The Nano Banana Family Timeline: Banana → Pro → 2 → 3?

In eight months Google DeepMind shipped three image models under the same banana banner: Nano Banana (Gemini 2.5 Flash Image) on August 26, 2025, Nano Banana Pro (Gemini 3 Pro Image) on November 20, 2025, and Nano Banana 2 (Gemini 3.1 Flash Image) on February 26, 2026. That cadence (roughly one major release per quarter) is why "Nano Banana 3" already gets around 34K monthly searches even though Google has not announced it.

This article lays out the family timeline with citations, then addresses the Nano Banana 3 question: what is confirmed, what is reasonable inference from the release pattern, and what is pure speculation.

TL;DR

• Nano Banana = Gemini 2.5 Flash Image, released August 26, 2025. Per Google Developers Blog.
• Nano Banana Pro = Gemini 3 Pro Image, released November 20, 2025. Per Google blog.
• Nano Banana 2 = Gemini 3.1 Flash Image, released February 26, 2026. Per Google blog.
• Nano Banana 3 has not been announced. Searches like "nano banana 3" are forward-looking; Google has not published a date, model id, or feature set.

The family at a glance

Sources for the table: Google Developers Blog: Gemini 2.5 Flash Image, Google blog: Nano Banana Pro, Google blog: Nano Banana 2, DeepMind: Gemini 3.1 Flash Image, OpenRouter model page.

Stage 1: Nano Banana (Gemini 2.5 Flash Image), August 2025

The model that started the brand first appeared anonymously on the LMArena evaluation platform on August 12, 2025, where it quickly climbed leaderboards under the codename "nano-banana." Google confirmed its identity on August 26, 2025, publishing the official launch as Gemini 2.5 Flash Image on the Google Developers Blog. Background on the LMArena debut and naming origin is summarized in Wikipedia's Nano Banana article.

What Google documented at launch:

• Model id: gemini-2.5-flash-image-preview
• Pricing: $30.00 per 1 million output tokens, with each image being 1290 output tokens (≈ $0.039 per image) (source)
• Capabilities highlighted in the launch post: "Blend multiple images into a single image, maintain character consistency for rich storytelling, make targeted transformations using natural language"
• Distribution: Gemini API, Google AI Studio, Vertex AI, plus partners OpenRouter and fal.ai
• Watermarking: every output carries an invisible SynthID marker

Why it broke through: per-image pricing under four cents, native instruction-following for edits, and an early viral moment around "3D figurine" portraits. The Wikipedia entry consolidates the launch-period numbers (10M+ new Gemini app users, 200M+ image edits within weeks). For the consumer-tier studio under this branch, see /nano-banana.

Stage 2: Nano Banana Pro (Gemini 3 Pro Image), November 2025

Three months after the original, Google DeepMind released Nano Banana Pro on November 20, 2025, built on the larger Gemini 3 Pro reasoning backbone. The release was announced jointly across blog.google, the Google Developers Blog, and the DeepMind product page.

What changed versus the original:

• Native 2K and 4K output (up to 4096×4096), with adjustable aspect ratios
• Explicit consistency capability: "the consistency and resemblance of up to five characters and the fidelity of up to fourteen objects in a single workflow"
• Stronger in-image text rendering with multilingual translation, marketed for "posters and intricate diagrams"
• World knowledge integration via Google Search for context-aware outputs (recipes, current events, etc.)
• Same SynthID transparency marker

Distribution at launch covered Gemini app, Workspace Slides and Vids, Google Ads, the API, AI Studio, Vertex AI, and Flow. The model id gemini-3-pro-image-preview is what third-party platforms expose behind their "Nano Banana Pro" toggles. Simon Willison's launch-day writeup placed it at the top of available image models that day.

Google did not publish a single per-image price on the launch page. Third-party API aggregators settled around ~$0.13 at 1K/2K and ~$0.24 at 4K, the figures we use throughout /nano-banana-pro.

Stage 3: Nano Banana 2 (Gemini 3.1 Flash Image), February 2026

Three months after Pro, Google shipped Nano Banana 2 on February 26, 2026, announced on blog.google with a parallel Workspace Updates post. The model id is gemini-3.1-flash-image-preview (AI Studio page, DeepMind product page).

Google's framing: Nano Banana 2 brings "the advanced world knowledge, quality and reasoning" of Pro to the Flash tier "at lightning-fast speed." Concretely:

• Subject consistency: up to five characters and 14 objects (matching Pro)
• Resolution range: 512px to 4K in a single model
• Web-grounded knowledge via real-time search
• Default replacement of the original Nano Banana across the Gemini app, Search AI Mode, Lens, Ads, and Flow

Pricing on OpenRouter for gemini-3.1-flash-image-preview is listed at $0.50/M input tokens and $3/M output tokens (source). That is substantially cheaper than the Pro tier, which is the main story of the release. For the consumer studio interface, see /nano-banana-2.

The pattern: what Google's release cadence actually shows

Three data points are not a trend, but they are a sequence:

Two observations that are anchored in the citations above:

1. The family alternates between Pro and Flash tiers. Google ships a higher-quality Pro release, then brings most of that quality back down to Flash speed and price.
2. The cadence so far is roughly a quarter between releases.

Two observations that are not anchored. These are inferences, not Google statements:

• That the next major release will be a Pro generation (because the last release was Flash). Google has not committed to this pattern continuing.
• That it will arrive around mid-2026. Google has not pre-announced any date.

We label both as inference because Google has not published a roadmap.

Nano Banana 3: what's confirmed, what's not

This is the section the search demand is asking about, so we want to be especially careful.

What is confirmed about "Nano Banana 3"

Nothing. As of the publish date of this article (April 18, 2026), Google has not:

• Announced a model named "Nano Banana 3" on blog.google, the Google Developers Blog, or DeepMind.
• Listed any model id matching the pattern (e.g., gemini-4-pro-image-preview) on Google AI Studio or OpenRouter.
• Provided a release window, capability spec, or pricing table.

Anything that claims to know specs of Nano Banana 3 today is fabricating them.

What is reasonable speculation (clearly labelled)

Given the alternating Pro → Flash → Pro cadence and the ~90-day gap between releases:

• A Nano Banana 3 / Gemini 4 Pro Image-style release would fit the pattern as the next step. The naming is a guess; Google could equally call the next model "Nano Banana Ultra," "Nano Banana Pro 2," or drop the banana branding entirely.
• A mid-2026 window is consistent with the cadence. That is also not a date Google has committed to.
• Likely directional improvements, judging by what each release has emphasized so far (longer context, more characters, higher resolution, more grounded knowledge): more than five characters in a single workflow, native video frame generation, and tighter integration with Gemini's reasoning chain. None of these are announced features.

What to do if you're searching for "Nano Banana 3"

Until Google ships it, the closest analogues are already available: Nano Banana Pro for native 4K and maximum consistency, Nano Banana 2 for near-Pro quality at Flash price, and the original Nano Banana for cheapest-per-image drafting. We will update this article with the dated announcement and official model id when Google ships the next generation.

Choosing inside the family today

A sensible 2026 default: draft on Nano Banana 2 and escalate to Pro only when the deliverable needs native 4K or a high-stakes consistency shot.

Frequently asked questions

Is Nano Banana 3 out yet?

No. As of April 18, 2026, Google has not announced a model named Nano Banana 3. The current generations are Nano Banana (source), Nano Banana Pro (source), and Nano Banana 2 (source).

When will Nano Banana 3 be released?

Google has not announced a date. Based on the published release cadence (roughly 86 days between Nano Banana and Nano Banana Pro, and 98 days between Pro and Nano Banana 2), a next release later in 2026 would be consistent with the pattern, but this is speculation, not a Google statement.

What's the difference between Nano Banana, Pro, and 2?

Nano Banana (Aug 26, 2025) is the original Flash-tier model at ~$0.039/image. Nano Banana Pro (Nov 20, 2025) added native 4K and five-character consistency. Nano Banana 2 (Feb 26, 2026) brings most of Pro's quality back to Flash speeds at $0.50/M input and $3/M output tokens.

Is "Nano Banana" an official Google name?

Yes. Although it began as an LMArena codename, Google adopted it as the public marketing name. Each release pairs the banana name with a Gemini model id, both shown on the DeepMind product pages.

Where can I try the Nano Banana family?

Inside Google: the Gemini app, Google AI Studio, and Vertex AI. Outside Google: any wrapper of the Gemini API, including gptimg.co at /nano-banana, /nano-banana-pro, and /nano-banana-2.

Will Nano Banana 3 be free?

Unknown. Google has not announced the model. Every prior Nano Banana release has shipped with a free quota in the Gemini app and paid API access via AI Studio and Vertex AI; Google has not committed to repeating that pattern.

Try the Nano Banana family

The studio at gptimg.co wraps every shipped member of the family from one dropdown, with no separate Google Cloud project required. Start with Nano Banana 2 for everyday work, escalate to Nano Banana Pro for 4K deliverables, and keep the original Nano Banana on hand for cheapest-per-image drafting.

Sources

• Introducing Gemini 2.5 Flash Image, Google Developers Blog (Aug 26, 2025)
• Nano Banana Pro: Gemini 3 Pro Image model from Google DeepMind, Google blog (Nov 20, 2025)
• Developers can build with Nano Banana Pro, Google Developers Blog
• Gemini 3 Pro Image: Nano Banana Pro, Google DeepMind product page
• Nano Banana 2: Google's latest AI image generation model, Google blog (Feb 26, 2026)
• Introducing Nano Banana 2 in the Gemini app, Google Workspace Updates
• Gemini 3.1 Flash Image: Nano Banana 2, Google DeepMind product page
• Gemini 3.1 Flash Image (Nano Banana 2), Google AI Studio model page
• google/gemini-3.1-flash-image-preview, OpenRouter pricing
• google/gemini-2.5-flash-image-preview, OpenRouter pricing
• Nano Banana Pro is the best available image generation model, Simon Willison launch-day analysis
• Nano Banana, Wikipedia consolidated history

Last reviewed against source pages: 2026-04-18. Citation links and pricing figures change periodically; confirm at the linked sources before quoting numbers.