DeepSeek V4-Pro

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.