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DeepSeek V4.1 Flash

Fast and lightVisionTools

DeepSeek · Released September 2026

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 is part of DeepSeek's open-weight line, known for delivering near-frontier reasoning and coding quality at a fraction of typical frontier pricing, with V4.1 Flash at the head and the V4 Pro and Flash tiers behind it.

Facts and pricing

Provider
DeepSeek
Context window
1.0M tokens
Input price
3.6 credits / 1M tokens ($0.30 raw)
Output price
14.4 credits / 1M tokens ($1.20 raw)
Vision (image input)
Yes
Tool calling
Yes
Extended reasoning
No

Credits are what Zeplik bills: 1 credit = $0.10, computed from the raw provider rate with a 1.20x margin. Raw prices shown per 1M tokens.

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Ask DeepSeek V4.1 Flash anything. Your prompt opens in the Zeplik app with this model selected.

DeepSeek V4.1 Flash

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What DeepSeek V4.1 Flash is best for

Example prompts

Prompts that suit a fast and light model like DeepSeek V4.1 Flash:

DeepSeek family

ModelContextInput cr/MOutput cr/MReleased
DeepSeek V4.1 Flash1.0M3.614.4September 2026
DeepSeek V4.1 Flash (batch)1.0M1.34.0September 2026
DeepSeek V4 Flash Vision Exp1.0M2.67.8August 2026
DeepSeek V4 Pro 08131.0M7.923.8August 2026
DeepSeek V4 Flash 07311.0M0.2215.4July 2026
DeepSeek V4 Pro 04231.0M2.55.0April 2026
DeepSeek V4 Flash 04231.0M0.3615.4April 2026
DeepSeek V3.2131K3.45.0December 2025
DeepSeek V3.2 Exp164K3.24.9September 2025
DeepSeek V3.1 Terminus164K3.212.0September 2025

All 15 DeepSeek models

Frequently asked questions

What is DeepSeek V4.1 Flash?
DeepSeek V4.1 Flash is an AI model by DeepSeek. 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.
How much does DeepSeek V4.1 Flash cost on Zeplik?
Input tokens cost 3.6 credits per million and output tokens 14.4 credits per million (1 credit = $0.10; the raw provider rates are $0.30 and $1.20 per million). New accounts start with free credits.
How long can a conversation with DeepSeek V4.1 Flash be?
DeepSeek V4.1 Flash has a 1.0M-token context window (1,048,576 tokens), which covers the conversation plus any documents you attach.
Does DeepSeek V4.1 Flash support images and tools?
DeepSeek V4.1 Flash accepts image input and supports tool calling.

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