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java/resources/files/index.md 2026-07-07 08:02 UTC to 2026-07-09 20:58 UTC

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Files

List files

FileListPage files().list(FileListParamsparams = FileListParams.none(), RequestOptionsrequestOptions = RequestOptions.none())

get /files

List files

Parameters

  • FileListParams params

    • Optional<String> after

      A cursor for use in pagination. after is an object ID that defines your place in the list. For instance, if you make a list request and receive 100 objects, ending with obj_foo, your subsequent call can include after=obj_foo in order to fetch the next page of the list.

    • Optional<Long> limit

      A limit on the number of objects to be returned. Limit can range between 1 and 10,000, and the default is 10,000.

    • Optional<Order> order

      Sort order by the created_at timestamp of the objects. asc for ascending order and desc for descending order.

      • ASC("asc")

      • DESC("desc")

    • Optional<String> purpose

      Only return files with the given purpose.

Returns

  • class FileObject:

    The File object represents a document that has been uploaded to OpenAI.

    • String id

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

    • long bytes

      The size of the file, in bytes.

    • long createdAt

      The Unix timestamp (in seconds) for when the file was created.

    • String filename

      The name of the file.

    • JsonValue; object_ "file"constant

      The object type, which is always file.

      • FILE("file")
    • Purpose purpose

      The intended purpose of the file. Supported values are assistants, assistants_output, batch, batch_output, fine-tune, fine-tune-results, vision, and user_data.

      • ASSISTANTS("assistants")

      • ASSISTANTS_OUTPUT("assistants_output")

      • BATCH("batch")

      • BATCH_OUTPUT("batch_output")

      • FINE_TUNE("fine-tune")

      • FINE_TUNE_RESULTS("fine-tune-results")

      • VISION("vision")

      • USER_DATA("user_data")

    • Status status

      Deprecated. The current status of the file, which can be either uploaded, processed, or error.

      • UPLOADED("uploaded")

      • PROCESSED("processed")

      • ERROR("error")

    • Optional<Long> expiresAt

      The Unix timestamp (in seconds) for when the file will expire.

    • Optional<String> statusDetails

      Deprecated. For details on why a fine-tuning training file failed validation, see the error field on fine_tuning.job.

Example

package com.openai.example;

import com.openai.client.OpenAIClient;
import com.openai.client.okhttp.OpenAIOkHttpClient;
import com.openai.models.files.FileListPage;
import com.openai.models.files.FileListParams;

public final class Main {
    private Main() {}

    public static void main(String[] args) {
        OpenAIClient client = OpenAIOkHttpClient.fromEnv();

        FileListPage page = client.files().list();
    }
}

Response

{
  "data": [
    {
      "id": "id",
      "bytes": 0,
      "created_at": 0,
      "filename": "filename",
      "object": "file",
      "purpose": "assistants",
      "status": "uploaded",
      "expires_at": 0,
      "status_details": "status_details"
    }
  ],
  "first_id": "file-abc123",
  "has_more": false,
  "last_id": "file-abc456",
  "object": "list"
}

Upload file

FileObject files().create(FileCreateParamsparams, RequestOptionsrequestOptions = RequestOptions.none())

post /files

Upload file

Parameters

  • FileCreateParams params

    • String file

      The File object (not file name) to be uploaded.

    • JsonValue purpose

    • Optional<ExpiresAfter> expiresAfter

      The expiration policy for a file. By default, files with purpose=batch expire after 30 days and all other files are persisted until they are manually deleted.

      • JsonValue; anchor "created_at"constant

        Anchor timestamp after which the expiration policy applies. Supported anchors: created_at.

        • CREATED_AT("created_at")
      • long seconds

        The number of seconds after the anchor time that the file will expire. Must be between 3600 (1 hour) and 2592000 (30 days).

Returns

  • class FileObject:

    The File object represents a document that has been uploaded to OpenAI.

    • String id

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

    • long bytes

      The size of the file, in bytes.

    • long createdAt

      The Unix timestamp (in seconds) for when the file was created.

    • String filename

      The name of the file.

    • JsonValue; object_ "file"constant

      The object type, which is always file.

      • FILE("file")
    • Purpose purpose

      The intended purpose of the file. Supported values are assistants, assistants_output, batch, batch_output, fine-tune, fine-tune-results, vision, and user_data.

      • ASSISTANTS("assistants")

      • ASSISTANTS_OUTPUT("assistants_output")

      • BATCH("batch")

      • BATCH_OUTPUT("batch_output")

      • FINE_TUNE("fine-tune")

      • FINE_TUNE_RESULTS("fine-tune-results")

      • VISION("vision")

      • USER_DATA("user_data")

    • Status status

      Deprecated. The current status of the file, which can be either uploaded, processed, or error.

      • UPLOADED("uploaded")

      • PROCESSED("processed")

      • ERROR("error")

    • Optional<Long> expiresAt

      The Unix timestamp (in seconds) for when the file will expire.

    • Optional<String> statusDetails

      Deprecated. For details on why a fine-tuning training file failed validation, see the error field on fine_tuning.job.

Example

package com.openai.example;

import com.openai.client.OpenAIClient;
import com.openai.client.okhttp.OpenAIOkHttpClient;
import com.openai.core.JsonValue;
import com.openai.models.files.FileCreateParams;
import com.openai.models.files.FileObject;
import java.io.ByteArrayInputStream;
import java.util.Map;

public final class Main {
    private Main() {}

    public static void main(String[] args) {
        OpenAIClient client = OpenAIOkHttpClient.fromEnv();

        FileCreateParams params = FileCreateParams.builder()
            .file(new ByteArrayInputStream("Example data".getBytes()))
            .purpose(JsonValue.from(<String, Object>Map.of()))
            .build();
        FileObject fileObject = client.files().create(params);
    }
}

Response

{
  "id": "id",
  "bytes": 0,
  "created_at": 0,
  "filename": "filename",
  "object": "file",
  "purpose": "assistants",
  "status": "uploaded",
  "expires_at": 0,
  "status_details": "status_details"
}

Delete file

FileDeleted files().delete(FileDeleteParamsparams = FileDeleteParams.none(), RequestOptionsrequestOptions = RequestOptions.none())

delete /files/{file_id}

Delete file

Parameters

  • FileDeleteParams params

    • Optional<String> fileId

Returns

  • class FileDeleted:

    • String id

    • boolean deleted

    • JsonValue; object_ "file"constant

      • FILE("file")

Example

package com.openai.example;

import com.openai.client.OpenAIClient;
import com.openai.client.okhttp.OpenAIOkHttpClient;
import com.openai.models.files.FileDeleteParams;
import com.openai.models.files.FileDeleted;

public final class Main {
    private Main() {}

    public static void main(String[] args) {
        OpenAIClient client = OpenAIOkHttpClient.fromEnv();

        FileDeleted fileDeleted = client.files().delete("file_id");
    }
}

Response

{
  "id": "id",
  "deleted": true,
  "object": "file"
}

Retrieve file

FileObject files().retrieve(FileRetrieveParamsparams = FileRetrieveParams.none(), RequestOptionsrequestOptions = RequestOptions.none())

get /files/{file_id}

Retrieve file

Parameters

  • FileRetrieveParams params

    • Optional<String> fileId

Returns

  • class FileObject:

    The File object represents a document that has been uploaded to OpenAI.

    • String id

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

    • long bytes

      The size of the file, in bytes.

    • long createdAt

      The Unix timestamp (in seconds) for when the file was created.

    • String filename

      The name of the file.

    • JsonValue; object_ "file"constant

      The object type, which is always file.

      • FILE("file")
    • Purpose purpose

      The intended purpose of the file. Supported values are assistants, assistants_output, batch, batch_output, fine-tune, fine-tune-results, vision, and user_data.

      • ASSISTANTS("assistants")

      • ASSISTANTS_OUTPUT("assistants_output")

      • BATCH("batch")

      • BATCH_OUTPUT("batch_output")

      • FINE_TUNE("fine-tune")

      • FINE_TUNE_RESULTS("fine-tune-results")

      • VISION("vision")

      • USER_DATA("user_data")

    • Status status

      Deprecated. The current status of the file, which can be either uploaded, processed, or error.

      • UPLOADED("uploaded")

      • PROCESSED("processed")

      • ERROR("error")

    • Optional<Long> expiresAt

      The Unix timestamp (in seconds) for when the file will expire.

    • Optional<String> statusDetails

      Deprecated. For details on why a fine-tuning training file failed validation, see the error field on fine_tuning.job.

Example

package com.openai.example;

import com.openai.client.OpenAIClient;
import com.openai.client.okhttp.OpenAIOkHttpClient;
import com.openai.models.files.FileObject;
import com.openai.models.files.FileRetrieveParams;

public final class Main {
    private Main() {}

    public static void main(String[] args) {
        OpenAIClient client = OpenAIOkHttpClient.fromEnv();

        FileObject fileObject = client.files().retrieve("file_id");
    }
}

Response

{
  "id": "id",
  "bytes": 0,
  "created_at": 0,
  "filename": "filename",
  "object": "file",
  "purpose": "assistants",
  "status": "uploaded",
  "expires_at": 0,
  "status_details": "status_details"
}

Retrieve file content

HttpResponse files().content(FileContentParamsparams = FileContentParams.none(), RequestOptionsrequestOptions = RequestOptions.none())

get /files/{file_id}/content

Retrieve file content

Parameters

  • FileContentParams params

    • Optional<String> fileId

Example

package com.openai.example;

import com.openai.client.OpenAIClient;
import com.openai.client.okhttp.OpenAIOkHttpClient;
import com.openai.core.http.HttpResponse;
import com.openai.models.files.FileContentParams;

public final class Main {
    private Main() {}

    public static void main(String[] args) {
        OpenAIClient client = OpenAIOkHttpClient.fromEnv();

        HttpResponse response = client.files().content("file_id");
    }
}

Domain Types

File Deleted

  • class FileDeleted:

    • String id

    • boolean deleted

    • JsonValue; object_ "file"constant

      • FILE("file")

File Object

  • class FileObject:

    The File object represents a document that has been uploaded to OpenAI.

    • String id

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

    • long bytes

      The size of the file, in bytes.

    • long createdAt

      The Unix timestamp (in seconds) for when the file was created.

    • String filename

      The name of the file.

    • JsonValue; object_ "file"constant

      The object type, which is always file.

      • FILE("file")
    • Purpose purpose

      The intended purpose of the file. Supported values are assistants, assistants_output, batch, batch_output, fine-tune, fine-tune-results, vision, and user_data.

      • ASSISTANTS("assistants")

      • ASSISTANTS_OUTPUT("assistants_output")

      • BATCH("batch")

      • BATCH_OUTPUT("batch_output")

      • FINE_TUNE("fine-tune")

      • FINE_TUNE_RESULTS("fine-tune-results")

      • VISION("vision")

      • USER_DATA("user_data")

    • Status status

      Deprecated. The current status of the file, which can be either uploaded, processed, or error.

      • UPLOADED("uploaded")

      • PROCESSED("processed")

      • ERROR("error")

    • Optional<Long> expiresAt

      The Unix timestamp (in seconds) for when the file will expire.

    • Optional<String> statusDetails

      Deprecated. For details on why a fine-tuning training file failed validation, see the error field on fine_tuning.job.

File Purpose

  • class FilePurpose: