[subschema #2: Input text]/prompt_cache_breakpoint/ttl` to the response with the `200` status
  - added the optional property `method/anyOf[#/components/schemas/FineTuneMethod]/reinforcement/grader/oneOf[subschema #5: MultiGrader]/graders/additionalProperties/oneOf[subschema #4: ScoreModelGrader]/input/items/content/oneOf[subschema #2: An array of Input text, Output text, Input image, and Input audio]/items/oneOf[subschema #2: Input text]/prompt_cache_breakpoint/ttl` to the response with the `200` status
  - added the optional property `method/anyOf[#/components/schemas/FineTuneMethod]/reinforcement/grader/oneOf[subschema #5: MultiGrader]/graders/additionalProperties/oneOf[subschema #5: LabelModelGrader]/input/items/content/oneOf[subschema #1: Eval content item]/oneOf[subschema #2: Input text]/prompt_cache_breakpoint/ttl` to the response with the `200` status
  - added the optional property `method/anyOf[#/components/schemas/FineTuneMethod]/reinforcement/grader/oneOf[subschema #5: MultiGrader]/graders/additionalProperties/oneOf[subschema #5: LabelModelGrader]/input/items/content/oneOf[subschema #2: An array of Input text, Output text, Input image, and Input audio]/items/oneOf[subschema #2: Input text]/prompt_cache_breakpoint/ttl` to the response with the `200` status
- **2026-10-06** `e2f8d8cbc41f`: 3 info
  - added the optional property `error/misalignment/review_target` to the response with the `400` status
  - added the optional property `error/misalignment/review_target` to the response with the `404` status
  - added the optional property `error/misalignment/review_target` to the response with the `429` status
- **2026-09-29** `13c4908e9024`: 1 breaking, 1 info
  - the `method/anyOf[#/components/schemas/FineTuneMethod]/reinforcement/grader/oneOf[subschema #5: MultiGrader]/graders` response's property type changed from no type to `object` for status `200`
  - removed `#/components/schemas/GraderStringCheck, #/components/schemas/GraderTextSimilarity, #/components/schemas/GraderPython, #/components/schemas/GraderScoreModel, #/components/schemas/GraderLabelModel` from the `method/anyOf[#/components/schemas/FineTuneMethod]/reinforcement/grader/oneOf[subschema #5: MultiGrader]/graders` response property `oneOf` list for the response status `200`
- **2026-09-28** `baee5b6ef947`: 5 breaking, 5 warning, 4 info
  - the response property `hyperparameters` became nullable for the status `200`
  - the response property `seed` became nullable for the status `200`
  - the response property `hyperparameters` became optional for the status `200`
  - the `method` response's property type changed from `object` to no type for status `200`
  - removed the required property `method/type` from the response with the `200` status
  - removed the optional property `method/dpo` from the response with the `200` status
  - removed the optional property `method/reinforcement` from the response with the `200` status
  - removed the optional property `method/supervised` from the response with the `200` status
  - added the new `paused` enum value to the `status` response property for the response status `200`
  - added the new `pausing` enum value to the `status` response property for the response status `200`
  - added 'else' subschema to the response body for the status `200`
  - added 'if' subschema to the response body for the status `200`
  - added `#/components/schemas/FineTuneMethod, subschema #2` to the `method` response property `anyOf` list for the response status `200`
  - added `subschema #3` to the `error` response property `anyOf` list for the response status `200`
- **2026-09-25** `9c523485a79e`: 3 info
  - added the non-success response with the status `400`
  - added the non-success response with the status `404`
  - added the non-success response with the status `429`
- **2026-08-05** `ab0c5306e390`: 2 warning, 6 info
  - added the new `max` enum value to the `method/reinforcement/grader/oneOf[subschema #4: ScoreModelGrader]/sampling_params/reasoning_effort/anyOf[subschema #1]/` response property for the response status `200`
  - added the new `max` enum value to the `method/reinforcement/grader/oneOf[subschema #5: MultiGrader]/graders/oneOf[subschema #4: ScoreModelGrader]/sampling_params/reasoning_effort/anyOf[subschema #1]/` response property for the response status `200`
  - added the optional property `method/reinforcement/grader/oneOf[subschema #4: ScoreModelGrader]/input/items/content/oneOf[subschema #1: Eval content item]/oneOf[subschema #2: Input text]/prompt_cache_breakpoint` to the response with the `200` status
  - added the optional property `method/reinforcement/grader/oneOf[subschema #4: ScoreModelGrader]/input/items/content/oneOf[subschema #2: An array of Input text, Output text, Input image, and Input audio]/items/oneOf[subschema #2: Input text]/prompt_cache_breakpoint` to the response with the `200` status
  - added the optional property `method/reinforcement/grader/oneOf[subschema #5: MultiGrader]/graders/oneOf[subschema #4: ScoreModelGrader]/input/items/content/oneOf[subschema #1: Eval content item]/oneOf[subschema #2: Input text]/prompt_cache_breakpoint` to the response with the `200` status
  - added the optional property `method/reinforcement/grader/oneOf[subschema #5: MultiGrader]/graders/oneOf[subschema #4: ScoreModelGrader]/input/items/content/oneOf[subschema #2: An array of Input text, Output text, Input image, and Input audio]/items/oneOf[subschema #2: Input text]/prompt_cache_breakpoint` to the response with the `200` status
  - added the optional property `method/reinforcement/grader/oneOf[subschema #5: MultiGrader]/graders/oneOf[subschema #5: LabelModelGrader]/input/items/content/oneOf[subschema #1: Eval content item]/oneOf[subschema #2: Input text]/prompt_cache_breakpoint` to the response with the `200` status
  - added the optional property `method/reinforcement/grader/oneOf[subschema #5: MultiGrader]/graders/oneOf[subschema #5: LabelModelGrader]/input/items/content/oneOf[subschema #2: An array of Input text, Output text, Input image, and Input audio]/items/oneOf[subschema #2: Input text]/prompt_cache_breakpoint` to the response with the `200` status
- **2026-07-15** `4065aec90c5d`: 2 warning, 6 info
  - added the new `max` enum value to the `method/reinforcement/grader/oneOf[subschema #4: ScoreModelGrader]/sampling_params/reasoning_effort/anyOf[subschema #1]/` response property for the response status `200`
  - added the new `max` enum value to the `method/reinforcement/grader/oneOf[subschema #5: MultiGrader]/graders/oneOf[subschema #4: ScoreModelGrader]/sampling_params/reasoning_effort/anyOf[subschema #1]/` response property for the response status `200`
  - added the optional property `method/reinforcement/grader/oneOf[subschema #4: ScoreModelGrader]/input/items/content/oneOf[subschema #1: Eval content item]/oneOf[subschema #2: Input text]/prompt_cache_breakpoint` to the response with the `200` status
  - added the optional property `method/reinforcement/grader/oneOf[subschema #4: ScoreModelGrader]/input/items/content/oneOf[subschema #2: An array of Input text, Output text, Input image, and Input audio]/items/oneOf[subschema #2: Input text]/prompt_cache_breakpoint` to the response with the `200` status
  - added the optional property `method/reinforcement/grader/oneOf[subschema #5: MultiGrader]/graders/oneOf[subschema #4: ScoreModelGrader]/input/items/content/oneOf[subschema #1: Eval content item]/oneOf[subschema #2: Input text]/prompt_cache_breakpoint` to the response with the `200` status
  - added the optional property `method/reinforcement/grader/oneOf[subschema #5: MultiGrader]/graders/oneOf[subschema #4: ScoreModelGrader]/input/items/content/oneOf[subschema #2: An array of Input text, Output text, Input image, and Input audio]/items/oneOf[subschema #2: Input text]/prompt_cache_breakpoint` to the response with the `200` status
  - added the optional property `method/reinforcement/grader/oneOf[subschema #5: MultiGrader]/graders/oneOf[subschema #5: LabelModelGrader]/input/items/content/oneOf[subschema #1: Eval content item]/oneOf[subschema #2: Input text]/prompt_cache_breakpoint` to the response with the `200` status
  - added the optional property `method/reinforcement/grader/oneOf[subschema #5: MultiGrader]/graders/oneOf[subschema #5: LabelModelGrader]/input/items/content/oneOf[subschema #2: An array of Input text, Output text, Input image, and Input audio]/items/oneOf[subschema #2: Input text]/prompt_cache_breakpoint` to the response with the `200` status
- **2026-07-09** `e0508a503b84`: 2 warning, 6 info
  - added the new `max` enum value to the `method/reinforcement/grader/anyOf[subschema #4: ScoreModelGrader]/sampling_params/reasoning_effort/anyOf[subschema #1]/` response property for the response status `200`
  - added the new `max` enum value to the `method/reinforcement/grader/anyOf[subschema #5: MultiGrader]/graders/anyOf[subschema #4: ScoreModelGrader]/sampling_params/reasoning_effort/anyOf[subschema #1]/` response property for the response status `200`
  - added the optional property `method/reinforcement/grader/anyOf[subschema #4: ScoreModelGrader]/input/items/content/anyOf[subschema #1: Eval content item]/anyOf[subschema #2: Input text]/prompt_cache_breakpoint` to the response with the `200` status
  - added the optional property `method/reinforcement/grader/anyOf[subschema #4: ScoreModelGrader]/input/items/content/anyOf[subschema #2: An array of Input text, Output text, Input image, and Input audio]/items/anyOf[subschema #2: Input text]/prompt_cache_breakpoint` to the response with the `200` status
  - added the optional property `method/reinforcement/grader/anyOf[subschema #5: MultiGrader]/graders/anyOf[subschema #4: ScoreModelGrader]/input/items/content/anyOf[subschema #1: Eval content item]/anyOf[subschema #2: Input text]/prompt_cache_breakpoint` to the response with the `200` status
  - added the optional property `method/reinforcement/grader/anyOf[subschema #5: MultiGrader]/graders/anyOf[subschema #4: ScoreModelGrader]/input/items/content/anyOf[subschema #2: An array of Input text, Output text, Input image, and Input audio]/items/anyOf[subschema #2: Input text]/prompt_cache_breakpoint` to the response with the `200` status
  - added the optional property `method/reinforcement/grader/anyOf[subschema #5: MultiGrader]/graders/anyOf[subschema #5: LabelModelGrader]/input/items/content/anyOf[subschema #1: Eval content item]/anyOf[subschema #2: Input text]/prompt_cache_breakpoint` to the response with the `200` status
  - added the optional property `method/reinforcement/grader/anyOf[subschema #5: MultiGrader]/graders/anyOf[subschema #5: LabelModelGrader]/input/items/content/anyOf[subschema #2: An array of Input text, Output text, Input image, and Input audio]/items/anyOf[subschema #2: Input text]/prompt_cache_breakpoint` to the response with the `200` status
- **2026-05-13** `74cbcf73838f`: 1 info
  - endpoint added
- **2026-04-10** `7c540cce6eb3`: 1 info
  - endpoint added

---

[Operation](https://skmtc.dev/openai/apis/openapi/docs/fine_tuning/jobs/:fine_tuning_job_id/resume/post.md) - [API](https://skmtc.dev/openai/apis/openapi.md) - [Page](https://skmtc.dev/openai/apis/openapi/changes/fine_tuning/jobs/:fine_tuning_job_id/resume/post)