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

# Anthropic

> Access Claude models through Splox with transparent pricing

<Card>
  **Anthropic Claude** delivers state-of-the-art language models with:

  * **Advanced reasoning** and analysis
  * **Extended context windows** up to 200K tokens
  * **Prompt caching** for cost optimization
  * **Safety-focused** design and outputs
</Card>

***

## Available Models

### Claude 4.5 Series

Latest Claude models with enhanced capabilities and prompt caching.

| Model                            | Input    | Output    | Cache Read | Cache Write                       | Best For                             |
| -------------------------------- | -------- | --------- | ---------- | --------------------------------- | ------------------------------------ |
| **Claude Opus 4.5 (20251101)**   | \$6.50/M | \$32.50/M | \$0.65/M   | \$8.12/M (5m)<br />\$13.00/M (1h) | Most advanced reasoning and analysis |
| **Claude Sonnet 4.5 (20250929)** | \$3.90/M | \$19.50/M | \$0.39/M   | \$4.88/M (5m)<br />\$7.80/M (1h)  | Balanced performance for production  |
| **Claude Haiku 4.5 (20251001)**  | \$1.30/M | \$6.50/M  | \$0.13/M   | \$1.62/M (5m)<br />\$2.60/M (1h)  | Fast, cost-efficient, high-volume    |

### Claude 4 Series

Previous generation with strong capabilities and caching support.

| Model                          | Input     | Output    | Cache Read | Cache Write                        | Best For                         |
| ------------------------------ | --------- | --------- | ---------- | ---------------------------------- | -------------------------------- |
| **Claude Opus 4.1 (20250805)** | \$19.50/M | \$97.50/M | \$1.95/M   | \$24.38/M (5m)<br />\$39.00/M (1h) | Complex reasoning, deep analysis |
| **Claude Opus 4 (20250514)**   | \$19.50/M | \$97.50/M | \$1.95/M   | \$24.38/M (5m)<br />\$39.00/M (1h) | Research and creative tasks      |
| **Claude Sonnet 4 (20250514)** | \$3.90/M  | \$19.50/M | \$0.39/M   | \$4.88/M (5m)<br />\$7.80/M (1h)   | General purpose production       |

### Claude 3.7 Series

Enhanced 3-series with prompt caching support.

| Model                            | Input    | Output    | Cache Read | Cache Write                      | Best For                     |
| -------------------------------- | -------- | --------- | ---------- | -------------------------------- | ---------------------------- |
| **Claude 3.7 Sonnet (20250219)** | \$3.90/M | \$19.50/M | \$0.39/M   | \$4.88/M (5m)<br />\$7.80/M (1h) | Enhanced Sonnet capabilities |

### Claude 3.5 Series

Production-ready models with strong performance.

| Model                            | Input    | Output    | Best For                |
| -------------------------------- | -------- | --------- | ----------------------- |
| **Claude 3.5 Sonnet (20241022)** | \$3.90/M | \$19.50/M | Latest 3.5 Sonnet       |
| **Claude 3.5 Sonnet (20240620)** | \$3.90/M | \$19.50/M | Stable production       |
| **Claude 3.5 Haiku (20241022)**  | \$1.04/M | \$5.20/M  | Fast, lightweight tasks |

<Info>
  **Prompt caching** significantly reduces costs for repeated content:

  * **Cache Read**: 90% cheaper than standard input
  * **Cache Write (5m)**: Stores content for 5 minutes
  * **Cache Write (1h)**: Stores content for 1 hour
</Info>

***

## Best Practices

### Model Selection

<CardGroup cols={2}>
  <Card title="Use Opus for" icon="crown">
    * Complex research tasks
    * Deep code analysis
    * Creative writing
    * Multi-step reasoning
    * When quality matters most
  </Card>

  <Card title="Use Sonnet for" icon="balance-scale">
    * Production applications
    * Chatbots and assistants
    * Content generation
    * Code generation
    * Balanced speed/quality
  </Card>

  <Card title="Use Haiku for" icon="zap">
    * High-volume tasks
    * Fast responses
    * Simple classification
    * Data extraction
    * Cost-sensitive workloads
  </Card>

  <Card title="Latest Models" icon="sparkles">
    * **Claude 4.5**: Best overall performance
    * **Claude 3.7**: Enhanced 3-series
    * **Dated models**: Stable versions
  </Card>
</CardGroup>

### Prompt Caching

<Card>
  **Optimize costs with prompt caching:**

  * **Use 1-hour caching** for frequently repeated context (e.g., system prompts, documentation)
  * **Use 5-minute caching** for short-lived conversational context
  * **Cache large contexts** (documentation, code repositories) to maximize savings
  * **Structure prompts** with cacheable content first

  **Example savings:**

  * Repeated 50K token system prompt without cache: \$195/1M requests
  * With 1-hour cache: \$32.50/1M requests = **83% savings**
</Card>

### Context Windows

All Claude models support extended context:

* **Claude 4/4.5**: Up to **200K tokens**
* **Claude 3.5/3.7**: Up to **200K tokens**

***

## Support

Need help with Anthropic integration?

<CardGroup cols={2}>
  <Card title="Anthropic Documentation" icon="book" href="https://docs.anthropic.com">
    Official Claude documentation
  </Card>

  <Card title="Anthropic Pricing" icon="dollar-sign" href="https://www.anthropic.com/pricing">
    Official pricing details
  </Card>

  <Card title="Splox Docs" icon="file-text" href="https://docs.splox.io/introduction">
    Browse our guides
  </Card>

  <Card title="Community" icon="users" href="https://community.splox.io">
    Get help from the community
  </Card>
</CardGroup>