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DeepSeekOpen-weight·1049K context·— params

DeepSeek V4 Flashdeepseek/deepseek-v4-flash

DeepSeek V4 Flash is a previous-generation text MoE model. DeepSeek retired the V4 Flash API on September 10, 2026. The legacy deepseek-v4-flash alias temporarily invokes V4.1 Flash, so it no longer identifies the original V4 model. The historical model page and weights reference are retained.

Availability and billing notes

Reviewed September 21, 2026 · check the linked provider documentation for later changes.

For the current API, use deepseek-flash and consult the DeepSeek V4.1 Flash page. Historical prices from the retired service are no longer shown as active offers.

Official source 1 →

Pricing across providers

No current verified API pricing is listed. See the official model documentation for availability and billing.

Capabilities

  • chat
  • code

Languages: en, zh

Technical specs

Context
1049K
Max output
384K
Parameters
—
Release
—
Training cutoff
—
License
—
Hugging Face →Official documentation →

Similar models

Compare with

  • DeepSeek V4 Flash vs DeepSeek V3.1
    Comparison planned — not yet published
  • DeepSeek V4 Flash vs DeepSeek V4 Pro
    Comparison planned — not yet published
  • DeepSeek V4 Flash vs GLM 5.1
    Comparison planned — not yet published

Frequently asked

How much does DeepSeek V4 Flash cost?+
No current verified API pricing is listed. This does not mean the model is free or that a hosted API is currently available. Check the official model documentation below.
How do I access DeepSeek V4 Flash from outside China?+
Availability, account verification and payment methods vary by provider and region. Check the official documentation and the selected provider's access requirements before integrating. A directory listing does not guarantee global API access.
Is DeepSeek V4 Flash open-source? Can I fine-tune it?+
DeepSeek V4 Flash has published weights. License: see the official repository. Review the linked repository and license for deployment, fine-tuning and commercial-use conditions.
What's the maximum context window for DeepSeek V4 Flash?+
The model supports up to 1,048,576 tokens of context (input + output). Some hosted versions may impose a smaller limit — check the "Context" column in the pricing matrix for each provider.