Qwen3-VL Document RAG 2026: ColPali & Vespa Hands-On
Learn visual document RAG with ColPali and Qwen3-VL in 2026: hands-on Vespa setup, late-interaction embeddings, and why OCR chunking pipelines fail.
Chapter 1: Why Text Extraction Broke: The 2026 Case for Visual Document RAG For about four years, the standard answer to "how do I let an LLM answer questions about my PDFs?" was the same everywhere: run the file through an OCR or layout parser, chop the resulting text into 500-token chunks, embed the chunks, stuff the top matches into a prompt. That pipeline shipped in every tutorial, every framework quickstart, every vendor demo. It also quietly failed on a large fraction of the documents that businesses actually care about, and by 2026 enough teams had been burned that the...