Gemini 3.1 Flash Image

Overview

Model description: original source language.

谷歌最强图像模型，nano banana 2 。Gemini 3.1 Flash Image 将最强大的图像生成功能推向主流市场。它提升了图像质量、视觉理解能力，更好地渲染了多种语言的长文本段落，并提高了图像的真实性。该模型还能够生成分辨率从 512 (0.25MP) 到 4K (16MP) 的图像。

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":"google/gemini-3.1-flash-image","messages":[{"role":"user","content":"你好"}]}'