Notice
Wan3.0 Officially Launched: Wan3.0 is a native large-scale model for generating 30-second videos, seamlessly orchestrating all audiovisual elements and supporting multi-modal references, delivering viOriginal Manufacturer Authorized · Genuine and TraceableEnterprise‑grade large‑model intelligent gateway platform—provides enterprises with compliant, controllable, stable, and efficient AI model API aggregation and governance services; one‑stop access to⚡️This site has been integrated with the official versions of GLM 5.3 and DeepSeek V4❗️

Text generation / DeepSeek

DeepSeek-V4-Flash-0731

API name: deepseek-v4-flash-0731

Deep Thinking

Overview

A flagship MoE large model with 1.6 trillion parameters and 49 billion activated parameters, natively supporting context lengths of up to one million tokens. Trained on a vast corpus of high-quality data, it excels in advanced mathematical reasoning, complex logical inference, specialized coding, and deep analysis of long-form text, making it well-suited for demanding applications such as cutting-edge research, sophisticated office workflows, and advanced AI agents.

  • Model type: Text generation
  • Input: Text
  • Output: Text
  • Endpoints: chat / chat_completion
Tiered billing details
TierInputOutputCache hit
Off-peak$0.0002/1K$0.0006/1K$0.0000/1K
Peak$0.0004/1K$0.0013/1K$0.0000/1K

Billed bylen (input context token count). Coefficient is the $ / 1M tokens price. Default group price (other groups converted by discount).

Code example

Call with deepseek-v4-flash-0731 :

curl https://www.starunion.net/v1/chat/completions \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "deepseek-v4-flash-0731",
    "messages": [{ "role": "user", "content": "Hello" }]
  }'