GPT Image 2 vs Nano Banana 2 vs Nano Banana Pro
GPT Image 2 vs Nano Banana: Side-by-Side Results
Four identical prompts on GPT Image 2, Nano Banana 2 and Nano Banana Pro, plus the differences in text, editing, speed and price.
Updated
GPT Image 2 vs Nano Banana is the comparison most people make before choosing an image model in 2026. GPT Image 2 is the OpenAI model behind ChatGPT Images 2.0, released in April 2026. Nano Banana is Google’s Gemini image family, where Nano Banana 2 is the fast flagship and Nano Banana Pro is the top tier. We ran the same four prompts through each one on our own account and put the unedited results side by side below.
Short answer
Pick GPT Image 2 when the image depends on an exact layout or a lot of text: posters, diagrams, menus, UI mockups. Pick Nano Banana 2 for fast, natural-looking photos and everyday edits, and Nano Banana Pro when a final image has to hold up at 4K. In our test all three spelled the text correctly; the real differences were how literally each one read the prompt and the style it chose.
GPT Image 2 vs Nano Banana: the verdict
| Criterion | Our pick | Why |
|---|---|---|
| Text and layout | GPT Image 2 | It plans the layout before rendering and gave the most finished poster in our test. Nano Banana 2 also spelled the title right but added a tagline nobody asked for. |
| Following the prompt literally | GPT Image 2 | Asked for a banana-shaped perfume bottle, it made exactly one. Nano Banana Pro made a banana-shaped vessel next to a separate bottle. |
| Natural, candid photos | Nano Banana 2 or Pro | Both returned relaxed window-light portraits. GPT Image 2 added a posed, editorial hand-on-face look the prompt did not ask for. |
| Speed | Nano Banana 2 | It is Google’s Flash-tier model, built for speed. GPT Image 2 and Nano Banana Pro both reason about the image before drawing it, which adds time. |
| Cost per image here | GPT Image 2 | At 1K it costs 30 credits on this site, against 40 for Nano Banana 2 and 90 for Nano Banana Pro. |
| 4K output | Tie | All three reach 4K on the Pro plan. GPT Image 2 cannot make a 4K square, so use any other aspect ratio at 4K. |
Same prompts, side by side
Each row uses one prompt, run once on each model on our own account. The images are unedited; the note under each row says what we saw.
Prompt: “Photorealistic close-up portrait of a young woman with light freckles and natural curly hair, soft window light, shallow depth of field, 85mm lens, high detail”
All three are photorealistic and kept the freckles and curly hair. Nano Banana 2 chose a smiling, environmental shot and Pro a quieter one; GPT Image 2 went for a tighter, posed editorial look.
Prompt: “Professional studio product photograph of a glossy yellow banana-shaped perfume bottle on a white marble surface, soft gradient background, clean commercial lighting”
GPT Image 2 and Nano Banana 2 each made one banana-shaped bottle and added a small label. Nano Banana Pro read the prompt as a banana-shaped vessel plus a separate bottle.
Prompt: “Bold playful poster with large 3D text reading 'NANO BANANA' in bright yellow letters on a dark background, confetti, soft glow, modern typography, high quality”
All three spelled NANO BANANA correctly. Nano Banana 2 added an extra tagline under the title; GPT Image 2 added a banana icon and the boldest poster styling.
Prompt: “Cinematic fantasy landscape at golden hour, floating islands above a misty valley, dramatic volumetric clouds, ultra detailed, wide establishing shot”
All three handled the floating islands and golden-hour light. GPT Image 2 and Nano Banana 2 added castles and waterfalls; Nano Banana Pro leaned on a dramatic cloud swirl.
Specs compared
| GPT Image 2 | Nano Banana 2 | Nano Banana Pro | |
|---|---|---|---|
| Engine | OpenAI GPT Image 2 | Gemini 3.1 Flash Image | Gemini 3 Pro Image |
| Developer | OpenAI | Google DeepMind | Google DeepMind |
| Released | April 2026 | February 2026 | November 2025 |
| Also powers | ChatGPT Images 2.0 | The Gemini app (default) | Gemini app “redo with Pro” |
| Thinks before drawing | Yes | No (Flash tier) | Yes |
| Best at | Text, diagrams, exact layouts | Fast photos and everyday edits | Final 4K images, dense detail |
| Credits per image on Nano Banana AI | 30 credits at 1K, 50 credits at 2K, 80 credits at 4K | 40 credits at 1K, 60 credits at 2K, 90 credits at 4K | 90 credits at 1K, 90 credits at 2K, 120 credits at 4K |
| Max resolution here | 4K | 4K | 4K |
| Reference images here | Up to 4 | Up to 4 | Up to 4 |
| Included from | Premium plan | Premium plan | Pro plan |
What GPT Image 2 and Nano Banana are
GPT Image 2 is OpenAI’s image model and the engine of ChatGPT Images 2.0. Its big change over GPT Image 1.5 is that it reasons about layout, spelling and composition before it renders, which is why it handles posters, labels and diagrams well.
Nano Banana is Google’s family of Gemini image models. Nano Banana 2 (Gemini 3.1 Flash Image) is the fast default in the Gemini app. Nano Banana Pro (Gemini 3 Pro Image) is the slower, higher-quality tier. The original Nano Banana (Gemini 2.5 Flash Image) is still around as a cheap 1K option. If you are new to the name, start with What is Nano Banana?.
Text and layout: GPT Image 2 leads
Both families now spell short titles correctly, which was not true a year ago. The difference shows up with structure: GPT Image 2 is the safer choice for multi-line posters, menus, slides, infographics and interface mockups, where every word and box has to land in the right place.
Nano Banana Pro is the closest Google option for text-heavy work. Nano Banana 2 is good with short headlines but, as our poster shows, it sometimes adds copy of its own, so check every word before you publish.
Photos and portraits: Nano Banana feels more natural
For people, food, products and places, all three are photorealistic. The Nano Banana models tend to give relaxed, camera-like results with soft light. GPT Image 2 often makes stylistic choices you did not ask for, such as a posed expression or a dramatic crop. Neither is wrong, but if you want an image that looks like a quick real photo, start with Nano Banana 2.
Editing your own photos
Both models edit images when you attach a reference: change the background, the outfit, the lighting or the style, and keep the subject. On this site each one takes up to 4 reference images per request.
Editing by plain instruction is what made Nano Banana popular, and it is very good at keeping a face or a product unchanged while the scene around it changes. GPT Image 2 is strong at edits that involve text, such as replacing the words on a sign or a label. For a step-by-step look at photo edits, see the Nano Banana photo editing prompts.
Price per image on Nano Banana AI
Every model on this site draws from one credit balance, so you can compare them without separate subscriptions.
| Model | 1K | 2K | 4K | Included from |
|---|---|---|---|---|
| GPT Image 2 | 30 credits | 50 credits | 80 credits | Premium plan |
| Nano Banana 2 | 40 credits | 60 credits | 90 credits | Premium plan |
| Nano Banana Pro | 90 credits | 90 credits | 120 credits | Pro plan |
| Nano Banana | 20 credits | - | - | Standard plan |
4K needs the Pro plan on every model. Full plan details are on the pricing page.
GPT Image 2 vs Nano Banana 2 vs Nano Banana Pro: which to use
- Posters, ads with copy, menus, slides, diagrams: GPT Image 2, or Nano Banana Pro if you prefer Google’s look.
- Social photos, lifestyle shots, quick edits, lots of variations: Nano Banana 2.
- A final hero image, print, or 4K product shots: Nano Banana Pro or GPT Image 2 at 4K.
- Cheapest drafts: the original Nano Banana or Nano Banana 2 Lite at 20 credits.
A practical habit: draft with Nano Banana 2, then rerun the winning prompt on GPT Image 2 or Pro for the final version.
What about ChatGPT and Gemini?
“Nano Banana vs ChatGPT” usually means the Gemini app against ChatGPT. ChatGPT creates images with GPT Image 2. The Gemini app creates them with Nano Banana 2 and lets paid Google AI subscribers redo an image with Nano Banana Pro. The models are the same ones compared here; the apps add their own limits, and both apps can add visible watermarks. Here you can use both models from one account without a ChatGPT or Google subscription.
GPT Image 2 vs Nano Banana FAQ
Is GPT Image 2 better than Nano Banana?
It depends on the image. GPT Image 2 is better for text-heavy designs and exact layouts. Nano Banana 2 is faster and gives more natural-looking photos, and Nano Banana Pro is the strongest Google model for final 4K images.
Is Nano Banana better than ChatGPT for images?
For realistic photos and quick photo edits, many people prefer Nano Banana. For posters, infographics and anything with a lot of text, ChatGPT’s GPT Image 2 is usually more reliable.
Which is cheaper, GPT Image 2 or Nano Banana?
On Nano Banana AI a 1K image costs 30 credits with GPT Image 2, 40 with Nano Banana 2, 90 with Nano Banana Pro and 20 with the original Nano Banana.
Can I use GPT Image 2 and Nano Banana in one place?
Yes. The Premium plan ($19.99/month) includes GPT Image 2 and Nano Banana 2 on one credit balance, and the Pro plan adds Nano Banana Pro and 4K output.
Which is faster, GPT Image 2 or Nano Banana 2?
Nano Banana 2. It is Google’s Flash-tier model built for speed, while GPT Image 2 reasons about the layout before it renders.