Models

Prices come from OpenRouter directly and are refreshed daily. They are what the model costs — we add nothing on top, on any plan.

Every model

In / M and Out / M are dollars per million tokens. A model priced Free is free at the gateway too; those are usually rate-limited by the provider rather than by us. — means the model is unpriced in the catalogue, which for the small tier is treated as "not cheap", not as "free".

Sort by clicking a column. The filter matches the model id and its display name.

Try one

Pick a model and a client, and this is the code:

import OpenAI from "openai";

// Both variables are in .env already — the SDK reads them itself.
const client = new OpenAI();

const response = await client.chat.completions.create({
  model: "anthropic/claude-opus-5",
  messages: [{ role: "user", content: "Draft a status report from these logs." }],
});

console.log(response.choices[0]?.message.content);

Every client here reaches every model — the gateway serves the whole catalogue over both its OpenAI-compatible and its Anthropic-compatible surface, so the OpenAI SDK calls a Claude model and the Anthropic SDK calls a Gemini one. What the choice changes is which variables the snippet reads, which the panel names under each one.

Reading it as an agent

The same catalogue is available as JSON, without the page:

curl https://extraorbital.dev/api/gateway/models

{
  "models": [
    {
      "id": "anthropic/claude-opus-5",
      "name": "Anthropic: Claude Opus 5",
      "author": "anthropic",
      "contextLength": 200000,
      "promptPerM": 5,
      "completionPerM": 25,
      "modalities": ["text", "image"],
      "reasoning": true
    }
  ],
  "count": 420,
  "fetchedAt": "2026-09-01T00:00:00.000Z",
  "stale": false
}

stale: true means the live fetch failed and you are reading a committed snapshot — the ids are still right, the prices may not be.

The small tier

--model-tier small restricts a key to the cheap end of this list rather than to a fixed set of names. The ceiling is resolved against the live catalogue when the key is minted, so a model that ships next week and costs a tenth of a cent is included without anything being redeployed.

This is what a Prototype key gets, and it is why the $5.00 allowance is a real allowance rather than a teaser.

Next

• SDK recipes — every client in full
• Providers and keys — which SDKs reach which models