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DeepSeek

DeepSeek V4 Flash (0731)

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DeepSeek
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The GA release of DeepSeek's efficiency-optimized V4 Flash, re-post-trained for coding, reasoning, and agent workflows. 284B total / 13B active sparse MoE with a 1.3M-token context. The July 31 checkpoint keeps the low price and adds more stable tool use and agent behavior.

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DeepSeek V4 Flash (0731) is somewhat expensive at $0.02/M tokens input and $1.28/M tokens output. Cached input reads are priced at $0.02/M tokens, making repeated context cheaper. The model supports extended reasoning, a 1M context window.

Best forExpert reasoningLong-context analysisCost-effective

Benchmarks

CodingInsufficient data
AgenticInsufficient data
Sources:Epoch AI·OpenRouter· as of 2026-10-02

Category Rankings

Math
#17of 121
Reasoning
#24of 123

Specifications

Vision
Audio
Reasoning
MoE
Architecture
284B
Parameters
13B
Active
1.0M
Context
256K
Max output

Performance

Providers

Misc

July 31, 2026
Released
Same family
DeepSeekDeepSeek V4 FlashDeepSeekDeepSeek V4 Flash Vision ExpDeepSeekDeepSeek V4 ProDeepSeekDeepSeek V4 Pro (0813)
CompareChat with DeepSeek V4 Flash (0731)

Compare with

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Frequently Asked Questions about DeepSeek V4 Flash (0731)▼

When was DeepSeek V4 Flash (0731) released?

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DeepSeek V4 Flash (0731) was released on July 31, 2026.

Who created DeepSeek V4 Flash (0731)?

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DeepSeek V4 Flash (0731) was created by DeepSeek.

How much does DeepSeek V4 Flash (0731) cost?

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DeepSeek V4 Flash (0731) costs $0.02/M input tokens and $1.28/M output tokens.

What is DeepSeek V4 Flash (0731) API pricing?

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The DeepSeek V4 Flash (0731) API is priced at $0.02 per million input tokens and $1.28 per million output tokens. You can access DeepSeek V4 Flash (0731) through idapt.app alongside 200+ other AI models in one workspace.

Is DeepSeek V4 Flash (0731) a reasoning model?

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Yes, DeepSeek V4 Flash (0731) is a reasoning model. It can think step-by-step through complex problems before providing an answer, often yielding better results on difficult tasks like math, coding, and multi-step logic.

Does DeepSeek V4 Flash (0731) support image or vision input?

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No, DeepSeek V4 Flash (0731) does not currently support image or vision input. It is a text-only model.

Does DeepSeek V4 Flash (0731) support audio?

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No, DeepSeek V4 Flash (0731) does not support audio input.

What is the context window of DeepSeek V4 Flash (0731)?

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DeepSeek V4 Flash (0731) has a context window of 1M tokens, meaning it can process approximately 786,432 words of context at once.

Is DeepSeek V4 Flash (0731) open source?

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DeepSeek V4 Flash (0731) is a proprietary model developed by DeepSeek. The model weights and training data are not publicly available.

What is DeepSeek V4 Flash (0731) good at?

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Based on benchmark data, DeepSeek V4 Flash (0731) excels at: mathematical problem solving. It is DeepSeek's capable model suitable for a wide range of tasks.

Where can I use DeepSeek V4 Flash (0731)?

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You can chat with DeepSeek V4 Flash (0731) on idapt.app — no separate API key required. idapt is an AI workspace with 200+ models, agents, computers, and tasks. You can also access DeepSeek V4 Flash (0731) through DeepSeek's own API or platform.

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