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

# ai# deepseek# llm# productivity
DeepSeek V4 Pro Just Dropped — Here's What Changed for AI Agents이윤혁 (omqxansi)

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

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 spot.

My agent automation guides updated for V4: https://yanmiay.gumroad.com