# DeepSeek V4.1 Flash: AI model fact sheet

- **Provider:** deepseek
- **Released:** 2026-09-10
- **Context window:** 1,048,576 tokens
- **API pricing:** $0.15 / 1M input, $0.60 / 1M output
- **OpenRouter ID:** deepseek/deepseek-v4.1-flash
- **Capabilities:** conversation, reasoning, tool-use

DeepSeek V4.1 Flash supports text and image inputs with text output and a 1M context window. OpenRouter token pricing varies by provider and time of use.

Source: real side-by-side outputs, pricing and specs at https://rival.tips/models/deepseek-v4.1-flash