Cohere Embed API

openapi: 3.1.0
info:
  title: Cohere Embed API
  description: >-
    The Cohere Embed API generates vector embeddings from text and images,
    enabling semantic search, clustering, and classification use cases. It
    supports multilingual content and can process both text and image inputs
    using the Embed v3 model family. Developers can use these embeddings to
    build retrieval systems, recommendation engines, and other applications
    that require understanding semantic similarity between content.
  version: '2.0'
  contact:
    name: Cohere Support
    url: https://support.cohere.com
  termsOfService: https://cohere.com/terms-of-use
externalDocs:
  description: Cohere Embed API Documentation
  url: https://docs.cohere.com/reference/embed
servers:
  - url: https://api.cohere.com
    description: Cohere Production Server
tags:
  - name: Embed
    description: >-
      Endpoints for generating vector embeddings from text and image inputs
      using Cohere embedding models.
security:
  - bearerAuth: []
paths:
  /v2/embed:
    post:
      operationId: embed
      summary: Generate embeddings
      description: >-
        Returns vector embeddings for the provided text or image inputs. The
        embeddings capture semantic information about the content and can be
        used for semantic search, clustering, classification, and other tasks
        requiring similarity comparisons. Requires specifying an input_type
        for embedding models v3 and higher.
      tags:
        - Embed
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/EmbedRequest'
      responses:
        '200':
          description: Successful embedding response
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/EmbedResponse'
        '400':
          description: Bad request due to invalid parameters
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
        '401':
          description: Unauthorized due to missing or invalid API key
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
        '429':
          description: Rate limit exceeded
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
components:
  securitySchemes:
    bearerAuth:
      type: http
      scheme: bearer
      description: >-
        Bearer authentication using a Cohere API key.
  schemas:
    EmbedRequest:
      type: object
      required:
        - model
        - input_type
      properties:
        model:
          type: string
          description: >-
            The name of the embedding model to use.
          example: embed-english-v3.0
        texts:
          type: array
          description: >-
            An array of strings for the model to embed. Maximum number of
            texts per call depends on the model.
          items:
            type: string
        images:
          type: array
          description: >-
            An array of image data for the model to embed. Used with
            models that support image embedding.
          items:
            type: string
        input_type:
          type: string
          enum:
            - search_document
            - search_query
            - classification
            - clustering
            - image
          description: >-
            Specifies the type of input passed to the model. Required for
            embedding models v3 and higher. Use search_document for
            embeddings stored in a vector database, search_query for search
            queries, classification for text classifiers, clustering for
            clustering tasks, and image for image inputs.
        embedding_types:
          type: array
          description: >-
            Specifies the types of embeddings to return. Can include one or
            more of float, int8, uint8, binary, and base64.
          items:
            type: string
            enum:
              - float
              - int8
              - uint8
              - binary
              - base64
        truncate:
          type: string
          enum:
            - NONE
            - START
            - END
          description: >-
            Specifies how the API handles inputs longer than the maximum
            token length. START discards the beginning, END discards the
            end. NONE returns an error if the input is too long.
    EmbedResponse:
      type: object
      properties:
        id:
          type: string
          description: >-
            Unique identifier for the embedding request.
        embeddings:
          type: object
          description: >-
            An object containing the generated embeddings organized by
            embedding type. Each type maps to an array of embedding vectors
            corresponding to the input texts.
          properties:
            float:
              type: array
              description: >-
                Float embeddings for each input.
              items:
                type: array
                items:
                  type: number
            int8:
              type: array
              description: >-
                Signed int8 embeddings for each input.
              items:
                type: array
                items:
                  type: integer
            uint8:
              type: array
              description: >-
                Unsigned int8 embeddings for each input.
              items:
                type: array
                items:
                  type: integer
            binary:
              type: array
              description: >-
                Signed binary embeddings for each input.
              items:
                type: array
                items:
                  type: integer
            base64:
              type: array
              description: >-
                Base64-encoded embeddings for each input.
              items:
                type: string
        texts:
          type: array
          description: >-
            The text entries for which embeddings were returned.
          items:
            type: string
        meta:
          type: object
          description: >-
            Metadata about the API request.
          properties:
            api_version:
              type: object
              properties:
                version:
                  type: string
                  description: >-
                    The API version used for the request.
    Error:
      type: object
      properties:
        message:
          type: string
          description: >-
            A human-readable error message describing what went wrong.