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DeepSeek-V4-Flash

DeepSeek

Released
April 24, 2026
Data date
September 8, 2026
Predecessor
DeepSeek-V3.2
Benchmark-Meta-Score
Minimum coverage not met
Speed
131.8 tokens/s
Output throughput
Price
Input · Output / 1M tokens
Input
Text
Output
Text

What is distinctive about DeepSeek-V4-Flash is its throughput-oriented V4 design with 284 billion total parameters, 13 billion active parameters, and a 1,000,000-token context window. It activates fewer parameters per step than Pro.

DeepSeek discontinued the original V4-Flash endpoint in September 2026 and temporarily routed the name to DeepSeek-V4.1-Flash. The released V4-Flash checkpoint sits alongside DeepSeek-V3.2 and is not the current API target.

Specifications and access

SpecificationValue and source
Weights
Open weightsSource
Access
API, LocalSource
Parameters
284BSource
Active parameters
Context window
1,000,000 tokensSource
Notes
284B total, 13B active, 1M context, MIT-licensedSource
License
Parameters
284 BSource
Active parameters
13 BSource
Architecture
MoE with CSA/HCA and mHCSource
Training tokens
>32TSource
Input
TextSource
Output
TextSource
Reasoning mode
non-think, think-high, think-maxSource
Tool calling
Yes (Native tool use is documented for V4 modes in official release documentation)Source
API model ID
deepseek-v4-flash (Pricing page updated alias: V4-Flash-0731)Source
Availability
First-party DeepSeek API retired 2026-09-10; deepseek-v4-flash requests route to DeepSeek-V4.1-Flash. (Released weights and third-party provider availability are separate from the first-party API lifecycle.) (retrieved 2026-09-23)Source