V4 Pro launched April 24, 2026. Been running it on production agents since.

Specs

Total params: 1.6T (MoE)

Active params: 49B

Context: 1M tokens (verified)

Modes: Think / Non-Think dual

License: MIT

Pricing: $1.74/1M input, $3.48/1M output

API Setup (OpenAI-compatible)

client = OpenAI ( base_url = " https://integrate.api.nvidia.com/v1 " , api_key = " <NVIDIA_NIM_KEY> " ) response = client . chat . completions . create ( model = " deepseek-ai/deepseek-v4-pro " , messages = [...] )

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Real-World Performance

Long context tasks : Finally viable at scale (full conversation logs)

Thinking mode : 8-15s, much better multi-step planning vs V3

Non-thinking mode : ~2s, fast enough for content pipelines

Function calling : More reliable than V3.2

Cost Comparison (per 1M tokens)

Model Input Output

DeepSeek V4 Pro $1.74 $3.48

Claude Sonnet 4.6 $3.00 $15.00

GPT-4o $2.50 $10.00

For agent workloads (lots of input, structured output), V4 Pro is the new sweet…