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Models › deepseek › DeepSeek: DeepSeek V4.1 Flash

DeepSeek: DeepSeek V4.1 Flash — pricing & benchmarks

By deepseek · Updated 2026-10-24 · Open weights · mitReads imageslong-context / RAGreads images / documentsstep-by-step reasoningopen weights / self-hostable

DeepSeek: DeepSeek V4.1 Flash costs $0.003 per 1M input tokens and $2.4 per 1M output tokens, with a 1M context window. It is best suited for long-context / RAG, reads images / documents, step-by-step reasoning, open weights / self-hostable, and is available through one OpenAI-compatible Appmo API key.
$0.003Input / 1M
$2.4Output / 1M
1MContext
798.4KHF downloads (30d)
4.1KHF likes
89Buzz (0-100)

What DeepSeek: DeepSeek V4.1 Flash is used for

DeepSeek: DeepSeek V4.1 Flash is best suited for long-context / RAG, reads images / documents, step-by-step reasoning, open weights / self-hostable. Access it through one Appmo API key alongside 458 other models — Appmo's optimizer can route to it automatically when it is the best value for a request. Weights: huggingface.co/deepseek-ai/DeepSeek-V4.1-Flash.

What people are saying (last 30 days)

Not enough posts yet to judge community sentiment. 25 Hacker News stories (1.9K points) · 216 new GitHub repos mentioning it. How we measure this.

Use it via the Appmo API (OpenAI-compatible)

curl https://appmo.com/v1/chat/completions \
  -H "Authorization: Bearer $APPMO_KEY" \
  -d '{"model":"deepseek/deepseek-v4.1-flash","messages":[{"role":"user","content":"Hello"}]}'

FAQ

How much does DeepSeek: DeepSeek V4.1 Flash cost?
DeepSeek: DeepSeek V4.1 Flash costs $0.003 per 1M input tokens and $2.4 per 1M output tokens ($0.602 blended), as of 2026-10-24. Prices are expected to fall as competition increases.

What is DeepSeek: DeepSeek V4.1 Flash best for?
DeepSeek: DeepSeek V4.1 Flash is best suited for long-context / RAG, reads images / documents, step-by-step reasoning, open weights / self-hostable.

How do I use DeepSeek: DeepSeek V4.1 Flash?
Send requests to Appmo's OpenAI-compatible endpoint with model id "deepseek/deepseek-v4.1-flash" and one API key — no separate provider account needed.

Is DeepSeek: DeepSeek V4.1 Flash open source?
Yes — its weights are public on Hugging Face (deepseek-ai/DeepSeek-V4.1-Flash) under the mit license; check the license terms before commercial use.

Can DeepSeek: DeepSeek V4.1 Flash create images?
No. DeepSeek: DeepSeek V4.1 Flash can read and understand images, but it only writes text.