Nano Banana 2

API ID gemini-3.1-flash-image-preview

gemini-3.1-flash-image-preview was a preview Google model, released February 2026.

Gemini 3.1 Flash Image Preview.
Google's description

Status: Retired
Released: February 2026
Shutdown: Jun 25, 2026 at the earliest
Replacement: Gemini Nano Banana 2.1gemini-nano-banana-2.1

It was scheduled to shut down no earlier than June 25, 2026, which has passed. Check the provider's page before relying on it. Recommended replacement: gemini-nano-banana-2.1.

How to migrate to Gemini Nano Banana 2.1

Price history

USD per 1M tokens, standard tier

No price history yet.

Prices

USD per 1M tokens, every type and band, by tier

No published prices.

Changelog

Changes we detected on Google's pages

No changes recorded yet.

Last checked Oct 15, 2026, 8:15 am ET · Sources: Google deprecations, Google pricing, Google models, Google aliases, Google api models