LlamaIndex launches OpenDocRouter, one API for frontier and open document parsers with unified Markdown and layout grounding

What changed

LlamaIndex launched OpenDocRouter on October 7 as a unified document-to-Markdown API spanning frontier and open-source parsing models. The initial catalog includes Claude Opus 5.5, Gemini 3/3.8 Flash, GPT-5.6 Terra and GPT-6 Luna alongside open models such as MinerU2.5-Pro and PaddleOCR-VL-1.6. Each model runs through a versioned recipe and is benchmarked on ParseBench for quality and cost. The API accepts PDF, PNG, JPEG or URLs, supports synchronous jobs up to 50 pages and inputs up to 500 pages or 50MB, and can apply a common grounding engine for reading order, bounding boxes and standardized layout classes.