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

# Models

> Model identifiers and pricing for all supported models.

## Model identifiers

Use these exact strings as the `model` parameter in your API requests.

### Tier 1: Flagship

| Model               | Provider  | Input / 1M | Output / 1M | Best for             |
| ------------------- | --------- | ---------- | ----------- | -------------------- |
| `gpt-4o`            | OpenAI    | \$2.50     | \$10.00     | General purpose      |
| `claude-sonnet-4-6` | Anthropic | \$3.00     | \$15.00     | Coding, analysis     |
| `gemini-2.5-pro`    | Google    | \$1.25     | \$10.00     | Long context         |
| `gpt-4.1`           | OpenAI    | \$2.00     | \$8.00      | Coding, instructions |

### Tier 2: Cost-efficient

| Model                       | Provider  | Input / 1M | Output / 1M | Best for    |
| --------------------------- | --------- | ---------- | ----------- | ----------- |
| `gpt-4o-mini`               | OpenAI    | \$0.15     | \$0.60      | High volume |
| `gpt-4.1-mini`              | OpenAI    | \$0.40     | \$1.60      | Balanced    |
| `claude-haiku-4-5-20251001` | Anthropic | \$0.80     | \$4.00      | Fast tasks  |
| `gemini-2.5-flash`          | Google    | \$0.15     | \$0.60      | Speed       |

### Tier 3: Budget

| Model                         | Provider | Input / 1M | Output / 1M | Best for       |
| ----------------------------- | -------- | ---------- | ----------- | -------------- |
| `gpt-4.1-nano`                | OpenAI   | \$0.10     | \$0.40      | Classification |
| `meta-llama/llama-4-scout`    | Meta     | \$0.15     | \$0.40      | Open source    |
| `meta-llama/llama-4-maverick` | Meta     | \$0.20     | \$0.60      | Open source    |

### Tier 4: Reasoning

| Model                            | Provider  | Input / 1M | Output / 1M | Best for          |
| -------------------------------- | --------- | ---------- | ----------- | ----------------- |
| `claude-opus-4-6`                | Anthropic | \$15.00    | \$75.00     | Complex reasoning |
| `gpt-4-turbo`                    | OpenAI    | \$10.00    | \$30.00     | Legacy            |
| `deepseek/deepseek-r1`           | DeepSeek  | \$0.50     | \$2.00      | Chain-of-thought  |
| `deepseek/deepseek-chat-v3-0324` | DeepSeek  | \$0.50     | \$1.50      | General           |

## Unknown models

If you use a model not in our pricing table, we apply a default rate of $1.00/1M input and $3.00/1M output for savings calculations. The request still works — it's routed through OpenRouter normally.