# Batches ## Cancel batch **post** `/batches/{batch_id}/cancel` Cancels an in-progress batch. The batch will be in status `cancelling` for up to 10 minutes, before changing to `cancelled`, where it will have partial results (if any) available in the output file. ### Path Parameters - `batch_id: string` ### Returns - `Batch object { id, completion_window, created_at, 19 more }` - `id: string` - `completion_window: string` The time frame within which the batch should be processed. - `created_at: number` The Unix timestamp (in seconds) for when the batch was created. - `endpoint: string` The OpenAI API endpoint used by the batch. - `input_file_id: string` The ID of the input file for the batch. - `object: "batch"` The object type, which is always `batch`. - `"batch"` - `status: "validating" or "failed" or "in_progress" or 5 more` The current status of the batch. - `"validating"` - `"failed"` - `"in_progress"` - `"finalizing"` - `"completed"` - `"expired"` - `"cancelling"` - `"cancelled"` - `cancelled_at: optional number` The Unix timestamp (in seconds) for when the batch was cancelled. - `cancelling_at: optional number` The Unix timestamp (in seconds) for when the batch started cancelling. - `completed_at: optional number` The Unix timestamp (in seconds) for when the batch was completed. - `error_file_id: optional string` The ID of the file containing the outputs of requests with errors. - `errors: optional object { data, object }` - `data: optional array of BatchError` - `code: optional string` An error code identifying the error type. - `line: optional number or null` The line number of the input file where the error occurred, if applicable. - `message: optional string` A human-readable message providing more details about the error. - `param: optional string or null` The name of the parameter that caused the error, if applicable. - `object: optional string` The object type, which is always `list`. - `expired_at: optional number` The Unix timestamp (in seconds) for when the batch expired. - `expires_at: optional number` The Unix timestamp (in seconds) for when the batch will expire. - `failed_at: optional number` The Unix timestamp (in seconds) for when the batch failed. - `finalizing_at: optional number` The Unix timestamp (in seconds) for when the batch started finalizing. - `in_progress_at: optional number` The Unix timestamp (in seconds) for when the batch started processing. - `metadata: optional Metadata or null` 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. - `model: optional string` Model ID used to process the batch, like `gpt-6-astra`. OpenAI offers a wide range of models with different capabilities, performance characteristics, and price points. Refer to the [model guide](/api/docs/models) to browse and compare available models. - `output_file_id: optional string` The ID of the file containing the outputs of successfully executed requests. - `request_counts: optional BatchRequestCounts` The request counts for different statuses within the batch. - `completed: number` Number of requests that have been completed successfully. - `failed: number` Number of requests that have failed. - `total: number` Total number of requests in the batch. - `usage: optional BatchUsage` Represents token usage details including input tokens, output tokens, a breakdown of output tokens, and the total tokens used. Only populated on batches created after September 7, 2025. - `input_tokens: number` The number of input tokens. - `input_tokens_details: object { cached_tokens }` A detailed breakdown of the input tokens. - `cached_tokens: number` The number of tokens that were retrieved from the cache. [More on prompt caching](/api/docs/guides/prompt-caching). - `output_tokens: number` The number of output tokens. - `output_tokens_details: object { reasoning_tokens }` A detailed breakdown of the output tokens. - `reasoning_tokens: number` The number of reasoning tokens. - `total_tokens: number` The total number of tokens used. ### Example ```http curl https://api.openai.com/v1/batches/$BATCH_ID/cancel \ -X POST \ -H "Authorization: Bearer $OPENAI_API_KEY" ``` #### Response ```json { "id": "id", "completion_window": "completion_window", "created_at": 0, "endpoint": "endpoint", "input_file_id": "input_file_id", "object": "batch", "status": "validating", "cancelled_at": 0, "cancelling_at": 0, "completed_at": 0, "error_file_id": "error_file_id", "errors": { "data": [ { "code": "code", "line": 0, "message": "message", "param": "param" } ], "object": "object" }, "expired_at": 0, "expires_at": 0, "failed_at": 0, "finalizing_at": 0, "in_progress_at": 0, "metadata": { "foo": "string" }, "model": "model", "output_file_id": "output_file_id", "request_counts": { "completed": 0, "failed": 0, "total": 0 }, "usage": { "input_tokens": 0, "input_tokens_details": { "cached_tokens": 0 }, "output_tokens": 0, "output_tokens_details": { "reasoning_tokens": 0 }, "total_tokens": 0 } } ``` ### Example ```http curl https://api.openai.com/v1/batches/batch_abc123/cancel \ -H "Authorization: Bearer $OPENAI_API_KEY" \ -H "Content-Type: application/json" \ -X POST ``` #### Response ```json { "id": "batch_abc123", "object": "batch", "endpoint": "/v1/chat/completions", "errors": null, "input_file_id": "file-abc123", "completion_window": "24h", "status": "cancelling", "output_file_id": null, "error_file_id": null, "created_at": 1711471533, "in_progress_at": 1711471538, "expires_at": 1711557933, "finalizing_at": null, "completed_at": null, "failed_at": null, "expired_at": null, "cancelling_at": 1711475133, "cancelled_at": null, "request_counts": { "total": 100, "completed": 23, "failed": 1 }, "metadata": { "customer_id": "user_123456789", "batch_description": "Nightly eval job", } } ``` ## Create batch **post** `/batches` Creates and executes a batch from an uploaded file of requests ### Body Parameters - `completion_window: "24h"` The time frame within which the batch should be processed. Currently only `24h` is supported. - `"24h"` - `endpoint: "/v1/responses" or "/v1/chat/completions" or "/v1/embeddings" or 5 more` The endpoint to be used for all requests in the batch. Currently `/v1/responses`, `/v1/chat/completions`, `/v1/embeddings`, `/v1/completions`, `/v1/moderations`, `/v1/images/generations`, `/v1/images/edits`, and `/v1/videos` are supported. Note that `/v1/embeddings` batches are also restricted to a maximum of 50,000 embedding inputs across all requests in the batch. - `"/v1/responses"` - `"/v1/chat/completions"` - `"/v1/embeddings"` - `"/v1/completions"` - `"/v1/moderations"` - `"/v1/images/generations"` - `"/v1/images/edits"` - `"/v1/videos"` - `input_file_id: string` The ID of an uploaded file that contains requests for the new batch. See [upload file](/api/reference/resources/files/methods/create) for how to upload a file. Your input file must be formatted as a [JSONL file](/api/docs/guides/batch#1-prepare-your-batch-file), and must be uploaded with the purpose `batch`. The file can contain up to 50,000 requests, and can be up to 200 MB in size. - `metadata: optional Metadata or null` 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. - `output_expires_after: optional object { anchor, seconds }` The expiration policy for the output and/or error file that are generated for a batch. - `anchor: "created_at"` Anchor timestamp after which the expiration policy applies. Supported anchors: `created_at`. Note that the anchor is the file creation time, not the time the batch is created. - `"created_at"` - `seconds: number` The number of seconds after the anchor time that the file will expire. Must be between 3600 (1 hour) and 2592000 (30 days). ### Returns - `Batch object { id, completion_window, created_at, 19 more }` - `id: string` - `completion_window: string` The time frame within which the batch should be processed. - `created_at: number` The Unix timestamp (in seconds) for when the batch was created. - `endpoint: string` The OpenAI API endpoint used by the batch. - `input_file_id: string` The ID of the input file for the batch. - `object: "batch"` The object type, which is always `batch`. - `"batch"` - `status: "validating" or "failed" or "in_progress" or 5 more` The current status of the batch. - `"validating"` - `"failed"` - `"in_progress"` - `"finalizing"` - `"completed"` - `"expired"` - `"cancelling"` - `"cancelled"` - `cancelled_at: optional number` The Unix timestamp (in seconds) for when the batch was cancelled. - `cancelling_at: optional number` The Unix timestamp (in seconds) for when the batch started cancelling. - `completed_at: optional number` The Unix timestamp (in seconds) for when the batch was completed. - `error_file_id: optional string` The ID of the file containing the outputs of requests with errors. - `errors: optional object { data, object }` - `data: optional array of BatchError` - `code: optional string` An error code identifying the error type. - `line: optional number or null` The line number of the input file where the error occurred, if applicable. - `message: optional string` A human-readable message providing more details about the error. - `param: optional string or null` The name of the parameter that caused the error, if applicable. - `object: optional string` The object type, which is always `list`. - `expired_at: optional number` The Unix timestamp (in seconds) for when the batch expired. - `expires_at: optional number` The Unix timestamp (in seconds) for when the batch will expire. - `failed_at: optional number` The Unix timestamp (in seconds) for when the batch failed. - `finalizing_at: optional number` The Unix timestamp (in seconds) for when the batch started finalizing. - `in_progress_at: optional number` The Unix timestamp (in seconds) for when the batch started processing. - `metadata: optional Metadata or null` 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. - `model: optional string` Model ID used to process the batch, like `gpt-6-astra`. OpenAI offers a wide range of models with different capabilities, performance characteristics, and price points. Refer to the [model guide](/api/docs/models) to browse and compare available models. - `output_file_id: optional string` The ID of the file containing the outputs of successfully executed requests. - `request_counts: optional BatchRequestCounts` The request counts for different statuses within the batch. - `completed: number` Number of requests that have been completed successfully. - `failed: number` Number of requests that have failed. - `total: number` Total number of requests in the batch. - `usage: optional BatchUsage` Represents token usage details including input tokens, output tokens, a breakdown of output tokens, and the total tokens used. Only populated on batches created after September 7, 2025. - `input_tokens: number` The number of input tokens. - `input_tokens_details: object { cached_tokens }` A detailed breakdown of the input tokens. - `cached_tokens: number` The number of tokens that were retrieved from the cache. [More on prompt caching](/api/docs/guides/prompt-caching). - `output_tokens: number` The number of output tokens. - `output_tokens_details: object { reasoning_tokens }` A detailed breakdown of the output tokens. - `reasoning_tokens: number` The number of reasoning tokens. - `total_tokens: number` The total number of tokens used. ### Example ```http curl https://api.openai.com/v1/batches \ -H 'Content-Type: application/json' \ -H "Authorization: Bearer $OPENAI_API_KEY" \ -d '{ "completion_window": "24h", "endpoint": "/v1/responses", "input_file_id": "input_file_id" }' ``` #### Response ```json { "id": "id", "completion_window": "completion_window", "created_at": 0, "endpoint": "endpoint", "input_file_id": "input_file_id", "object": "batch", "status": "validating", "cancelled_at": 0, "cancelling_at": 0, "completed_at": 0, "error_file_id": "error_file_id", "errors": { "data": [ { "code": "code", "line": 0, "message": "message", "param": "param" } ], "object": "object" }, "expired_at": 0, "expires_at": 0, "failed_at": 0, "finalizing_at": 0, "in_progress_at": 0, "metadata": { "foo": "string" }, "model": "model", "output_file_id": "output_file_id", "request_counts": { "completed": 0, "failed": 0, "total": 0 }, "usage": { "input_tokens": 0, "input_tokens_details": { "cached_tokens": 0 }, "output_tokens": 0, "output_tokens_details": { "reasoning_tokens": 0 }, "total_tokens": 0 } } ``` ### Example ```http curl https://api.openai.com/v1/batches \ -H "Authorization: Bearer $OPENAI_API_KEY" \ -H "Content-Type: application/json" \ -d '{ "input_file_id": "file-abc123", "endpoint": "/v1/chat/completions", "completion_window": "24h" }' ``` #### Response ```json { "id": "batch_abc123", "object": "batch", "endpoint": "/v1/chat/completions", "errors": null, "input_file_id": "file-abc123", "completion_window": "24h", "status": "validating", "output_file_id": null, "error_file_id": null, "created_at": 1711471533, "in_progress_at": null, "expires_at": null, "finalizing_at": null, "completed_at": null, "failed_at": null, "expired_at": null, "cancelling_at": null, "cancelled_at": null, "request_counts": { "total": 0, "completed": 0, "failed": 0 }, "metadata": { "customer_id": "user_123456789", "batch_description": "Nightly eval job", } } ``` ## List batches **get** `/batches` List your organization's batches. ### Query Parameters - `after: optional string` 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. - `limit: optional number` A limit on the number of objects to be returned. Limit can range between 1 and 100, and the default is 20. ### Returns - `data: array of Batch` - `id: string` - `completion_window: string` The time frame within which the batch should be processed. - `created_at: number` The Unix timestamp (in seconds) for when the batch was created. - `endpoint: string` The OpenAI API endpoint used by the batch. - `input_file_id: string` The ID of the input file for the batch. - `object: "batch"` The object type, which is always `batch`. - `"batch"` - `status: "validating" or "failed" or "in_progress" or 5 more` The current status of the batch. - `"validating"` - `"failed"` - `"in_progress"` - `"finalizing"` - `"completed"` - `"expired"` - `"cancelling"` - `"cancelled"` - `cancelled_at: optional number` The Unix timestamp (in seconds) for when the batch was cancelled. - `cancelling_at: optional number` The Unix timestamp (in seconds) for when the batch started cancelling. - `completed_at: optional number` The Unix timestamp (in seconds) for when the batch was completed. - `error_file_id: optional string` The ID of the file containing the outputs of requests with errors. - `errors: optional object { data, object }` - `data: optional array of BatchError` - `code: optional string` An error code identifying the error type. - `line: optional number or null` The line number of the input file where the error occurred, if applicable. - `message: optional string` A human-readable message providing more details about the error. - `param: optional string or null` The name of the parameter that caused the error, if applicable. - `object: optional string` The object type, which is always `list`. - `expired_at: optional number` The Unix timestamp (in seconds) for when the batch expired. - `expires_at: optional number` The Unix timestamp (in seconds) for when the batch will expire. - `failed_at: optional number` The Unix timestamp (in seconds) for when the batch failed. - `finalizing_at: optional number` The Unix timestamp (in seconds) for when the batch started finalizing. - `in_progress_at: optional number` The Unix timestamp (in seconds) for when the batch started processing. - `metadata: optional Metadata or null` 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. - `model: optional string` Model ID used to process the batch, like `gpt-6-astra`. OpenAI offers a wide range of models with different capabilities, performance characteristics, and price points. Refer to the [model guide](/api/docs/models) to browse and compare available models. - `output_file_id: optional string` The ID of the file containing the outputs of successfully executed requests. - `request_counts: optional BatchRequestCounts` The request counts for different statuses within the batch. - `completed: number` Number of requests that have been completed successfully. - `failed: number` Number of requests that have failed. - `total: number` Total number of requests in the batch. - `usage: optional BatchUsage` Represents token usage details including input tokens, output tokens, a breakdown of output tokens, and the total tokens used. Only populated on batches created after September 7, 2025. - `input_tokens: number` The number of input tokens. - `input_tokens_details: object { cached_tokens }` A detailed breakdown of the input tokens. - `cached_tokens: number` The number of tokens that were retrieved from the cache. [More on prompt caching](/api/docs/guides/prompt-caching). - `output_tokens: number` The number of output tokens. - `output_tokens_details: object { reasoning_tokens }` A detailed breakdown of the output tokens. - `reasoning_tokens: number` The number of reasoning tokens. - `total_tokens: number` The total number of tokens used. - `has_more: boolean` - `object: "list"` - `"list"` - `first_id: optional string` - `last_id: optional string` ### Example ```http curl https://api.openai.com/v1/batches \ -H "Authorization: Bearer $OPENAI_API_KEY" ``` #### Response ```json { "data": [ { "id": "id", "completion_window": "completion_window", "created_at": 0, "endpoint": "endpoint", "input_file_id": "input_file_id", "object": "batch", "status": "validating", "cancelled_at": 0, "cancelling_at": 0, "completed_at": 0, "error_file_id": "error_file_id", "errors": { "data": [ { "code": "code", "line": 0, "message": "message", "param": "param" } ], "object": "object" }, "expired_at": 0, "expires_at": 0, "failed_at": 0, "finalizing_at": 0, "in_progress_at": 0, "metadata": { "foo": "string" }, "model": "model", "output_file_id": "output_file_id", "request_counts": { "completed": 0, "failed": 0, "total": 0 }, "usage": { "input_tokens": 0, "input_tokens_details": { "cached_tokens": 0 }, "output_tokens": 0, "output_tokens_details": { "reasoning_tokens": 0 }, "total_tokens": 0 } } ], "has_more": true, "object": "list", "first_id": "batch_abc123", "last_id": "batch_abc456" } ``` ### Example ```http curl https://api.openai.com/v1/batches?limit=2 \ -H "Authorization: Bearer $OPENAI_API_KEY" \ -H "Content-Type: application/json" ``` #### Response ```json { "object": "list", "data": [ { "id": "batch_abc123", "object": "batch", "endpoint": "/v1/chat/completions", "errors": null, "input_file_id": "file-abc123", "completion_window": "24h", "status": "completed", "output_file_id": "file-cvaTdG", "error_file_id": "file-HOWS94", "created_at": 1711471533, "in_progress_at": 1711471538, "expires_at": 1711557933, "finalizing_at": 1711493133, "completed_at": 1711493163, "failed_at": null, "expired_at": null, "cancelling_at": null, "cancelled_at": null, "request_counts": { "total": 100, "completed": 95, "failed": 5 }, "metadata": { "customer_id": "user_123456789", "batch_description": "Nightly job", } }, { ... }, ], "first_id": "batch_abc123", "last_id": "batch_abc456", "has_more": true } ``` ## Retrieve batch **get** `/batches/{batch_id}` Retrieves a batch. ### Path Parameters - `batch_id: string` ### Returns - `Batch object { id, completion_window, created_at, 19 more }` - `id: string` - `completion_window: string` The time frame within which the batch should be processed. - `created_at: number` The Unix timestamp (in seconds) for when the batch was created. - `endpoint: string` The OpenAI API endpoint used by the batch. - `input_file_id: string` The ID of the input file for the batch. - `object: "batch"` The object type, which is always `batch`. - `"batch"` - `status: "validating" or "failed" or "in_progress" or 5 more` The current status of the batch. - `"validating"` - `"failed"` - `"in_progress"` - `"finalizing"` - `"completed"` - `"expired"` - `"cancelling"` - `"cancelled"` - `cancelled_at: optional number` The Unix timestamp (in seconds) for when the batch was cancelled. - `cancelling_at: optional number` The Unix timestamp (in seconds) for when the batch started cancelling. - `completed_at: optional number` The Unix timestamp (in seconds) for when the batch was completed. - `error_file_id: optional string` The ID of the file containing the outputs of requests with errors. - `errors: optional object { data, object }` - `data: optional array of BatchError` - `code: optional string` An error code identifying the error type. - `line: optional number or null` The line number of the input file where the error occurred, if applicable. - `message: optional string` A human-readable message providing more details about the error. - `param: optional string or null` The name of the parameter that caused the error, if applicable. - `object: optional string` The object type, which is always `list`. - `expired_at: optional number` The Unix timestamp (in seconds) for when the batch expired. - `expires_at: optional number` The Unix timestamp (in seconds) for when the batch will expire. - `failed_at: optional number` The Unix timestamp (in seconds) for when the batch failed. - `finalizing_at: optional number` The Unix timestamp (in seconds) for when the batch started finalizing. - `in_progress_at: optional number` The Unix timestamp (in seconds) for when the batch started processing. - `metadata: optional Metadata or null` 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. - `model: optional string` Model ID used to process the batch, like `gpt-6-astra`. OpenAI offers a wide range of models with different capabilities, performance characteristics, and price points. Refer to the [model guide](/api/docs/models) to browse and compare available models. - `output_file_id: optional string` The ID of the file containing the outputs of successfully executed requests. - `request_counts: optional BatchRequestCounts` The request counts for different statuses within the batch. - `completed: number` Number of requests that have been completed successfully. - `failed: number` Number of requests that have failed. - `total: number` Total number of requests in the batch. - `usage: optional BatchUsage` Represents token usage details including input tokens, output tokens, a breakdown of output tokens, and the total tokens used. Only populated on batches created after September 7, 2025. - `input_tokens: number` The number of input tokens. - `input_tokens_details: object { cached_tokens }` A detailed breakdown of the input tokens. - `cached_tokens: number` The number of tokens that were retrieved from the cache. [More on prompt caching](/api/docs/guides/prompt-caching). - `output_tokens: number` The number of output tokens. - `output_tokens_details: object { reasoning_tokens }` A detailed breakdown of the output tokens. - `reasoning_tokens: number` The number of reasoning tokens. - `total_tokens: number` The total number of tokens used. ### Example ```http curl https://api.openai.com/v1/batches/$BATCH_ID \ -H "Authorization: Bearer $OPENAI_API_KEY" ``` #### Response ```json { "id": "id", "completion_window": "completion_window", "created_at": 0, "endpoint": "endpoint", "input_file_id": "input_file_id", "object": "batch", "status": "validating", "cancelled_at": 0, "cancelling_at": 0, "completed_at": 0, "error_file_id": "error_file_id", "errors": { "data": [ { "code": "code", "line": 0, "message": "message", "param": "param" } ], "object": "object" }, "expired_at": 0, "expires_at": 0, "failed_at": 0, "finalizing_at": 0, "in_progress_at": 0, "metadata": { "foo": "string" }, "model": "model", "output_file_id": "output_file_id", "request_counts": { "completed": 0, "failed": 0, "total": 0 }, "usage": { "input_tokens": 0, "input_tokens_details": { "cached_tokens": 0 }, "output_tokens": 0, "output_tokens_details": { "reasoning_tokens": 0 }, "total_tokens": 0 } } ``` ### Example ```http curl https://api.openai.com/v1/batches/batch_abc123 \ -H "Authorization: Bearer $OPENAI_API_KEY" \ -H "Content-Type: application/json" \ ``` #### Response ```json { "id": "batch_abc123", "object": "batch", "endpoint": "/v1/completions", "errors": null, "input_file_id": "file-abc123", "completion_window": "24h", "status": "completed", "output_file_id": "file-cvaTdG", "error_file_id": "file-HOWS94", "created_at": 1711471533, "in_progress_at": 1711471538, "expires_at": 1711557933, "finalizing_at": 1711493133, "completed_at": 1711493163, "failed_at": null, "expired_at": null, "cancelling_at": null, "cancelled_at": null, "request_counts": { "total": 100, "completed": 95, "failed": 5 }, "metadata": { "customer_id": "user_123456789", "batch_description": "Nightly eval job", } } ``` ## Domain Types ### Batch - `Batch object { id, completion_window, created_at, 19 more }` - `id: string` - `completion_window: string` The time frame within which the batch should be processed. - `created_at: number` The Unix timestamp (in seconds) for when the batch was created. - `endpoint: string` The OpenAI API endpoint used by the batch. - `input_file_id: string` The ID of the input file for the batch. - `object: "batch"` The object type, which is always `batch`. - `"batch"` - `status: "validating" or "failed" or "in_progress" or 5 more` The current status of the batch. - `"validating"` - `"failed"` - `"in_progress"` - `"finalizing"` - `"completed"` - `"expired"` - `"cancelling"` - `"cancelled"` - `cancelled_at: optional number` The Unix timestamp (in seconds) for when the batch was cancelled. - `cancelling_at: optional number` The Unix timestamp (in seconds) for when the batch started cancelling. - `completed_at: optional number` The Unix timestamp (in seconds) for when the batch was completed. - `error_file_id: optional string` The ID of the file containing the outputs of requests with errors. - `errors: optional object { data, object }` - `data: optional array of BatchError` - `code: optional string` An error code identifying the error type. - `line: optional number or null` The line number of the input file where the error occurred, if applicable. - `message: optional string` A human-readable message providing more details about the error. - `param: optional string or null` The name of the parameter that caused the error, if applicable. - `object: optional string` The object type, which is always `list`. - `expired_at: optional number` The Unix timestamp (in seconds) for when the batch expired. - `expires_at: optional number` The Unix timestamp (in seconds) for when the batch will expire. - `failed_at: optional number` The Unix timestamp (in seconds) for when the batch failed. - `finalizing_at: optional number` The Unix timestamp (in seconds) for when the batch started finalizing. - `in_progress_at: optional number` The Unix timestamp (in seconds) for when the batch started processing. - `metadata: optional Metadata or null` 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. - `model: optional string` Model ID used to process the batch, like `gpt-6-astra`. OpenAI offers a wide range of models with different capabilities, performance characteristics, and price points. Refer to the [model guide](/api/docs/models) to browse and compare available models. - `output_file_id: optional string` The ID of the file containing the outputs of successfully executed requests. - `request_counts: optional BatchRequestCounts` The request counts for different statuses within the batch. - `completed: number` Number of requests that have been completed successfully. - `failed: number` Number of requests that have failed. - `total: number` Total number of requests in the batch. - `usage: optional BatchUsage` Represents token usage details including input tokens, output tokens, a breakdown of output tokens, and the total tokens used. Only populated on batches created after September 7, 2025. - `input_tokens: number` The number of input tokens. - `input_tokens_details: object { cached_tokens }` A detailed breakdown of the input tokens. - `cached_tokens: number` The number of tokens that were retrieved from the cache. [More on prompt caching](/api/docs/guides/prompt-caching). - `output_tokens: number` The number of output tokens. - `output_tokens_details: object { reasoning_tokens }` A detailed breakdown of the output tokens. - `reasoning_tokens: number` The number of reasoning tokens. - `total_tokens: number` The total number of tokens used. ### Batch Error - `BatchError object { code, line, message, param }` - `code: optional string` An error code identifying the error type. - `line: optional number or null` The line number of the input file where the error occurred, if applicable. - `message: optional string` A human-readable message providing more details about the error. - `param: optional string or null` The name of the parameter that caused the error, if applicable. ### Batch Request Counts - `BatchRequestCounts object { completed, failed, total }` The request counts for different statuses within the batch. - `completed: number` Number of requests that have been completed successfully. - `failed: number` Number of requests that have failed. - `total: number` Total number of requests in the batch. ### Batch Usage - `BatchUsage object { input_tokens, input_tokens_details, output_tokens, 2 more }` Represents token usage details including input tokens, output tokens, a breakdown of output tokens, and the total tokens used. Only populated on batches created after September 7, 2025. - `input_tokens: number` The number of input tokens. - `input_tokens_details: object { cached_tokens }` A detailed breakdown of the input tokens. - `cached_tokens: number` The number of tokens that were retrieved from the cache. [More on prompt caching](/api/docs/guides/prompt-caching). - `output_tokens: number` The number of output tokens. - `output_tokens_details: object { reasoning_tokens }` A detailed breakdown of the output tokens. - `reasoning_tokens: number` The number of reasoning tokens. - `total_tokens: number` The total number of tokens used.