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LONG MEMORY · DeepSeek

DeepSeek V4.1 Flash

DeepSeek V4.1 Flash is a reasoning, tool-using model from DeepSeek in the DeepSeek family, living in Snow Country (long memory). It reads text and images and writes text, with a 1.05M-token context window and up to 944K tokens of output. On OpenRouter it costs $0.020 per million input tokens and $1.00 per million output tokens.

See DeepSeek V4.1 Flash in 3DOpen in the WorktableView on OpenRouter

Specifications

Provider
DeepSeek
Family
DeepSeek
Province
Snow Country
Context window
1.05M tokens
Maximum output
944K tokens
Input / 1M tokens
$0.020
Output / 1M tokens
$1.00
Accepts
text, images
Produces
text
Reasoning
Yes
Tool use
Yes
Added to OpenRouter
2026-09-10
Model ID
deepseek/deepseek-v4.1-flash
Price history
—All recorded prices

From the 2026-10-24 catalog snapshot. Prices are US dollars per million tokens.

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