Crawl4AI OpenRouter

Use Crawl4AI when the user explicitly wants Crawl4AI or when a real browser crawl plus optional LLM extraction is the right fit.

Load only the reference file you need:

• Open references/setup.md before first use on a machine or when the environment is failing.
• Open references/recipes.md when you need a concrete pattern for plain markdown crawl, CSS-based extraction, or LLM-based extraction.

Default Operating Assumptions

• Default LLM provider: openrouter/nvidia/nemotron-3-super-120b-a12b:free
• Default API key env var: OPENROUTER_API_KEY
• Default OpenRouter base URL: https://openrouter.ai/api/v1
• Prefer LLMConfig plus LLMExtractionStrategy for schema-based extraction.
• Prefer passing the API token via environment variable, not inline in source.
• Prefer headless=True unless the task requires visual debugging.
• Prefer CacheMode.BYPASS when the user wants fresh content.