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DeepSeek V4.1 Flash 1017

by DeepSeek

DeepSeek V4.1 Flash 1017 accepts text and images, supports tool calling and optional reasoning, and serves a 1,048,576-token context window. This identifier selects the 1017 checkpoint. Prompt cache reuse can improve throughput when coding sessions share context.


Best for: Coding agents and document tasks with long context.
1M context
  • Text
  • Reasoning
  • Tool use
  • Image input
  • Vision
Model weights
deepseek/deepseek-v4.1-flash-1017Try it in the playground