Jina AI Model List API

openapi: 3.2.0
info:
  title: Jina AI Model List API
  description: 'Jina AI APIs on three hosts: Reader (`r.jina.ai`), Search (`s.jina.ai`) and the Search Foundation models (`api.jina.ai`). | I want to | Endpoint |

    |---|---|

    | Read a web page or PDF as LLM-friendly Markdown | GET r.jina.ai/{url} · POST r.jina.ai |

    | Search the web and get the result pages as text | GET s.jina.ai/{q} · POST s.jina.ai/search |

    | Embed text, images, audio, video or PDFs | POST /v1/embeddings |

    | Rerank candidates against a query | POST /v1/rerank |

    | Transcribe a document image (OCR) | POST /v1/chat/completions |

    | Embed a large dataset asynchronously | POST /v1/batch/embeddings |

    | See which models exist and what they cost | GET /v1/models |


    **Authentication.** Send `Authorization: Bearer `. Get a key at https://jina.ai/?sui=apikey. Reader also answers without a key, at a lower rate limit; Search needs one. **EU.** `eu.r.jina.ai` and `eu.s.jina.ai` keep all processing inside the EU. **For LLMs.** `curl docs.jina.ai` returns the meta-prompt, a plain-text guide to these APIs written for coding agents. This reference as Markdown: `curl docs.jina.ai/api.md`. **Rate limits.** r.jina.ai 500 RPM (5k premium), s.jina.ai 100 RPM (1k premium). _Merged from https://api.jina.ai/openapi.json, https://r.jina.ai/openapi.json, https://s.jina.ai/openapi.json. Plain text: https://docs.jina.ai/api.md. Spec: https://docs.jina.ai/openapi.json._


    Best-in-class embeddings, rerankers and document models for multilingual and multimodal search. ## Capabilities


    - **Text embeddings** — dense vectors for semantic search, similarity, clustering and classification, in 100+ languages. - **Multimodal embeddings** — images, video, audio and PDFs embedded into the same space as text, so a query in one modality retrieves another. - **Reranking** — score a query against a candidate set and reorder it; more accurate than embedding similarity, and the usual second stage after it. - **Document OCR** — read a page image and return its content as text or markdown, with tables and layout preserved, over the OpenAI chat completions schema. - **Batch embeddings** — the same embedding models over JSONL, asynchronously, for workloads too large to send inline. ## Authentication


    Every endpoint except `GET /v1/models` requires a key:


    ```

    Authorization: Bearer jina_YOUR_API_KEY

    ```


    Get one at jina.ai/api-dashboard/key-manager. ## Rate limits


    Requests per minute and tokens per minute. Anything over a limit answers `429`. | Endpoint | Free | Paid | Premium |

    |---|---|---|---|

    | `/v1/embeddings` | 500 RPM · 1M TPM | 500 RPM · 10M TPM | 5,000 RPM · 100M TPM |

    | `/v1/rerank` | 500 RPM · 1M TPM | 500 RPM · 10M TPM | 5,000 RPM · 100M TPM |

    | `/v1/chat/completions` | 100 RPM · 500K TPM | 100 RPM · 5M TPM | 1,000 RPM · 50M TPM |


    ## Errors


    Failures carry a `detail`, a `code` from the table below and the `request_id` to quote in a support request. `/v1/chat/completions` is the exception: it answers in OpenAI''s error envelope, with the same code inside it.'
  version: 2026.10.13.1624
servers:
- url: https://api.jina.ai
tags:
- name: Model List
  description: 'Every model this API serves, in OpenRouter-compatible form: identifiers, input and output modalities, context lengths and prices. Read it before hardcoding a model name — the catalogue moves.'
paths:
  /v1/models:
    get:
      tags:
      - Model List
      summary: List Models
      description: Every model in the catalogue, with its modalities, limits and price.
      operationId: list_models_v1_models_get
      responses:
        '200':
          description: Successful Response
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ModelListResponse'
        '400':
          description: 'Bad Request: `INPUT_INVALID_LABELS`, `INPUT_LABEL_LIMIT_EXCEEDED`, `INPUT_MODEL_NOT_FOUND`, `INPUT_TOKEN_LIMIT_EXCEEDED`'
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorResponse'
        '401':
          description: 'Unauthorized: `AUTH_INVALID_API_KEY`, `AUTH_INVALID_FORMAT`, `AUTH_MISSING_API_KEY`'
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorResponse'
        '403':
          description: 'Forbidden: `AUTHZ_INSUFFICIENT_BALANCE`, `AUTHZ_RESOURCE_LIMIT_EXCEEDED`'
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorResponse'
        '404':
          description: 'Not Found: `RESOURCE_NOT_FOUND`'
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorResponse'
        '409':
          description: 'Conflict: `CONFLICT_RESOURCE_BUSY`'
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorResponse'
        '422':
          description: The request body failed schema validation. `errors` names each field.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorResponse'
        '429':
          description: 'Too Many Requests: `RATE_CONCURRENCY_LIMIT_EXCEEDED`, `RATE_IP_LIMIT_EXCEEDED`, `RATE_REQUEST_LIMIT_EXCEEDED`, `RATE_TOKEN_LIMIT_EXCEEDED`'
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorResponse'
        '500':
          description: 'Internal Server Error: `INTERNAL_ERROR`'
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorResponse'
        '503':
          description: 'Service Unavailable: `SERVICE_UNAVAILABLE`'
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorResponse'
        '504':
          description: 'Gateway Timeout: `SERVICE_TIMEOUT`'
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorResponse'
  /v1/models/{model_id}:
    get:
      tags:
      - Model List
      summary: Get Model
      description: 'One model by id, in full (`jina-ai/jina-embeddings-v3`) or short

        (`jina-embeddings-v3`) form.'
      operationId: get_model_v1_models__model_id__get
      parameters:
      - name: model_id
        in: path
        required: true
        schema:
          type: string
          title: Model Id
      responses:
        '200':
          description: Successful Response
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ModelInfo'
        '400':
          description: 'Bad Request: `INPUT_INVALID_LABELS`, `INPUT_LABEL_LIMIT_EXCEEDED`, `INPUT_MODEL_NOT_FOUND`, `INPUT_TOKEN_LIMIT_EXCEEDED`'
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorResponse'
        '401':
          description: 'Unauthorized: `AUTH_INVALID_API_KEY`, `AUTH_INVALID_FORMAT`, `AUTH_MISSING_API_KEY`'
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorResponse'
        '403':
          description: 'Forbidden: `AUTHZ_INSUFFICIENT_BALANCE`, `AUTHZ_RESOURCE_LIMIT_EXCEEDED`'
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorResponse'
        '404':
          description: 'Not Found: `RESOURCE_NOT_FOUND`'
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorResponse'
        '409':
          description: 'Conflict: `CONFLICT_RESOURCE_BUSY`'
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorResponse'
        '422':
          description: The request body failed schema validation. `errors` names each field.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorResponse'
        '429':
          description: 'Too Many Requests: `RATE_CONCURRENCY_LIMIT_EXCEEDED`, `RATE_IP_LIMIT_EXCEEDED`, `RATE_REQUEST_LIMIT_EXCEEDED`, `RATE_TOKEN_LIMIT_EXCEEDED`'
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorResponse'
        '500':
          description: 'Internal Server Error: `INTERNAL_ERROR`'
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorResponse'
        '503':
          description: 'Service Unavailable: `SERVICE_UNAVAILABLE`'
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorResponse'
        '504':
          description: 'Gateway Timeout: `SERVICE_TIMEOUT`'
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorResponse'
components:
  schemas:
    ModelInfo:
      properties:
        id:
          type: string
          title: Id
          description: Unique model identifier (e.g., `jina-ai/jina-embeddings-v3`).
        hugging_face_id:
          type: string
          title: Hugging Face Id
          description: HuggingFace model ID.
        name:
          type: string
          title: Name
          description: Human-readable model name.
        created:
          type: integer
          title: Created
          description: Unix timestamp when the model was released.
        input_modalities:
          items:
            type: string
          type: array
          title: Input Modalities
          description: 'Supported input modalities: `text`, `image`, `video`, `audio`.'
        output_modalities:
          items:
            type: string
          type: array
          title: Output Modalities
          description: 'Output types: `embeddings`, `text`.'
        quantization:
          type: string
          title: Quantization
          description: Quantization level, if any.
        context_length:
          type: integer
          title: Context Length
          description: Maximum context length in tokens.
        max_output_length:
          type: integer
          title: Max Output Length
          description: 'Largest output the model produces: embedding dimensions for an embedding model, tokens for a generative one. `0` where it does not apply.'
        pricing:
          $ref: '#/components/schemas/ModelPricing'
          description: Pricing information.
        supported_sampling_parameters:
          items:
            type: string
          type: array
          title: Supported Sampling Parameters
          description: Supported sampling parameters.
        supported_features:
          items:
            type: string
          type: array
          title: Supported Features
          description: Supported features.
        description:
          type: string
          title: Description
          description: Model description.
        datacenters:
          items:
            $ref: '#/components/schemas/ModelDatacenter'
          type: array
          title: Datacenters
          description: Available datacenter locations.
      type: object
      required:
      - id
      - hugging_face_id
      - name
      - created
      - input_modalities
      - output_modalities
      - quantization
      - context_length
      - max_output_length
      - pricing
      - supported_sampling_parameters
      - supported_features
      - description
      - datacenters
      title: ModelInfo
      description: Information about a single model.
    ErrorResponse:
      properties:
        detail:
          type: string
          title: Detail
          description: Human-readable error message.
          examples:
          - Invalid API key. Verify your API key at https://jina.ai/api-dashboard/key-manager or generate a new one.
        code:
          anyOf:
          - type: string
          - type: 'null'
          title: Code
          description: Machine-readable error code, for programmatic handling.
          examples:
          - AUTH_INVALID_API_KEY
        request_id:
          anyOf:
          - type: string
          - type: 'null'
          title: Request Id
          description: Identifier for this request, quote it in support requests.
          examples:
          - 03f58cd9da22fabf
        errors:
          anyOf:
          - items:
              $ref: '#/components/schemas/FieldError'
            type: array
          - type: 'null'
          title: Errors
          description: Per-field detail. Present on 422 only; `detail` summarises it.
      type: object
      required:
      - detail
      title: ErrorResponse
      description: Failure shape for every endpoint except `/v1/chat/completions`.
    ModelListResponse:
      properties:
        data:
          items:
            $ref: '#/components/schemas/ModelInfo'
          type: array
          title: Data
          description: List of available models.
      type: object
      required:
      - data
      title: ModelListResponse
      description: Response containing list of available models.
      example:
        data:
        - context_length: 8192
          created: 1725840000
          datacenters:
          - country_code: US
          description: jina-embeddings-v3 is a multilingual embedding model...
          hugging_face_id: jinaai/jina-embeddings-v3
          id: jina-ai/jina-embeddings-v3
          input_modalities:
          - text
          max_output_length: 1024
          name: 'Jina AI: Jina Embeddings v3'
          output_modalities:
          - embeddings
          pricing:
            completion: '0'
            image: '0'
            input_cache_read: '0'
            input_cache_write: '0'
            prompt: '0.00000005'
            request: '0'
          quantization: ''
          supported_features: []
          supported_sampling_parameters: []
    ModelPricing:
      properties:
        prompt:
          type: string
          title: Prompt
          description: USD per input token.
        completion:
          type: string
          title: Completion
          description: USD per output token.
        image:
          type: string
          title: Image
          description: USD per image.
        request:
          type: string
          title: Request
          description: USD per request.
        input_cache_read:
          type: string
          title: Input Cache Read
          description: USD per cached input token read.
        input_cache_write:
          type: string
          title: Input Cache Write
          description: USD per cached input token written.
      type: object
      required:
      - prompt
      - completion
      - image
      - request
      - input_cache_read
      - input_cache_write
      title: ModelPricing
      description: Pricing information for a model.
    FieldError:
      properties:
        field:
          type: string
          title: Field
          description: Path to the field, e.g. `body -> input -> 0`.
        message:
          type: string
          title: Message
          description: Why the value was rejected.
        type:
          type: string
          title: Type
          description: Validator that rejected it, e.g. `string_type`.
        input:
          anyOf:
          - {}
          - type: 'null'
          title: Input
          description: The rejected value. Long strings are truncated and containers dropped.
      type: object
      required:
      - field
      - message
      - type
      title: FieldError
      description: One rejected field, as carried in a 422.
    ModelDatacenter:
      properties:
        country_code:
          type: string
          title: Country Code
          description: ISO country code of the datacenter.
      type: object
      required:
      - country_code
      title: ModelDatacenter
      description: Datacenter location for a model.
  securitySchemes:
    HTTPBearer:
      type: http
      scheme: bearer
x-tagGroups:
- name: Reader API (r.jina.ai)
  tags:
  - Reader
- name: Search API (s.jina.ai)
  tags:
  - Search
- name: Search Foundation API (api.jina.ai)
  tags:
  - Model List
  - Search Foundation Models
  - Generative Models
  - Batch Embeddings