OpenRouter Model Listing | EmpirioLabs AI Docs

Use GET /v1/models?format=openrouter when you need a denser per-model listing with exact per-token prices, exact context length in tokens, quantization, Hugging Face checkpoint ID, datacenter country codes, and a supported-features enum. The plain GET /v1/models endpoint continues to return the standard EmpirioLabs catalog shape.

The OpenRouter view returns only models flagged for this listing and includes the following fields per model: id, hugging_face_id, name, created, input_modalities, output_modalities, quantization, context_length, max_output_length, pricing, supported_sampling_parameters, supported_features, is_ready, openrouter, and datacenters.

curl "https://api.empiriolabs.ai/v1/models?format=openrouter"

Response shape

{
  "data": [
    {
      "id": "qwen3-5-9b",
      "hugging_face_id": "Qwen/Qwen3.5-9B",
      "name": "Qwen3.5 9B",
      "created": 1778976000,
      "input_modalities": ["text", "image", "video"],
      "output_modalities": ["text"],
      "quantization": "fp8",
      "context_length": 262144,
      "max_output_length": 32768,
      "pricing": {
        "prompt": "0.00000009",
        "completion": "0.00000013",
        "image": "0",
        "request": "0",
        "input_cache_read": "0.000000045"
      },
      "supported_sampling_parameters": [
        "temperature",
        "top_p",
        "top_k",
        "min_p",
        "frequency_penalty",
        "presence_penalty",
        "repetition_penalty",
        "stop",
        "seed",
        "max_tokens",
        "logit_bias"
      ],
      "supported_features": [
        "tools",
        "json_mode",
        "structured_outputs",
        "reasoning"
      ],
      "is_ready": true,
      "openrouter": {
        "slug": "qwen/qwen3.5-9b"
      },
      "datacenters": [
        {
          "country_code": "JP"
        }
      ]
    }
  ]
}

Field notes

Field	Meaning
`id`	Model identifier used when calling the API.
`hugging_face_id`	Hugging Face checkpoint identifier when the model is served from Hugging Face weights.
`context_length`	Maximum total context length accepted by the model, in tokens.
`max_output_length`	Maximum generated-token budget allowed for one request.
`pricing`	USD prices as strings, expressed per token unless the field name says otherwise.
`input_cache_read`	Cached input-token price when cached-token accounting is available.
`supported_sampling_parameters`	Sampling controls accepted by the model.
`supported_features`	Higher-level capabilities: `tools`, `json_mode`, `structured_outputs`, `reasoning`, `logprobs`, `web_search`.
`is_ready`	Whether the model should be treated as ready for listing.
`openrouter.slug`	Suggested public slug for this model.
`datacenters[].country_code`	ISO 3166-1 alpha-2 code for the current serving region.