Nano Banana 2.1 briefly appears in Google Flow, but Google has not confirmed a launch

A post on X says Google’s Nano Banana 2.1 is now available, offering high-quality image generation at lower prices across Google’s AI products. That would be a notable upgrade to one of the company’s most popular creative tools.

The paper trail does not back it up. As of October 6, 2026, Google has not confirmed any rollout of a model called Nano Banana 2.1. It is missing from AI Studio, the Gemini API, and the company’s pricing documentation.

What actually happened

The name did appear somewhere official. Starting October 5, 2026, users spotted Nano Banana 2.1 in the model selector of Google Flow, the company’s AI video tool.

It did not stay long. The listing was pulled shortly after users began reporting it, and no announcement came with it.

Google Flow’s own model help page reinforces the point. It lists only the established Nano Banana variants and makes no mention of a 2.1 tier.

The claim about reduced prices also has nothing behind it in the documentation. Google has made no pricing changes, and nothing points to a new tier tied to the 2.1 reference.

The Nano Banana lineup that does exist

Nano Banana is Google’s branding for its image models. They handle text-to-image generation, image editing, and conversational workflows where users refine a picture through back-and-forth prompts.

Three versions are currently in production. Each carries a friendlier consumer name and a more technical model identifier:

Nano Banana 2 runs as gemini-3.1-flash-image.

Nano Banana 2 Lite runs as gemini-3.1-flash-lite-image.

Nano Banana Pro runs as gemini-3-pro-image.

All three support output resolutions up to 4K, along with a range of aspect ratios. Pricing scales with resolution and usage.

At the bottom of the range, a 1K image from the Lite model costs approximately $0.0336. At the top, a 4K image from Pro runs $0.24.

The family has grown steadily this year. The two most recent additions arrived in February 2026 and June 2026, with Nano Banana 2 Lite becoming available on June 30, 2026.

Why the distinction matters

For developers, the gap between a leaked name and a shipped model is practical, not academic. You cannot call a model through the Gemini API if it is not listed there. You also cannot budget around prices that have not been published.

Anyone building products on Nano Banana should keep planning around the three documented models and their published rates. Rewriting an integration or a cost forecast based on a vanished dropdown entry would be premature.

Until a listing appears in AI Studio, an entry in the Gemini API model list, and new rows in the pricing documentation, the lower prices described in the post on X remain a claim, not a rate card. Developers looking for cheaper image generation already have an option in Nano Banana 2 Lite, which is documented, priced, and available now.