# DeepSeek V4 Flash

> DeepSeek V4 Flash, a family of models by DeepSeek, listed from OpenRouter. Indexed, not reviewed: facts and our own checks, no score or ranking. DeepSeek V4.1 Flash is a sparse mixture-of-experts model from DeepSeek, and the first built on the company's Causal Encoder-Decoder…

- Canonical: https://www.anchorterminal.com/tools/deepseek-v4-flash
- Markdown: https://www.anchorterminal.com/tools/deepseek-v4-flash.md (~600 tokens)
- Slim: https://www.anchorterminal.com/tools/deepseek-v4-flash.min.md (~530 tokens, same facts, less prose, for token-sensitive contexts)
- JSON: https://www.anchorterminal.com/tools/deepseek-v4-flash.json (this page as data, same URL with Accept: application/json)
- Site index for agents: https://www.anchorterminal.com/llms.txt (full text: https://www.anchorterminal.com/llms-full.txt)
- API: https://www.anchorterminal.com/api/v1/index.json
- Updated: 2026-10-05

# DeepSeek V4 Flash

> Indexed, not reviewed: facts from OpenRouter and our own checks. No score, grade or rank, and not in the rankings until the panel reviews it. How the index works: https://www.anchorterminal.com/indexed/

- Kind: model family, by DeepSeek
- Category: Model APIs & inference (https://www.anchorterminal.com/categories/inference.md)
- Listed because: OpenRouter lists it, with prices from the providers that serve it.
- What OpenRouter says: 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...
- Some of these models are reviewed as part of DeepSeek API: https://www.anchorterminal.com/tools/deepseek-api.md

## Models (3)

| Model | OpenRouter id | Released | Context | Input $/1M | Output $/1M | Supports |
| --- | --- | --- | --- | --- | --- | --- |
| DeepSeek V4.1 Flash | `deepseek/deepseek-v4.1-flash` | 2026-09 | 1.05M | $0.003 | $2.40 | tools, structured output, reasoning, caching, image |
| DeepSeek V4 Flash 0731 | `deepseek/deepseek-v4-flash-0731` | 2026-07 | 1.05M | $0.0152 | $1.28 | tools, structured output, reasoning, caching |
| DeepSeek V4 Flash 0423 | `deepseek/deepseek-v4-flash` | 2026-04 | 1.05M | $0.0224 | $1.28 | tools, structured output, reasoning, caching |

Prices and limits as OpenRouter lists them; a provider's own price can differ.

- JSON: https://www.anchorterminal.com/api/v1/tools/deepseek-v4-flash.json
- Being indexed says nothing about quality, and nobody can pay for it. Ask for a review: https://www.anchorterminal.com/builders/#claiming