Overview

NVIDIA’s DeepSeek-V4.1-Flash-1017-NVFP4 is a quantized, multimodal MoE language model intended for deployment in agent systems, chatbots, RAG, and other AI applications. It is based on DeepSeek-V4.1-Flash-1017 and uses a Causal Encoder-Decoder architecture with Compressed Sparse Attention 2. Maintainer: nvidia. The stated license is MIT; the source describes commercial and non-commercial use.

Best use cases

Text and image input with text generation; chatbot and RAG applications; AI-agent deployments, including tool calling through the documented vLLM configuration. Evaluation covers scientific reasoning, long-context recall, scientific coding, instruction following, visual understanding, and terminal-based agent tasks.

Limitations

The base model may produce biased or toxic responses, inaccuracies, omissions, or irrelevant and redundant text. This checkpoint requires a vLLM build with MXFP4 Engram support; stock vLLM images cannot load its Engram tables, and SGLang has not been validated.…