{"slug": "when-python-isnt-fast-enough-building-a-token-aware-rag-chunker-in-rust", "title": "When Python Isn’t Fast Enough: Building a Token-Aware RAG Chunker in Rust", "summary": "A developer built a token-aware RAG chunker in Rust after finding that naive character-count splitting corrupts embeddings and Python hits a parallelism ceiling. The Rust extension improves performance for AI applications.", "body_md": "How naive character-count splitting silently corrupts your embeddings, why Python hits a parallelism ceiling, and how a Rust extension…\nContinue reading on Towards AI »", "url": "https://wpnews.pro/news/when-python-isnt-fast-enough-building-a-token-aware-rag-chunker-in-rust", "canonical_source": "https://pub.towardsai.net/when-python-isnt-fast-enough-building-a-token-aware-rag-chunker-in-rust-6d3a93069367?source=rss----98111c9905da---4", "published_at": "2026-06-30 15:01:03+00:00", "updated_at": "2026-06-30 15:25:27.412960+00:00", "lang": "en", "topics": ["ai-tools", "developer-tools"], "entities": ["Rust", "Python", "Towards AI"], "alternates": {"html": "https://wpnews.pro/news/when-python-isnt-fast-enough-building-a-token-aware-rag-chunker-in-rust", "markdown": "https://wpnews.pro/news/when-python-isnt-fast-enough-building-a-token-aware-rag-chunker-in-rust.md", "text": "https://wpnews.pro/news/when-python-isnt-fast-enough-building-a-token-aware-rag-chunker-in-rust.txt", "jsonld": "https://wpnews.pro/news/when-python-isnt-fast-enough-building-a-token-aware-rag-chunker-in-rust.jsonld"}}