Gemini Nano Banana 2.1 正式发布，gemini-3.1-flash-image 将于 2026 年 10 月 29 日停用

October 6, 2026

AI 导读

Google 发布 Gemini Nano Banana 2.1（gemini-nano-banana-2.1），定位为高效图像生成与对话式编辑模型，是 Nano Banana 2（gemini-3.1-flash-image）的更新版。

推荐理由

官方更新日志给出模型名、能力改进范围和旧版停用日期，方便使用者安排迁移和评估是否切换。

正文 · 原文

Gemini Nano Banana 2.1 generally available (GA): Released Gemini Nano Banana 2.1 (gemini-nano-banana-2.1), the latest high-efficiency image generation and conversational editing model. An update to Nano Banana 2 (gemini-3.1-flash-image), it maintains Flash-level speed and cost efficiency while delivering significant improvements in visual quality, prompt adherence, multi-turn character consistency, text rendering, and wide and panoramic aspect ratio generation (1:4, 4:1, 1:8, 8:1) across 1K, 2K, and 4K resolutions.

See the Image generation guide to get started.
Deprecation announcement: The gemini-3.1-flash-image model is deprecated and will be shut down on October 29, 2026. Migrate to gemini-nano-banana-2.1.