Nano Banana 2.1 vs Nano Banana vs Nano Banana Pro: Same Prompt, Three Generations

Google released Nano Banana 2.1 on October 6, 2026 as the update to Nano Banana 2 (Gemini 3.1 Flash Image), and deprecated Nano Banana 2 the same day. With 2.1 now in the CVY.AI image generator, the dropdown lists Nano Banana, Nano Banana 2.1 and Nano Banana Pro side by side. Three names that differ by a suffix are easy to second-guess, so we put all three through the same set of prompts to see where the new release actually changed.

The method is the same as in our GPT Image 2.5 comparison: four prompts, each run once through all three models at 1K (the original only offers 1K), keeping whatever came out. No re-rolls, no best-of-four. Each section shows the results left to right: Nano Banana, Nano Banana 2.1, Nano Banana Pro.

What the three generations are

A new account gets 10 credits, enough for two 2.1 images. The $1.49 trial pack is 50 credits, which is 16 Nano Banana images, 12 Nano Banana 2.1 or 6 Nano Banana Pro.

Test 1: a documentary portrait

Candid photograph of a man in his sixties repairing a wooden fishing boat on a pebble beach, early morning side light, wool sweater, weathered hands holding a plane, boat hull in flaking blue paint, calm grey sea behind, shallow depth of field, 50mm lens, natural color.

All three followed the brief: the sweater, the plane, the pebbles, the grey sea, the blue boat. The gap is in light and texture.

• Nano Banana has the flattest light, more overcast noon than early morning side light, and the hull is mostly solid blue with little of the flaking the prompt asked for. The figure and the action are fine; the frame just lacks a layer of photographic depth.
• Nano Banana 2.1 looks most like a reportage frame: the man bent over the plane, shavings at his feet, convincingly weathered paint, the sea and headland softly out of focus. It added a black beanie nobody asked for, which does no harm.
• Nano Banana Pro nails the morning light, warm and raking across the figure and the hull, with the finest paint-flake texture of the three, sharp pebbles and even gulls. If one of these is going into a layout, it is this one.

Pro is still the best photograph here, but 2.1 gets within touching distance for half the credits, and the original is clearly a step behind.

Test 2: a poster with two lines of text

A minimalist concert poster. Large headline text "NIGHT TIDES" at the top in a bold serif, below it smaller text "Live at the Harbor · Saturday 8 PM". Illustration of a lighthouse on a cliff under a navy sky with a thin crescent moon, limited palette of navy, cream and coral, flat vector style, clean margins.

Every line of text is correct in all three, including the middle dot and "8 PM", and even the original got it right. Text rendering is no longer the dividing line in this family either; the differences are back to design.

• Nano Banana is the most literal: a thin border, headline, subheading, a lighthouse with red beams. Correct palette, tidy layout, flat.
• Nano Banana 2.1 added a beam of light sweeping across the frame and a coral cliff, set the subheading in coral, and gave the whole thing tension. The most poster-like of the three.
• Nano Banana Pro put the title in a cream band, uppercased the subheading on its own initiative, and drew a neat lighthouse and waves. A safe, finished piece.

2.1 wins this one. If you want strict minimalism, the original is actually the most obedient.

Test 3: a product shot you can count

Product photo on a matte sage-green background: a ceramic pour-over coffee dripper in cream glaze sitting on a glass carafe, exactly three coffee beans to the left of the carafe, a folded white paper filter leaning against the right side, soft top light with one gentle shadow falling to the lower left, no steam, no text, centered composition.

This prompt is an instruction-following test with conditions you can tick off: exactly three beans, a folded filter leaning on the right, a shadow to the lower left, no text.

• Nano Banana placed four beans, and the filter is a pleated wave-style dripper standing upright rather than a folded filter leaning against anything. Everything else checks out, but it missed two of the countable instructions.
• Nano Banana 2.1 got three beans, a folded filter leaning on the right of the carafe, soft top light and a centered composition. The only quibble is that the dripper reads more like a handled cup than a ribbed dripper.
• Nano Banana Pro got three beans, the leaning filter and a clearly defined shadow to the lower left, and its dripper looks most like the real product. The most complete of the three.

2.1 and Pro both pass the bean count; the original misses by one.

Test 4: a 21:9 panorama

Panoramic view of rice terraces at dawn after rain, mist drifting through the valley, mirror-like flooded paddies reflecting a pale orange sky, a single farmer with a conical hat walking along a ridge in the middle distance, a few wooden stilt houses on the far left, soft diffused light, fine detail in the water reflections and terrace edges.

Google's release notes for 2.1 single out wide and panoramic aspect ratios, so this group went in. The strip is stacked top to bottom here because of the width, same order as before. All three models returned a proper 21:9 frame with every element present: terraces, reflections, mist, stilt houses on the left, a figure on a ridge.

• Nano Banana draws fine terrace lines, but the mist is thin and the farmer is a small dark dot with no visible hat. The whole frame is a little plain.
• Nano Banana 2.1 has the most convincing drifting mist, a farmer with a conical hat and carrying pole right on the ridge, and detail in both the reflections and the terrace edges. It captures "dawn after rain" best.
• Nano Banana Pro has the most mirror-like sky reflection and the clearest houses, and added a water buffalo next to the farmer. Not requested, though many people would count it as a bonus.

On the panorama, 2.1 and Pro each have their strengths; the original looks thin by comparison.

Which one to use

• Most everyday generation: Nano Banana 2.1. It won two of the four tests and sat right behind Pro in the other two, costs 4 credits at 1K, and offers 2K and 4K. It is now the default pick in the Google column.
• Photographic finals that will be scrutinized, and editing a photo you already have: Nano Banana Pro. Its light and texture still lead in the side-lit portrait, and reference-image editing remains its strongest suit, which this piece did not test.
• The cheapest possible 1K draft: the original Nano Banana. One credit less than 2.1; in this round it had the flattest light and missed two of the countable instructions.

All twelve images above are single, unedited runs. Your results will differ run to run, which is the honest caveat with any comparison like this. The quickest way to see for yourself is to open the generator with one of these prompts filled in and switch the model from the dropdown:

• Try the portrait prompt with Nano Banana 2.1
• Try the 21:9 panorama prompt with Nano Banana 2.1

New visitors can generate one GPT Image 2.5 Flare image before signing up; Nano Banana 2.1 needs an account, and sign-in is free and comes with 10 credits, enough for two tries.