Nano Banana 2.1 Integration Guide: Same Price for 1K/2K/4K, 14 Reference Images, and a 6-Step Checklist for Migrating to gemini-3.1-flash-image
Author’s note: This Nano Banana 2.1 migration guide covers model IDs, 1K/2K/4K resolutions, 14 reference images, thinking levels, and billing, with a complete checklist for migrating from gemini-3.1-flash-image. Here’s the short version: Nano Banana 2.1 is an upgrade to Nano Banana 2 (gemini-3.1-flash-image), with the same Flash-level speed and cost positioning. When migrating from the … Read more