# Anthropic Provider (Default)

Direct connection to Anthropic's Claude API.

## Configuration

Set environment variable:
```bash
export ANTHROPIC_API_KEY=sk-ant-...
```

## Models Available

| Model | ID | Use Case |
|-------|-----|----------|
| Claude Opus 4.5 | claude-opus-4-5-20251101 | Complex reasoning, analysis |
| Claude Sonnet 4 | claude-sonnet-4-20250514 | Balanced speed/quality |
| Claude Haiku 3.5 | claude-3-5-haiku-20241022 | Fast, cost-effective |

## No Additional Setup Required

This is the default provider. Simply set ANTHROPIC_API_KEY.
