> ## Documentation Index
> Fetch the complete documentation index at: https://docs.platform.toloka.ai/docs/llms.txt
> Use this file to discover all available pages before exploring further.

# Get a model version

> Return the immutable version metadata, file manifest, and source training run.



## OpenAPI

````yaml /api-reference/openapi.json get /model-versions/{modelVersionId}
openapi: 3.1.0
info:
  description: >-
    Manage projects, datasets, labeling pipelines, and model training. **Beta:**
    endpoints, request and response shapes, and error contracts can change
    without notice or a backward-compatibility promise.
  title: Toloka Platform API
  version: 2.0.0
servers:
  - url: https://platform.toloka.ai/api/v2-beta
security:
  - apiKeyAuth: []
  - scopedTokenAuth: []
tags:
  - description: The authenticated API key owner.
    name: Account
  - description: A project is the container for pipelines, datasets, and files.
    name: Projects
  - description: Rows and typed fields. Field schemas are immutable once created.
    name: Datasets
  - description: Append rows to a dataset from a file.
    name: Dataset uploads
  - description: Read a dataset out as a file.
    name: Dataset exports
  - description: A pipeline is a graph of nodes that processes each dataset item.
    name: Pipelines
  - description: The nodes, connections, fields, and version of a pipeline graph.
    name: Pipeline graph
  - description: Execute a pipeline over a dataset and inspect each item.
    name: Runs
  - description: Per-node checks that a pipeline must pass before deployment.
    name: Checks
  - description: Named credentials available to pipeline code.
    name: Secrets
  - description: Project files available to pipeline code and labeling interfaces.
    name: Files
  - description: >-
      Global, read-only catalog of the models a synthetic generation node can
      use, with their budget bounds.
    name: Generation models
  - description: >-
      Global, read-only catalog of the expert audience: the values a node
      `audience` filter can use.
    name: Audience
  - description: >-
      Project lists of experts a node can take its workforce from with
      `audienceMode: service`. Available only to teams with the audience service
      enabled.
    name: Expert lists
  - description: >-
      Experts banned in a project: they cannot be invited and are removed from
      the work they are in. Available only to teams with expert bans enabled.
    name: Expert ban list
  - description: Global, read-only base model catalog.
    name: Base models
  - description: Project-owned mutable model-training drafts.
    name: Trainings
  - description: Project-owned Models and immutable Model Versions.
    name: Models
  - name: Batch inference
paths:
  /model-versions/{modelVersionId}:
    get:
      tags:
        - Models
      summary: Get a model version
      description: >-
        Return the immutable version metadata, file manifest, and source
        training run.
      operationId: getModelVersion
      parameters:
        - in: path
          name: modelVersionId
          required: true
          schema:
            $ref: '#/components/schemas/ModelVersionId'
      responses:
        '200':
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ModelVersion'
          description: Model Version
          headers:
            RateLimit-Limit:
              $ref: '#/components/headers/RateLimit-Limit'
            RateLimit-Policy:
              $ref: '#/components/headers/RateLimit-Policy'
            RateLimit-Remaining:
              $ref: '#/components/headers/RateLimit-Remaining'
            RateLimit-Reset:
              $ref: '#/components/headers/RateLimit-Reset'
            X-Request-Id:
              $ref: '#/components/headers/X-Request-Id'
        '429':
          description: Rate limit exceeded
          headers:
            RateLimit-Limit:
              $ref: '#/components/headers/RateLimit-Limit'
            RateLimit-Policy:
              $ref: '#/components/headers/RateLimit-Policy'
            RateLimit-Remaining:
              $ref: '#/components/headers/RateLimit-Remaining'
            RateLimit-Reset:
              $ref: '#/components/headers/RateLimit-Reset'
            X-Request-Id:
              $ref: '#/components/headers/X-Request-Id'
      x-codeSamples:
        - label: TypeScript SDK
          lang: typescript
          source: |
            import { createClient } from "@toloka-platform/sdk";

            const client = createClient({
              baseUrl: "https://platform.toloka.ai",
              apiKey: process.env.TOLOKA_API_KEY!,
            });

            const version = await client.models.getVersion({
              modelVersionId: "mdv.019a0000-0000-7000-8000-000000000001"
            });
            console.log(version);
components:
  schemas:
    ModelVersionId:
      description: Model version ID with prefix `mdv.`.
      pattern: >-
        ^mdv\.[0-9a-f]{8}-[0-9a-f]{4}-[7][0-9a-f]{3}-[89ab][0-9a-f]{3}-[0-9a-f]{12}$
      type: string
    ModelVersion:
      description: One immutable version of a project Model.
      properties:
        content:
          description: >-
            Model weights or LoRA adapter, its base model, parent, and file
            manifest.
          oneOf:
            - additionalProperties: false
              properties:
                kind:
                  const: lora_adapter
                  description: >-
                    Content kind: `lora_adapter` contains an adapter; `full`
                    contains complete model weights.
                  type: string
                manifest:
                  $ref: '#/components/schemas/ModelVersionManifest'
                parent:
                  $ref: '#/components/schemas/ModelVersionParent'
                runtimeBase:
                  description: >-
                    Catalog base model required to run these weights or this
                    adapter.
                  enum:
                    - qwen3-4b
                    - qwen3-8b
                    - qwen3-32b
                    - qwen3-235b
                  type: string
              required:
                - runtimeBase
                - manifest
                - kind
                - parent
              type: object
            - additionalProperties: false
              properties:
                kind:
                  const: full
                  description: >-
                    Content kind: `lora_adapter` contains an adapter; `full`
                    contains complete model weights.
                  type: string
                manifest:
                  $ref: '#/components/schemas/ModelVersionManifest'
                parent:
                  $ref: '#/components/schemas/ModelVersionParent'
                runtimeBase:
                  description: >-
                    Catalog base model required to run these weights or this
                    adapter.
                  enum:
                    - qwen3-4b
                    - qwen3-8b
                    - qwen3-32b
                    - qwen3-235b
                  type: string
              required:
                - runtimeBase
                - manifest
                - kind
              type: object
        createdAt:
          description: Time the model version was created, as an ISO 8601 timestamp.
          format: date-time
          pattern: >-
            ^(?:(?:\d\d[2468][048]|\d\d[13579][26]|\d\d0[48]|[02468][048]00|[13579][26]00)-02-29|\d{4}-(?:(?:0[13578]|1[02])-(?:0[1-9]|[12]\d|3[01])|(?:0[469]|11)-(?:0[1-9]|[12]\d|30)|(?:02)-(?:0[1-9]|1\d|2[0-8])))T(?:(?:[01]\d|2[0-3]):[0-5]\d:[0-5]\d(?:\.\d+)?(?:Z))$
          type: string
        id:
          $ref: '#/components/schemas/ModelVersionId'
        modelId:
          $ref: '#/components/schemas/ModelId'
        name:
          description: Name of this model version.
          maxLength: 120
          minLength: 1
          type: string
        producer:
          additionalProperties: false
          description: Training run that produced this model version.
          properties:
            trainingRunId:
              description: >-
                ID of the training run that produced the version, with prefix
                `trn.`.
              pattern: >-
                ^trn\.[0-9a-f]{8}-[0-9a-f]{4}-[7][0-9a-f]{3}-[89ab][0-9a-f]{3}-[0-9a-f]{12}$
              type: string
            type:
              const: training_run
              description: >-
                Producer kind; `training_run` means this version was produced by
                a training run.
              type: string
          required:
            - type
            - trainingRunId
          type: object
        revision:
          description: Positive revision number assigned to this version within its model.
          exclusiveMinimum: 0
          maximum: 9007199254740991
          type: integer
      required:
        - id
        - modelId
        - name
        - revision
        - content
        - producer
        - createdAt
      type: object
    ModelVersionManifest:
      description: Files that make up the model version, with sizes and checksums.
      items:
        additionalProperties: false
        properties:
          byteSize:
            description: Size of this file in bytes.
            maximum: 10737418240
            minimum: 0
            type: integer
          mediaType:
            description: >-
              File media type: `application/json` for JSON files or
              `application/octet-stream` for binary files.
            enum:
              - application/octet-stream
              - application/json
            type: string
          path:
            description: >-
              Relative file path within the model version; absolute paths and
              parent-directory segments are not allowed.
            maxLength: 512
            minLength: 1
            pattern: >-
              ^(?!\/)(?!.*(?:^|\/)\.{1,2}(?:\/|$))[A-Za-z0-9._-]+(?:\/[A-Za-z0-9._-]+)*$
            type: string
          sha256:
            description: >-
              SHA-256 checksum of the file, as 64 lowercase hexadecimal
              characters.
            pattern: ^[0-9a-f]{64}$
            type: string
        required:
          - path
          - byteSize
          - mediaType
          - sha256
        type: object
      maxItems: 64
      minItems: 1
      type: array
    ModelVersionParent:
      description: >-
        Parent model source; may be absent for full weights with no recorded
        parent.
      oneOf:
        - additionalProperties: false
          properties:
            baseModelId:
              description: Catalog base model identifier.
              enum:
                - qwen3-4b
                - qwen3-8b
                - qwen3-32b
                - qwen3-235b
              type: string
            type:
              const: base_model
              description: >-
                Parent source: `base_model` for a catalog model or
                `model_version` for a published project version.
              type: string
          required:
            - type
            - baseModelId
          type: object
        - additionalProperties: false
          properties:
            modelVersionId:
              description: Parent model version ID with prefix `mdv.`.
              pattern: >-
                ^mdv\.[0-9a-f]{8}-[0-9a-f]{4}-[7][0-9a-f]{3}-[89ab][0-9a-f]{3}-[0-9a-f]{12}$
              type: string
            type:
              const: model_version
              description: >-
                Parent source: `base_model` for a catalog model or
                `model_version` for a published project version.
              type: string
          required:
            - type
            - modelVersionId
          type: object
    ModelId:
      description: Model ID with prefix `mdl.`.
      pattern: >-
        ^mdl\.[0-9a-f]{8}-[0-9a-f]{4}-[7][0-9a-f]{3}-[89ab][0-9a-f]{3}-[0-9a-f]{12}$
      type: string
  headers:
    RateLimit-Limit:
      description: The maximum number of requests allowed in the current window.
      schema:
        type: integer
    RateLimit-Policy:
      description: The rate limit policy (e.g., "60;w=60").
      schema:
        type: string
    RateLimit-Remaining:
      description: The number of requests remaining in the current window.
      schema:
        type: integer
    RateLimit-Reset:
      description: The number of seconds until the current window resets.
      schema:
        type: integer
    X-Request-Id:
      description: >-
        The request id: the X-Request-Id you sent when it is 1-128 characters of
        letters, digits, ".", "_" or "-", otherwise a generated UUID. Present on
        every response, including errors; quote it when reporting a problem.
      schema:
        type: string
  securitySchemes:
    apiKeyAuth:
      description: >-
        Enter `ApiKey <your-api-key>` in Authorization, including the `ApiKey `
        prefix. In cURL and Python samples, `<api-key>` means this full value.
        The TypeScript SDK adds the prefix for you.
      in: header
      name: Authorization
      type: apiKey
    scopedTokenAuth:
      description: >-
        Enter the project-scoped token as `pst_...` in X-Scoped-Token, without
        an `ApiKey ` prefix. Create a token with POST
        /projects/{projectId}/tokens.
      in: header
      name: X-Scoped-Token
      type: apiKey

````

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