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DeepSeek V4 Pro
Open-weights flagship for reasoning, coding, and agents
Context Window
1M tokens
Parameters
1.6T total / 49B active
Source
Open
Modality
Text, Code
DeepSeek V4 Pro is a flagship open-weights model with 1.6T total parameters (MoE) designed for long-context reasoning, coding, and agentic workflows.
Specifications
Technical details
Developer
DeepSeek
Model Family
DeepSeek V4
Parameters
1.6T total / 49B active
Context Window
1,000,000 tokens (1M)
Modality
Text, Code
Open Source
Yes
License
MIT
API Available
Yes
Release Date
January 20, 2026
Pricing
Free to self-host; $1.93 blended via API