DeepSeek V4-Pro
- Provider
- DeepSeek
- Modality
- TEXT
- Parameters
- 1600B
- Context window
- 1,000,000 tokens
- Weights
- Open
- Released
- 24 Apr 2026
DeepSeek V4-Pro (April 2026, preview) is DeepSeek's MIT-licensed frontier flagship — a ~1.6T/49B-active MoE with a 1M context and built-in reasoning that subsumes the R-series.
Best for
- Frontier coding / agentic work (tops the line on LiveCodeBench, SWE-bench)
- Hardest reasoning/science via built-in thinking mode
- True 1M-context tasks (whole-repo, long-doc)
- When quality matters more than cost
How it compares — and the India angle
- MIT-licensed frontier weights give data residency for Indian firms, but 1.6T MoE means most users access it via API, not self-host.
- Reasoning is folded into V4's hybrid thinking mode — there is no standalone R2.
- Preview status: full benchmark tables aren't yet in primary sources — treat blog claims as approximate.
Benchmarks
Representative public scores (approximate, higher is better) for relative comparison. Check the provider for the latest official results.
How to access
Being phased out: since 14 September 2026 API calls to deepseek-v4-pro are routed to DeepSeek V4.1 Flash at V4.1 Flash prices, until V4.1-Pro launches. Weights remain MIT-licensed.
Access DeepSeek V4-ProFrequently asked questions
What is DeepSeek V4-Pro?
DeepSeek V4-Pro is a text AI model developed by DeepSeek with 1600 billion parameters.
Who made DeepSeek V4-Pro?
DeepSeek V4-Pro was created by DeepSeek.
Is DeepSeek V4-Pro open source?
Yes, DeepSeek V4-Pro has open weights and can be downloaded and self-hosted.
What is DeepSeek V4-Pro's context window?
DeepSeek V4-Pro supports a context window of 1,000,000 tokens.