---
title: bge-base-en-v1.5 · Cloudflare Workers AI docs
description: BAAI general embedding (Base) model that transforms any given text
  into a 768-dimensional vector
chatbotDeprioritize: false
source_url:
  html: https://developers.cloudflare.com/workers-ai/models/bge-base-en-v1.5/
  md: https://developers.cloudflare.com/workers-ai/models/bge-base-en-v1.5/index.md
---

b

# bge-base-en-v1.5

Text Embeddings • baai

@cf/baai/bge-base-en-v1.5

BAAI general embedding (Base) model that transforms any given text into a 768-dimensional vector

| Model Info | |
| - | - |
| More information | [link](https://huggingface.co/BAAI/bge-base-en-v1.5) |
| Maximum Input Tokens | 512 |
| Output Dimensions | 768 |
| Batch | Yes |
| Unit Pricing | $0.067 per M input tokens |

## Usage

Workers - TypeScript

```ts
export interface Env {
  AI: Ai;
}


export default {
  async fetch(request, env): Promise<Response> {


    // Can be a string or array of strings]
    const stories = [
      "This is a story about an orange cloud",
      "This is a story about a llama",
      "This is a story about a hugging emoji",
    ];


    const embeddings = await env.AI.run(
      "@cf/baai/bge-base-en-v1.5",
      {
        text: stories,
      }
    );


    return Response.json(embeddings);
  },
} satisfies ExportedHandler<Env>;
```

Python

```py
import os
import requests




ACCOUNT_ID = "your-account-id"
AUTH_TOKEN = os.environ.get("CLOUDFLARE_AUTH_TOKEN")


stories = [
  'This is a story about an orange cloud',
  'This is a story about a llama',
  'This is a story about a hugging emoji'
]


response = requests.post(
  f"https://api.cloudflare.com/client/v4/accounts/{ACCOUNT_ID}/ai/run/@cf/baai/bge-base-en-v1.5",
  headers={"Authorization": f"Bearer {AUTH_TOKEN}"},
  json={"text": stories}
)


print(response.json())
```

curl

```sh
curl https://api.cloudflare.com/client/v4/accounts/$CLOUDFLARE_ACCOUNT_ID/ai/run/@cf/baai/bge-base-en-v1.5  \
  -X POST  \
  -H "Authorization: Bearer $CLOUDFLARE_API_TOKEN"  \
  -d '{ "text": ["This is a story about an orange cloud", "This is a story about a llama", "This is a story about a hugging emoji"] }'
```

OpenAI compatible endpoints

Workers AI also supports OpenAI compatible API endpoints for `/v1/chat/completions` and `/v1/embeddings`. For more details, refer to [Configurations ](https://developers.cloudflare.com/workers-ai/configuration/open-ai-compatibility/).

## Parameters

\* indicates a required field

### Input

* `0` object

  * `text` one of required

    * `0` string min 1

      The text to embed

    * `1` array

      Batch of text values to embed

      * `items` string min 1

        The text to embed

  * `pooling` string default mean

    The pooling method used in the embedding process. \`cls\` pooling will generate more accurate embeddings on larger inputs - however, embeddings created with cls pooling are not compatible with embeddings generated with mean pooling. The default pooling method is \`mean\` in order for this to not be a breaking change, but we highly suggest using the new \`cls\` pooling for better accuracy.

* `1` object

  * `requests` array required

    Batch of the embeddings requests to run using async-queue

    * `items` object

      * `text` one of required

        * `0` string min 1

          The text to embed

        * `1` array

          Batch of text values to embed

          * `items` string min 1

            The text to embed

      * `pooling` string default mean

        The pooling method used in the embedding process. \`cls\` pooling will generate more accurate embeddings on larger inputs - however, embeddings created with cls pooling are not compatible with embeddings generated with mean pooling. The default pooling method is \`mean\` in order for this to not be a breaking change, but we highly suggest using the new \`cls\` pooling for better accuracy.

### Output

* `0` object

  * `shape` array

    * `items` number

  * `data` array

    Embeddings of the requested text values

    * `items` array

      Floating point embedding representation shaped by the embedding model

      * `items` number

  * `pooling` string

    The pooling method used in the embedding process.

* `1` object

  * `request_id` string

    The async request id that can be used to obtain the results.

## API Schemas

The following schemas are based on JSON Schema

* Input

  ```json
  {
      "type": "object",
      "oneOf": [
          {
              "properties": {
                  "text": {
                      "oneOf": [
                          {
                              "type": "string",
                              "description": "The text to embed",
                              "minLength": 1
                          },
                          {
                              "type": "array",
                              "description": "Batch of text values to embed",
                              "items": {
                                  "type": "string",
                                  "description": "The text to embed",
                                  "minLength": 1
                              },
                              "maxItems": 100
                          }
                      ]
                  },
                  "pooling": {
                      "type": "string",
                      "enum": [
                          "mean",
                          "cls"
                      ],
                      "default": "mean",
                      "description": "The pooling method used in the embedding process. `cls` pooling will generate more accurate embeddings on larger inputs - however, embeddings created with cls pooling are not compatible with embeddings generated with mean pooling. The default pooling method is `mean` in order for this to not be a breaking change, but we highly suggest using the new `cls` pooling for better accuracy."
                  }
              },
              "required": [
                  "text"
              ]
          },
          {
              "properties": {
                  "requests": {
                      "type": "array",
                      "description": "Batch of the embeddings requests to run using async-queue",
                      "items": {
                          "properties": {
                              "text": {
                                  "oneOf": [
                                      {
                                          "type": "string",
                                          "description": "The text to embed",
                                          "minLength": 1
                                      },
                                      {
                                          "type": "array",
                                          "description": "Batch of text values to embed",
                                          "items": {
                                              "type": "string",
                                              "description": "The text to embed",
                                              "minLength": 1
                                          },
                                          "maxItems": 100
                                      }
                                  ]
                              },
                              "pooling": {
                                  "type": "string",
                                  "enum": [
                                      "mean",
                                      "cls"
                                  ],
                                  "default": "mean",
                                  "description": "The pooling method used in the embedding process. `cls` pooling will generate more accurate embeddings on larger inputs - however, embeddings created with cls pooling are not compatible with embeddings generated with mean pooling. The default pooling method is `mean` in order for this to not be a breaking change, but we highly suggest using the new `cls` pooling for better accuracy."
                              }
                          },
                          "required": [
                              "text"
                          ]
                      }
                  }
              },
              "required": [
                  "requests"
              ]
          }
      ]
  }
  ```

* Output

  ```json
  {
      "oneOf": [
          {
              "type": "object",
              "contentType": "application/json",
              "properties": {
                  "shape": {
                      "type": "array",
                      "items": {
                          "type": "number"
                      }
                  },
                  "data": {
                      "type": "array",
                      "description": "Embeddings of the requested text values",
                      "items": {
                          "type": "array",
                          "description": "Floating point embedding representation shaped by the embedding model",
                          "items": {
                              "type": "number"
                          }
                      }
                  },
                  "pooling": {
                      "type": "string",
                      "enum": [
                          "mean",
                          "cls"
                      ],
                      "description": "The pooling method used in the embedding process."
                  }
              }
          },
          {
              "type": "object",
              "contentType": "application/json",
              "title": "Async response",
              "properties": {
                  "request_id": {
                      "type": "string",
                      "description": "The async request id that can be used to obtain the results."
                  }
              }
          }
      ]
  }
  ```
