API & Developers

Free, read-only JSON endpoints for live LLM and GenAI pricing data — no API key, no signup.

No API key · No signup

Base URL

https://www.llmrates.ai

Endpoints

GET/api/models

List and filter models with their current prices, paginated.

Parameters: provider, modality, minContext, maxInputPrice, hasCaching, hasBatch, sort, order, page, pageSize, currency

GET/api/models/{slug}

Full detail for one model, including recent price history and related models.

GET/api/providers

All active providers with their model counts.

GET/api/providers/{slug}

One provider and its active model lineup with headline prices.

GET/api/compare

Compare up to 5 models side by side by their stable ids (sid).

Parameters: models (comma-separated sids, max 5), currency

GET/llms.txt

Plain-text summary of the catalog, formatted for LLMs and AI agents.

All query parameters are optional.

Quick start

curl "https://www.llmrates.ai/api/models?provider=openai&sort=inputPrice&order=asc"

Model response shape

{
  "models": [
    {
      "id": number,
      "name": string,
      "slug": string,
      "family": string | null,
      "contextWindow": number | null,
      "maxOutput": number | null,
      "supportsTools": boolean,
      "supportsBatch": boolean,
      "supportsCaching": boolean,
      "deprecatedAt": string | null,        // ISO 8601
      "provider": { "name": string, "slug": string, "providerType": string, "baseUrl": string | null },
      "modalities": string[],               // e.g. ["text", "image"]
      "price": PriceRow | null,             // headline price in the requested currency
      "prices": PriceRow[]                  // every tier / region
    }
  ],
  "pagination": { "page": number, "pageSize": number, "total": number, "totalPages": number }
}

// PriceRow (per 1M tokens unless the field name says otherwise)
{
  "inputPricePerMillion": number | null,
  "outputPricePerMillion": number | null,
  "cachedInputPricePerMillion": number | null,
  "processingTier": "standard" | "batch" | "fast",
  "region": string | null,
  "priceUnit": string,                      // currency the row was sourced in
  "sourceUrl": string | null,
  "verifiedAt": string | null               // ISO 8601
}

Caching & freshness

Every endpoint is edge-cached and refreshed shortly after each price scrape, so responses may be up to a few minutes old. Cache-Control headers are included on every response.

Attribution

The data is free to use. If it helps your project, a link back to LLMRates.ai is appreciated — it keeps the data open and updated.

<a href="https://www.llmrates.ai" target="_blank" rel="noopener">
  LLM &amp; GenAI pricing data by LLMRates.ai
</a>

Please keep request volume reasonable. For high-volume or commercial use, get in touch.