DeepSeek V4 Flash Thinking is DeepSeek's language model with a 200K context window, starting at $0.25 / 1M input and $1.75 / 1M output. A fast-tier DeepSeek V4 LLM variant with integrated chain-of-thought reasoning, balancing speed and deep thinking capability.
Specifications
Canonical IDdeepseek-v4-flash-thinking
TypeLanguage
StatusActive
CreatorDeepSeekDeepSeek
Providers
Context Window200K tokens
Input ModalitiesText
Output ModalitiesText
Reasoning Effortsdefault

Capabilities

Input1/5
Text✓
Image·
Audio·
Video·
PDF·
Output1/5
Text✓
Image·
Audio·
Video·
Embedding·
Capabilities2/13
Reasoning✓
Adaptive Reasoning·
Function Calling✓
Parallel Function Calling·
Structured Outputs·
Native JSON Schema·
Web Search·
URL Context·
Computer Use·
Code Execution·
File Search·
Prompt Caching·
Assistant Prefill·

Pricing by Provider

US Dollar ($)
Per 1M tokens
ProviderStandard
Input
$ / 1M
Output
$ / 1M
Libertai
libertai/deepseek-v4-flash-thinking
$0.25$1.75

Cost Calculator

US Dollar ($)
Preset:

Versions

VersionReleasedContextInput / 1MOutput / 1MStatus
DeepSeek V4 Flash 0731 P————Available
DeepSeek V4.731 Flash US————Available
DeepSeek V4 420 Flash————Available
DeepSeek V4.4.1 Flash————Available
DeepSeek V4.1 Flash Fast1.0M$0.010$1.20Available
DeepSeek V4.1 Flash Expires Exp1.0M$0.010$0.600Deprecating
DeepSeek V4.1 Flash Beta1.0M——Available
DeepSeek V4.1 Flash DST————Available
DeepSeek V4.1 Flash MaaS————Available
DeepSeek V4.1 Flash P————Available
DeepSeek V4 Flash Thinking—200K$0.250$1.75Current

Other Models

ModelTierReleasedContextInput / 1MOutput / 1M
DeepSeek V4 ProPro1.0M$0.660$1.98
DeepSeek V4 Pro 0813 PPro————
DeepSeek V4 ProPro————
DeepSeek V4 ProPro1.0M$0.225$1.20
DeepSeek V4 Pro 813Pro—1.0M$1.32$3.96
DeepSeek V4 Pro USPro————

Model IDs

deepseek-v4-flash-thinking
libertai/deepseek-v4-flash-thinking