List models

List the catalog or fetch one model, with prices and capabilities.

GET/v1/models

Returns every active model, of every type. Read architecture.output_modalities to tell text models from image and embeddings models. No key is needed. Claude Code reads this endpoint for model discovery, with ?limit=1000.

GET/v1/models/{id}

Returns one model — the object itself, not the list wrapper. Ids contain a slash, so write it as part of the path: /v1/models/anthropic/claude-haiku-4.5. An unknown id returns 404 model_not_found.

Ids can also end in :incognito. Those models run only on Phala's confidential-computing hardware, at Phala's price, and carry an incognito object: { "provider": "Phala", "zdr": true, "verification": "provider_reported" }. See Incognito.

Ids ending in :overdrive run on the one provider each model is pinned to, at that endpoint's price, with no fallback. They carry an overdrive object naming the provider, fallback: false and a dated observed speed. See Overdrive.

Send a request

curl https://deference.si/v1/models

import requests

models = requests.get("https://deference.si/v1/models").json()["data"]
print([model["id"] for model in models][:5])

const response = await fetch("https://deference.si/v1/models");
const { data } = await response.json();
console.log(data.slice(0, 5).map((model: { id: string }) => model.id));

Response

{
  "object": "list",
  "data": [
    {
      "id": "anthropic/claude-sonnet-5.5",
      "object": "model",
      "created": 1790618686,
      "owned_by": "anthropic",
      "display_name": "Anthropic: Claude Sonnet 5.5",
      "name": "Anthropic: Claude Sonnet 5.5",
      "description": "Claude Sonnet 5.5 is Anthropic's Sonnet-class model for well-scoped everyday work, succeeding Claude Sonnet 5 as a direct upgrade. It is especially strong at building features, fixing bugs, and producing...",
      "context_length": 1000000,
      "max_output_tokens": 128000,
      "architecture": { "input_modalities": ["text", "image", "file"], "output_modalities": ["text"] },
      "pricing": {
        "prompt": "0.0000021",
        "completion": "0.0000105",
        "input_cache_read": "0.000000105",
        "input_cache_write": "0.000002625",
        "request": "0",
        "image": "0",
        "image_output": "0"
      },
      "supported_parameters": ["include_reasoning", "max_completion_tokens", "max_tokens", "reasoning", "reasoning_effort", "response_format", "stop", "structured_outputs", "tool_choice", "tools", "verbosity"]
    }
  ],
  "has_more": false,
  "first_id": "anthropic/claude-sonnet-5.5",
  "last_id": "anthropic/claude-sonnet-5.5"
}

Fields

idstring: The id to send as model.
display_namestring: A readable name.
namestring: The same name again, under OpenRouter's field.
descriptionstring: What the model is for.
context_lengthinteger: Context window in tokens.
max_output_tokensinteger | null: The largest output the model allows, or null when the model has no output cap — the case for embedding models.
architectureobject: input_modalities and output_modalities.
pricingobject: USD per token as strings: prompt, completion, input_cache_read, input_cache_write, image_output. image_output is the price per output image token. request and image are USD per request and per input image.
supported_parametersarray: Request parameters the model accepts.