API

Models

The catalog is public. Agents can discover models and prices before they spend anything.

List models

curl

curl https://arcrouter.co/models

response

{
  "data": [
    {
      "id": "gpt-oss-120b",
      "provider": "arcrouter",
      "type": "chat",
      "modality": "text",
      "context_length": 131072,
      "min_output_tokens": 512,
      "input_usdc_per_mtok": 0.38,
      "output_usdc_per_mtok": 1.5,
      "released_at": "2025-08-05"
    }
  ]
}

GET /v1/models returns the same entries in the OpenAI list shape, so SDK model pickers work.

Fields

type: chat, embeddings or decisions, which decides the endpoint. Decision models are covered in Decisions (Jev).
input_usdc_per_mtok / output_usdc_per_mtok: the posted price per 1M tokens. This is what you are charged.
context_length: the window. It also bounds the pay-per-call ceiling.
min_output_tokens: reasoning models think before they answer. A max_tokens below this is rejected up front instead of billed for an empty reply.

Embeddings

curl

curl https://arcrouter.co/v1/embeddings \
  -H "Authorization: Bearer $ARCROUTER_KEY" \
  -H "content-type: application/json" \
  -d '{"model":"text-embedding-3-small","input":["first text","second text"]}'

Browse the live list with prices on the Models page.

NextDecisions (Jev) →