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

Source: Dev.to

Overview

DeepSeek V4 Pro was launched on April 24 2026 and has been running in production agents. It introduces a dual‑mode architecture (Think / Non‑Think) and supports up to 1 million tokens of context, making long‑context tasks viable at scale.

Specifications

Usage Example

# Python example using the NVIDIA NIM endpoint
client = OpenAI(
    base_url="https://integrate.api.nvidia.com/v1",
    api_key=""
)

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

Performance Highlights

• Long‑context tasks: Handles full conversation logs efficiently.
• Thinking mode: 8–15 seconds per request, offering significantly better multi‑step planning compared to V3.
• Non‑thinking mode: Approximately 2 seconds per request, fast enough for high‑throughput content pipelines.
• Function calling: More reliable than V3.2.

Pricing Comparison

For agent workloads that involve large amounts of input and structured output, DeepSeek V4 Pro emerges as the new sweet spot.

Further Reading

• Updated agent automation guides for V4.