# Model

Information about an AI model available on OpenRouter


## Fields

| Field                                                                                                                                             | Type                                                                                                                                              | Required                                                                                                                                          | Description                                                                                                                                       | Example                                                                                                                                           |
| ------------------------------------------------------------------------------------------------------------------------------------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------- |
| `architecture`                                                                                                                                    | [components.ModelArchitecture](../components/modelarchitecture.md)                                                                                | :heavy_check_mark:                                                                                                                                | Model architecture information                                                                                                                    | {<br/>"input_modalities": [<br/>"text"<br/>],<br/>"instruct_type": "chatml",<br/>"modality": "text-\u003etext",<br/>"output_modalities": [<br/>"text"<br/>],<br/>"tokenizer": "GPT"<br/>} |
| `canonical_slug`                                                                                                                                  | *str*                                                                                                                                             | :heavy_check_mark:                                                                                                                                | Canonical slug for the model                                                                                                                      | openai/gpt-4                                                                                                                                      |
| `context_length`                                                                                                                                  | *Nullable[int]*                                                                                                                                   | :heavy_check_mark:                                                                                                                                | Maximum context length in tokens                                                                                                                  | 8192                                                                                                                                              |
| `created`                                                                                                                                         | *int*                                                                                                                                             | :heavy_check_mark:                                                                                                                                | Unix timestamp of when the model was created                                                                                                      | 1692901234                                                                                                                                        |
| `default_parameters`                                                                                                                              | [Nullable[components.DefaultParameters]](../components/defaultparameters.md)                                                                      | :heavy_check_mark:                                                                                                                                | Default parameters for this model                                                                                                                 | {<br/>"frequency_penalty": 0,<br/>"presence_penalty": 0,<br/>"repetition_penalty": 1,<br/>"temperature": 0.7,<br/>"top_k": 0,<br/>"top_p": 0.9<br/>} |
| `description`                                                                                                                                     | *Optional[str]*                                                                                                                                   | :heavy_minus_sign:                                                                                                                                | Description of the model                                                                                                                          | GPT-4 is a large multimodal model that can solve difficult problems with greater accuracy.                                                        |
| `expiration_date`                                                                                                                                 | *OptionalNullable[str]*                                                                                                                           | :heavy_minus_sign:                                                                                                                                | The date after which the model may be removed. ISO 8601 date string (YYYY-MM-DD) or null if no expiration.                                        | 2025-06-01                                                                                                                                        |
| `hugging_face_id`                                                                                                                                 | *OptionalNullable[str]*                                                                                                                           | :heavy_minus_sign:                                                                                                                                | Hugging Face model identifier, if applicable                                                                                                      | microsoft/DialoGPT-medium                                                                                                                         |
| `id`                                                                                                                                              | *str*                                                                                                                                             | :heavy_check_mark:                                                                                                                                | Unique identifier for the model                                                                                                                   | openai/gpt-4                                                                                                                                      |
| `knowledge_cutoff`                                                                                                                                | *OptionalNullable[str]*                                                                                                                           | :heavy_minus_sign:                                                                                                                                | The date up to which the model was trained on data. ISO 8601 date string (YYYY-MM-DD) or null if unknown.                                         | 2024-10-01                                                                                                                                        |
| `links`                                                                                                                                           | [components.ModelLinks](../components/modellinks.md)                                                                                              | :heavy_check_mark:                                                                                                                                | Related API endpoints and resources for this model.                                                                                               | {<br/>"details": "/api/v1/models/openai/gpt-5.4/endpoints"<br/>}                                                                                  |
| `name`                                                                                                                                            | *str*                                                                                                                                             | :heavy_check_mark:                                                                                                                                | Display name of the model                                                                                                                         | GPT-4                                                                                                                                             |
| `per_request_limits`                                                                                                                              | [Nullable[components.PerRequestLimits]](../components/perrequestlimits.md)                                                                        | :heavy_check_mark:                                                                                                                                | Per-request token limits                                                                                                                          | {<br/>"completion_tokens": 1000,<br/>"prompt_tokens": 1000<br/>}                                                                                  |
| `pricing`                                                                                                                                         | [components.PublicPricing](../components/publicpricing.md)                                                                                        | :heavy_check_mark:                                                                                                                                | Pricing information for the model                                                                                                                 | {<br/>"completion": "0.00006",<br/>"image": "0",<br/>"prompt": "0.00003",<br/>"request": "0"<br/>}                                                |
| `supported_parameters`                                                                                                                            | List[[components.Parameter](../components/parameter.md)]                                                                                          | :heavy_check_mark:                                                                                                                                | List of supported parameters for this model                                                                                                       |                                                                                                                                                   |
| `top_provider`                                                                                                                                    | [components.TopProviderInfo](../components/topproviderinfo.md)                                                                                    | :heavy_check_mark:                                                                                                                                | Information about the top provider for this model                                                                                                 | {<br/>"context_length": 8192,<br/>"is_moderated": true,<br/>"max_completion_tokens": 4096<br/>}                                                   |