AI image model comparison

Nano Banana Pro vs Riverflow V2.5 Pro

Image quality, cost per image, and editing features compared side by side. Or skip the guesswork and generate with both.

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Google

Nano Banana Pro

Gemini 3 Pro Image

Nano Banana Pro is Google’s most advanced image-generation and editing model, built on Gemini 3 Pro.

Per image
$0.13
Output / 1M
$120
Image Elo
1244

Riverflow V2.5 Pro is the most powerful variant of Sourceful's Riverflow 2.5 lineup, best for top-tier control and quality-sensitive outputs.

Per image
$0.13
Output / 1M
$31.14
Image Elo
1366

At a glance

Quick verdict

Which model wins on the things that matter most when you're making images.

Cheaper per image

Tie

Same price per image

Better image quality

sourceful logo

Riverflow V2.5 Pro

1366 vs 1244 Elo in blind votes

Better at editing

sourceful logo

Riverflow V2.5 Pro

1310 vs 1252 Elo on edits

Newer release

google logo

Nano Banana Pro

Released June 18, 2026

Quality

Image quality rankings

Elo ratings from Design Arena, where people vote between two anonymous images made from the same prompt. Higher is better.

Image generation

google logoNano Banana Pro#5 · 62.1% wins1244
sourceful logoRiverflow V2.5 Pro#1 · 69.1% wins1366

Image editing

google logoNano Banana Pro#4 · 66% wins1252
sourceful logoRiverflow V2.5 Pro#1 · 63.3% wins1310

Graphic design

google logoNano Banana Pro#5 · 65.8% wins1250
sourceful logoRiverflow V2.5 Pro#1 · 75.2% wins1418

Logos

google logoNano Banana Pro#6 · 61% wins1240
sourceful logoRiverflow V2.5 Pro#1 · 64.1% wins1296

Pricing

Nano Banana Pro vs Riverflow V2.5 Pro price per image

What each image actually costs, plus the underlying API rates. Cheaper option highlighted.

Metricgoogle logoNano Banana Prosourceful logoRiverflow V2.5 Pro
Cost per imageEstimated, ~1 megapixel (1024×1024)$0.13$0.13
Image outputPer 1M image tokens$120$31.14
Tokens per imageHow many image tokens one ~1MP image uses1,1204,175
Prompt textPer 1M input tokens$2Included
Reference imagesPer 1M input image tokens$2Included

What it costs in practice

Estimated totals at standard resolution.

Single image

1 image

google logoNano Banana Pro$0.13
sourceful logoRiverflow V2.5 Pro$0.13

Social media batch

50 images

google logoNano Banana Pro$6.72
sourceful logoRiverflow V2.5 Pro$6.50

Product catalog

1,000 images

google logoNano Banana Pro$134.40
sourceful logoRiverflow V2.5 Pro$130

Specs

Inputs, outputs, and limits

What each model accepts, what it gives back, and how long your prompt can be.

Metricgoogle logoNano Banana Prosourceful logoRiverflow V2.5 Pro
AcceptsImage, TextImage, Text
ProducesImage, TextImage
Max prompt lengthText plus reference images131K tokens33K tokens
Reasoning stepAlways onAlways on
Release dateJune 18, 2026June 4, 2026

Features

Supported features

Creative controls available for each model.

Metricgoogle logoNano Banana Prosourceful logoRiverflow V2.5 Pro
Image editingAccepts reference or source imagesSupportedSupported
Text alongside imagesCan explain or caption what it madeSupportedNot supported
Thinks before drawingPlans the image with a reasoning stepSupportedSupported
Reproducible seedsSame seed, same imageSupportedNot supported
Temperature controlTrade consistency for varietySupportedNot supported

Our take

Riverflow V2.5 Pro is 1.0x cheaper per image. The right pick depends on your workload, so the quickest way to settle it is to send the same prompt to both and compare.

FAQ

Frequently asked questions

Is Nano Banana Pro or Riverflow V2.5 Pro cheaper?

Riverflow V2.5 Pro is cheaper at about $0.13 per standard image, compared with $0.13 for Nano Banana Pro. For 1,000 images that is $130 versus $134.40.

Which makes better images, Nano Banana Pro or Riverflow V2.5 Pro?

In blind votes on Design Arena, Nano Banana Pro has an image generation Elo of 1244 and Riverflow V2.5 Pro has 1366, putting Riverflow V2.5 Pro ahead. Taste varies by style, so the best test is running your own prompts through both.

Can Nano Banana Pro and Riverflow V2.5 Pro edit existing images?

Yes. Both accept reference images, so you can upload a photo and ask for changes like a new background, different lighting, or added text.

Can I use Nano Banana Pro and Riverflow V2.5 Pro at the same time?

Yes. Shortcut Chat sends one prompt to multiple image models at once, so you can see Nano Banana Pro and Riverflow V2.5 Pro results side by side and keep the one you like.

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Why choose? Generate with both.

Send one prompt to Nano Banana Pro and Riverflow V2.5 Pro at the same time. See both images side by side and keep the one you like.