DeepSeek V4 Pro Just Dropped — Here's What Changed for AI Agents

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 = " " ) response = client . chat . completions . create ( model = " deepseek-ai/deepseek-v4-pro " , messages = [...] ) Real-World Performance Long cont