Nano Banana 2 Lite API: Google’s Fastest Nano Banana Model, Now Live on Pixazo

Every image costs the same: $0.05. No resolution tiers to weigh, no fast-versus-batch decision to make — that flat rate is the entire idea behind the Nano Banana 2 Lite API, now live on Pixazo API. It is the newest — and lightest — member of Google’s Nano Banana image family, and Pixazo puts it behind the same single key as every other model it hosts.

Google’s own line on it is blunt: this is “our fastest, most cost-efficient image model in the Nano Banana family yet, built for high throughput, speed and scale.” In other words, it is not the model you reach for when you want a 4K hero render — it is the one you reach for when you need a lot of good 1K images, quickly, at a price you can forecast.

So rather than march through a feature list, this post looks at what the Nano Banana 2 Lite API actually is, why its speed and flat pricing change how you build, and where it fits next to Nano Banana 2 and Nano Banana Pro on Pixazo.

What the Nano Banana 2 Lite API actually is

Under the hood, Nano Banana 2 Lite is Google’s Gemini 3.1 Flash Lite Image model. It sits at the entry of the Nano Banana 2 generation and is positioned by Google as the recommended replacement for the original Nano Banana (Gemini 2.5 Flash Image) — the model that made “Nano Banana” a household name for AI image generation in the first place.

What makes it “Lite” is a deliberate set of trade-offs. It runs at a fixed 1K (1024px) output, handles two jobs — text-to-image generation and image editing — and drops the resolution tiers that its bigger siblings carry. Crucially, speed and cost were prioritised without gutting quality: Google says the model “retains reliable prompt adherence, strong character consistency and legible in-image text rendering.” That last point matters more than it sounds — readable text inside generated images is exactly where lightweight models usually fall apart.

1024px is, not by accident, the size most avatars, thumbnails, social posts and in-app assets actually ship at. For that work, the Nano Banana 2 Lite API hands you the recognisable Nano Banana look without charging for detail you would only downscale away.

Suggested read: Nano Banana: the generative-AI image model, explained

Four-second images, and why speed changes the workflow

Google clocks Nano Banana 2 Lite at roughly four seconds for a text-to-image result, and calls it “ideal for interactive prototyping and rapid visual drafting.” That number is the quiet headline of this release. Once a model returns an image in about the time it takes to read a tooltip, image generation stops being a background job and starts being an interaction.

Practically, that unlocks patterns a slower, pricier model discourages. You can put a “regenerate” button in front of end users and let them iterate without wincing at the meter. You can generate three or four variations of a prompt in parallel and show the best. You can wire generation into a live editor where the picture updates as the brief changes. When each call is fast and a flat $0.05, “try it and see” becomes a viable product decision rather than a cost risk.

That is the real difference between a draft-tier model and a flagship one: not just how good a single image is, but how cheaply and quickly you can afford to be wrong on the way to the right one.

Suggested read: Turn photos into AI figures with Nano Banana

One flat rate, nothing to calculate

Most image APIs — Nano Banana 2 and Nano Banana Pro included — price by output size, so the cost of a call moves with the resolution you request. On Pixazo, the Nano Banana 2 Lite API removes that variable completely. Create an image or edit one, in any of its 15 aspect ratios, and the answer is always $0.05.

That turns budgeting into arithmetic instead of estimation. The $5 of free credit new accounts receive on first payment is exactly 100 images — enough to wire a workflow together end to end, or batch a first run of avatars, before spending anything more. Scale it to a product rendering thousands of images a day and the forecast is simply images × $0.05, with no tier mix to model and no surprise line item at the end of the month.

Flat pricing is also what makes Lite easy to resell. If you are putting image generation in front of your own users, a known unit cost is far simpler to meter, cap and bill than a sliding resolution scale.

Suggested read: Introducing Gemini Omni API on Pixazo

Lite, Nano Banana 2, or Pro — which one?

All three sit behind the same Pixazo API key, so switching between them is a one-line change in your request. What separates them is the model generation, the resolution ceiling, and what each is tuned for:

A simple way to choose: stay on Lite while 1K is enough and speed or predictable cost matters; move to Nano Banana 2 when a job needs higher resolution or the batch discount; reach for Nano Banana Pro (Gemini 3 Pro Image, with its “thinking” reasoning) when fidelity is the priority.

Suggested read: Create stunning slides with Nano Banana Pro on Pixazo

The work Lite is built for

A fast model, a flat rate and a fixed 1K point the Nano Banana 2 Lite API squarely at workloads where volume, speed and cost predictability matter more than resolution:

• Avatars and PFPs on demand — generate square 1:1 profile images inside an app or community in near real time, at a known cost per user.
• Social posts and thumbnails at volume — produce 9:16, 1:1 and 16:9 cuts of one idea for stories, feeds and video thumbnails, then batch the winners.
• Product and catalogue imagery — generate or edit large sets of 1K visuals where per-image predictability beats 4K detail.
• In-app editing features — wire the editing mode straight into a “restyle, replace, retouch” tool, with legible in-image text that survives the edit.
• Interactive prototyping and drafting — the exact use Google calls out: iterate on prompts and layouts live, cheaply, then promote the best to a higher-resolution tier.

Where Nano Banana 2 Lite sits in Google’s lineup

“Nano Banana” started as a nickname for Google’s Gemini image model and stuck so well that Google now uses it as the official brand. The current family spans three clear tiers, and Lite completes the set at the fast, affordable end:

• Nano Banana 2 Lite (Gemini 3.1 Flash Lite Image) — speed and scale; the replacement for the original Nano Banana.
• Nano Banana 2 (Gemini 3.1 Flash Image) — the balanced tier, with higher resolutions and stronger fidelity.
• Nano Banana Pro (Gemini 3 Pro Image) — the professional tier, using advanced reasoning for complex, high-fidelity briefs.

Google ships these across its own surfaces — the Gemini app, AI Mode in Search, Google Photos, NotebookLM and more — and exposes them to developers through the Gemini API and AI Studio. Pixazo’s role is to put that same lineup, plus dozens of other image and video models, behind one API key and one credit balance — so choosing Lite over Pro (or swapping in a non-Google model entirely) never means a new integration.

Suggested read: The Google Gemini Nano Banana AI saree trend

Getting started with the Nano Banana 2 Lite API

The Nano Banana 2 Lite API runs on the same key, credits and endpoints as every other model on Pixazo — there is no separate signup, you just name the model in your request. New accounts get $5 in credit (roughly 100 images), which is enough to try both generation and editing before committing to volume. Full parameters, the aspect-ratio list and example calls live on the model page.

Because it shares Pixazo’s unified layer, moving between Lite, Nano Banana 2 and Pro — or A/B testing Lite against a completely different provider — is a parameter change, not a re-integration. That is the practical case for reaching Nano Banana through Pixazo rather than wiring each model up on its own.

Nano Banana 2 Lite API: quick answers

What is the Nano Banana 2 Lite API?

The Nano Banana 2 Lite API is Pixazo’s access to Google’s Gemini 3.1 Flash Lite Image model — the lightweight, fastest tier of the Nano Banana family. It does text-to-image generation and image editing at a fixed 1K (1024px), for a flat $0.05 per image on Pixazo.

Which Gemini model powers it?

Gemini 3.1 Flash Lite Image. Nano Banana 2 runs on Gemini 3.1 Flash Image, and Nano Banana Pro on Gemini 3 Pro Image. Lite is Google’s recommended replacement for the original Nano Banana (Gemini 2.5 Flash Image).

How fast and how cheap is it?

Google reports around a four-second text-to-image result, and positions it as its fastest, most cost-efficient Nano Banana model. On Pixazo it is a flat $0.05 per image; new accounts get $5 (about 100 images) in free credit.

Why is the pricing flat instead of tiered?

Because the output resolution is fixed at 1K. With no size to choose, every generation or edit is $0.05, in any aspect ratio — which makes cost trivial to forecast at volume.

Can it edit images, or only generate them?

Both. Alongside text-to-image, it takes an input image and an instruction and returns an edited version, at the same 1K resolution and flat price, keeping legible in-image text through the edit.

When should I use Nano Banana 2 or Pro instead?

Move up when you need more than 1K. Nano Banana 2 goes to 4K with fast and batch pricing; Nano Banana Pro (Gemini 3 Pro Image) is the highest-fidelity option, with reasoning tuned for complex professional work.

How do I start?

Grab an API key at pixazo.ai/models/nano-banana, select Nano Banana 2 Lite in your request, and use the $5 free credit to test. It shares one key and credit balance with every other Pixazo model.