execution, causing URLs to be processed sequentially instead of in parallel.
Changes:
- Added aperform_completion_with_backoff() using litellm.acompletion for async LLM calls
- Implemented arun() method in ExtractionStrategy base class with thread pool fallback
- Created async arun() and aextract() methods in LLMExtractionStrategy using asyncio.gather
- Updated AsyncWebCrawler.arun() to detect and use arun() when available
- Added comprehensive test suite to verify parallel execution
Impact:
- LLM extraction now runs truly in parallel across multiple URLs
- Significant performance improvement for multi-URL crawls with LLM strategies
- Backward compatible - existing extraction strategies continue to work
- No breaking changes to public API
Technical details:
- Uses litellm.acompletion for non-blocking LLM calls
- Leverages asyncio.gather for concurrent chunk processing
- Maintains backward compatibility via asyncio.to_thread fallback
- Works seamlessly with MemoryAdaptiveDispatcher and other dispatchers
