---
title: "DeepSeek V4.1 Flash"
description: "DeepSeek's open-weights multimodal MoE model with a 1M-token context window."
canonical: "https://vetted.tools/models/deepseek-v4-1-flash"
source: "https://vetted.tools/models/deepseek-v4-1-flash.md"
---

# DeepSeek V4.1 Flash

DeepSeek's open-weights multimodal MoE model with a 1M-token context window.

Source: https://vetted.tools/models/deepseek-v4-1-flash

- Slug: `deepseek-v4-1-flash`
- By [DeepSeek](https://vetted.tools/companies/deepseek) ([deepseek.com](https://www.deepseek.com), checked 2026-09-26)
- Official page: [https://www.deepseek.com](https://www.deepseek.com)

## Facts

- License: mit ([Hugging Face](https://huggingface.co/deepseek-ai/DeepSeek-V4.1-Flash), checked 2026-09-25)
- Capabilities: Reasoning, Tool use, Implicit caching, Vision, Structured output ([Vercel AI Gateway](https://ai-gateway.vercel.sh/v1/models), checked 2026-09-25)
- Context window: 1.05M tokens (1,048,576) ([Vercel AI Gateway](https://ai-gateway.vercel.sh/v1/models), checked 2026-09-25)
- Gateway ID: deepseek/deepseek-v4.1-flash ([Vercel AI Gateway](https://ai-gateway.vercel.sh/v1/models), checked 2026-09-25)
- Input: $0.30 per 1M tokens ([Vercel AI Gateway](https://ai-gateway.vercel.sh/v1/models), checked 2026-09-25)
- Max output: 33K tokens (32,768) ([Vercel AI Gateway](https://ai-gateway.vercel.sh/v1/models), checked 2026-09-25)
- Takes: Text, image ([Vercel AI Gateway](https://ai-gateway.vercel.sh/v1/models), checked 2026-09-25)
- Returns: Text ([Vercel AI Gateway](https://ai-gateway.vercel.sh/v1/models), checked 2026-09-25)
- No training on prompts: Offered by some providers on the Vercel AI Gateway, when you turn it on ([Vercel AI Gateway](https://ai-gateway.vercel.sh/v1/models), checked 2026-09-25)
- Output: $1.20 per 1M tokens ([Vercel AI Gateway](https://ai-gateway.vercel.sh/v1/models), checked 2026-09-25)
- Released: Sep 8, 2026 ([Vercel AI Gateway](https://ai-gateway.vercel.sh/v1/models), checked 2026-09-25)
- Type: Language ([Vercel AI Gateway](https://ai-gateway.vercel.sh/v1/models), checked 2026-09-25)
- Zero data retention: Available on a paid Vercel plan through the AI Gateway, from some providers on it (you turn it on) ([Vercel AI Gateway](https://ai-gateway.vercel.sh/v1/models), checked 2026-09-25)

## Usage

- 606,028 downloads on [Hugging Face](https://huggingface.co/deepseek-ai/DeepSeek-V4.1-Flash) over the 30 days to 2026-09-25.
- 598,910,903 requests and 41,413,372,939,368 tokens on [OpenRouter](https://openrouter.ai/deepseek/deepseek-v4.1-flash) over the 16 days to 2026-09-25.

## Elsewhere on this site

- Home: https://vetted.tools/index.md
- Use cases: https://vetted.tools/use-cases.md
- Tools: https://vetted.tools/tools.md
- The brief: https://vetted.tools/brief.md
- Assessment: https://vetted.tools/assessment.md
- Site summary for agents: https://vetted.tools/llms.txt
- Every published page in one file: https://vetted.tools/llms-full.txt
- Every URL the site publishes: https://vetted.tools/sitemap.xml