> ## Documentation Index > Fetch the complete documentation index at: https://docs.siray.ai/llms.txt > Use this file to discover all available pages before exploring further. # DeepSeek R1 > DeepSeek AI's R1 is a powerful Reasoning Model (MoE, 671B params) utilizing RL to excel in complex, step-by-step problem-solving, math, and coding tasks. ### Model Use Cases DeepSeek R1 is a research-focused model excelling at retrieval and reasoning. Trained on open data with self-supervision, it supports QA, text generation, maintains conversation consistency, and is useful for R\&D, academic experiments, and industrial applications. ### Key Features * **Retrieval-Augmented Generation:** Dynamic fact-checking and source attribution ensures verifiable, grounded outputs * **Open-Source Training:** Trained on Common Crawl, academic papers enabling full reproducibility and transparency * **128K Context Window:** Extended memory maintains coherence across long academic discussions * **Research Applications:** Optimized for scientific Q\&A, literature review, explainable reasoning traces