DeepSeek V4.1 Flash is a multimodal Mixture-of-Experts model with 552B backbone parameters (8B active on input, 16B on output) and a 1M-token context window. It natively processes images and text, with strong reasoning, coding, and agentic performance.
Modalities
In / out price
$3.45 / $14.00per 1M
Cached price
$0.069per 1M
Context
1M
Max output
131K
Providers
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Privacy
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Features
8Streaming
Tool calling
Reasoning
Vision
JSON/schema
Web search
Code optimized
Prompt caching
Uptime
FAQ
Common questions about DeepSeek V4.1 Flash 1017 Ultrafast.