OpenCraft

deepseek · chat model

Try DeepSeek V4.1 Flash onlinenew

deepseek/deepseek-v4.1-flash

Added to OpenRouter: 10 Sept 2026

First seen here: · Specs updated:

Use DeepSeek V4.1 Flash in your browser. Explore pricing and capabilities below, or start a chat in OpenCraft.

Input price$0.15per M tokenscheaper than 69% of chat models
Output price$0.60per M tokenscheaper than 69% of chat models
Cache read$0.0030per M tokens
Context window1Mtokensof the largest window in the catalog (10M)

DeepSeek V4.1 Flash pricing: what a turn costs

Estimates from the published token rates above — real turns vary with tool calls and transcript length.

  • Quick answer2K tokens in, 600 out$0.0007
  • 10-slide deck build60K tokens in, 9K out$0.014
  • 150-page PDF read200K tokens in, 4K out$0.032

Specs and listed prices from OpenRouter. Actual usage cost depends on the serving provider.

How to use DeepSeek V4.1 Flash

  1. Select “Try DeepSeek V4.1 Flash online” to open OpenCraft with this model selected.
  2. Sign in or create an account if prompted.
  3. Type a question or describe a task, then send your message.

To compare answers, start a separate chat with another model and use the same prompt.

DeepSeek V4.1 Flash capabilities

tool-usevisionreasoning

text, image in → text out

What is DeepSeek V4.1 Flash?

DeepSeek V4.1 Flash is DeepSeek’s September 10, 2026 release, with text and image input, a one-million-token context window, and support for reasoning and tool calls. In OpenCraft, you can use it with web search and tools for creating files.

What can I make with it?

Try an Excel workbook with formulas and checks, a presentation, or a research memo with sources. OpenCraft’s tools create the files; model support alone does not guarantee a correct result. Review calculations and citations before using them.

Does it understand images?

Yes. Attach an image and ask about its contents. Image understanding is distinct from image generation: OpenCraft uses a separately selected image model to create or edit images.

How much does DeepSeek V4.1 Flash cost?

The table shows the latest recorded OpenRouter token rates, with illustrative turn estimates. DeepSeek publishes peak and off-peak pricing, so these are not fixed all-day quotes. Serving provider, caching, reasoning, transcript length and tool use affect actual cost. Image generation and other paid tools can add charges.

Is DeepSeek Flash the same as V4.1 Flash?

DeepSeek’s direct API calls this version deepseek-flash. OpenCraft routes it through OpenRouter as deepseek/deepseek-v4.1-flash. The older V4 Flash 0731 listing is a different catalog entry; its measurements are not V4.1 results.

Release facts checked September 10, 2026 against DeepSeek’s model documentation and OpenRouter’s V4.1 Flash listing. For current rates and availability, use the live provider listings.

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