GPT-5.3 Chat

Overview

Model description: original source language.

GPT-5.3 Chat 是对 ChatGPT 最常用模型的升级，使日常对话更加流畅、实用且直接实用。它能提供更准确的答案，更好地提供上下文，显著减少不必要的拒绝、附加条件和过于谨慎的措辞，避免打断对话流畅。

Pricing

Pricing follows the current settings of your account group.

API integration

Use a Yunhai API key to call configured models.

curl "$YUNHAI_BASE_URL/chat/completions" \
  -H "Authorization: Bearer $YUNHAI_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"model":"openai/gpt-5.3-chat","messages":[{"role":"user","content":"你好"}]}'