> ## Documentation Index
> Fetch the complete documentation index at: https://docs.chipipay.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Models & Pricing

> 8 AI models across 3 providers. Pay per token with USDC credits.

## Available models

All prices are per 1 million tokens (USD). Cost = input tokens + output tokens at the rates below.

<Note>
  Pricing is always available live at [`GET /ai/models`](https://api.chipipay.com/v1/ai/models).
  If there is ever a discrepancy between this page and the API response, the API is the source of truth.
</Note>

| Model ID       | Provider  | Display Name      | Input / 1M tokens | Output / 1M tokens | Best for                                     |
| -------------- | --------- | ----------------- | ----------------- | ------------------ | -------------------------------------------- |
| `gpt-4o-mini`  | OpenAI    | GPT-4o Mini       | \$0.21            | \$0.84             | Cheapest. Simple tasks, high volume.         |
| `gemini-flash` | Google    | Gemini 2.5 Flash  | \$0.42            | \$3.50             | Fast, good quality, low cost.                |
| `gpt-4.1-mini` | OpenAI    | GPT-4.1 Mini      | \$0.56            | \$2.24             | Better reasoning at low cost.                |
| `haiku`        | Anthropic | Claude Haiku 4.5  | \$1.40            | \$7.00             | **Default.** Best reasoning-to-cost ratio.   |
| `gemini-pro`   | Google    | Gemini 2.5 Pro    | \$1.75            | \$14.00            | Strong reasoning. **2 RPM** free-tier limit. |
| `gpt-4.1`      | OpenAI    | GPT-4.1           | \$2.80            | \$11.20            | High quality, fast.                          |
| `gpt-4o`       | OpenAI    | GPT-4o            | \$3.50            | \$14.00            | Multimodal, proven.                          |
| `sonnet`       | Anthropic | Claude Sonnet 4.5 | \$4.20            | \$21.00            | Premium. Best quality, highest cost.         |

<Tip>
  Start with `gpt-4o-mini` for prototyping (\$0.21/1M input). Switch to `haiku` or `sonnet` for production quality.
</Tip>

## Typical costs per call

| Use case                | Model         | Tokens  | Cost                                              |
| ----------------------- | ------------- | ------- | ------------------------------------------------- |
| Short chat reply        | `gpt-4o-mini` | \~500   | \~\$0.0003                                        |
| DeFi portfolio decision | `haiku`       | \~500   | \~\$0.004                                         |
| Detailed analysis       | `sonnet`      | \~1,000 | \~\$0.013                                         |
| Swap calldata builder   | `/execute`    | N/A     | \$0.002 flat                                      |
| Token prices            | `/prices`     | N/A     | **Free**                                          |
| Market signals          | `/signals`    | N/A     | **Free** up to 100/mo per org, then \$0.0005/call |

## Rate limits

| Model          | Provider RPM   | Max output tokens |
| -------------- | -------------- | ----------------- |
| `gpt-4o-mini`  | 30,000         | 16,384            |
| `gpt-4.1-mini` | 10,000         | 16,384            |
| `gpt-4.1`      | 10,000         | 32,768            |
| `gpt-4o`       | 10,000         | 16,384            |
| `haiku`        | 4,000          | 8,192             |
| `sonnet`       | 1,000          | 8,192             |
| `gemini-flash` | 15 (free tier) | 8,192             |
| `gemini-pro`   | 2 (free tier)  | 8,192             |

Your org's API key also has a per-key rate limit (default: 1,000 RPM). The effective limit is the lower of the two.

<Note>
  Google Gemini models are on the free tier (low RPM). For production use at scale, prefer OpenAI or Anthropic models. `gemini-pro` in particular is rate-limited to **2 RPM** — fine for occasional reasoning calls, not production traffic.
</Note>

## Credits

Buy credit packs by sending USDC on Starknet:

| Pack  | Price    |
| ----- | -------- |
| \$2   | 2 USDC   |
| \$5   | 5 USDC   |
| \$25  | 25 USDC  |
| \$50  | 50 USDC  |
| \$100 | 100 USDC |

Buy at [dashboard.chipipay.com/configure/billing](https://dashboard.chipipay.com). Credits are USD-denominated and deducted per API call. Check your balance in the dashboard billing tab.

## OpenAPI spec

The full API spec is available at [`/v1/openapi.json`](https://api.chipipay.com/v1/openapi.json) — filtered to AI endpoints only.