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DeepSeek V4.1 Flash: price, context, what it takes

DeepSeek V4.1 Flash from DeepSeek, as OpenRouter's public list names it: deepseek/deepseek-v4.1-flash. Read 2026-11-06.

Prices are OpenRouter's, in US dollars. For most models that is the vendor's own list price; a vendor selling direct can differ.

The modeldeepseek/deepseek-v4.1-flash
  • Input, per 1M tokens$0.0510
  • Output, per 1M tokens$0.567
  • Cached input, per 1M tokens$0.0180
  • Context window1,048,576 tokens
  • Longest answer943,718 tokens
  • Takestext, images
  • Givestext
  • Acceptsreasoning, JSON schema, tools
  • Released2026-09-10
  • In the list since2026-10-28
  • Knows tool prices20.6% right, 28% wrong (2026-10-27)
Price over time
  • 2026-11-06 - 2026-11-06: input $0.0510, output $0.567
  • 2026-11-04 - 2026-11-06: input $0.0450, output $0.500
  • 2026-11-03 - 2026-11-03: input $0.0450, output $0.500
  • 2026-10-29 - 2026-11-03: input $0.0450, output $0.500
  • 2026-10-28 - 2026-10-28: input $0.140, output $0.420
Other DeepSeek models
ModelInput, 1MOutput, 1MContext
DeepSeek V3$0.320$0.890164K
DeepSeek V3 0324$0.290$1.14164K
DeepSeek V3.1$0.250$0.950164K
R1 0528$0.500$2.15164K
DeepSeek V3.1 Terminus$0.270$1.00164K
DeepSeek V3.2$0.260$0.380164K
DeepSeek V3.2 Exp$0.270$0.410164K
DeepSeek V4.1 Flash 1017$0.300$1.201.05M
DeepSeek V4 Flash 0423$0.0910$0.1821.05M
DeepSeek V4 Flash 0731$0.0590$0.3001.05M
DeepSeek V4 Flash Vision Exp$0.440$1.321.05M
DeepSeek V4 Pro 0423$1.60$3.201.05M

All modelsJSON