AI model · DeepSeek
DeepSeek V4.1 Flash
Model ID: deepseek/deepseek-v4.1-flash
- Input
- $0.30 per 1M tokens
- Output
- $1.20 per 1M tokens
- Context
- 1M tokens at once
- Max output
- 944K tokens per reply
- Released
- 10 Sep 2026 DeepSeek
What it can do
- YesReasoning
- YesTool calling
- YesImage input
- YesOpen weights
- NoFree to use
Takes text, image; gives text.
How its listing describes it
DeepSeek V4.1 Flash is a sparse mixture-of-experts model from DeepSeek, and the first built on the company's Causal Encoder-Decoder (CED) architecture. It activates 8B parameters on input and 16B on...
Sources
- DeepSeek: DeepSeek V4.1 Flash on OpenRouter — read 2 Oct 2026