AI image model comparison
Riverflow V2.5 Pro vs Nano Banana
Image quality, cost per image, and editing features compared side by side. Or skip the guesswork and generate with both.
Sourceful
Riverflow V2.5 Pro
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
Gemini 2.5 Flash Image, a.k.a. "Nano Banana," is now generally available. It is a state of the art image generation model with contextual understanding.
- Per image
- $0.039
- Output / 1M
- $30
- Image Elo
- 1187
At a glance
Quick verdict
Which model wins on the things that matter most when you're making images.
Cheaper per image
Nano Banana
$0.039 vs $0.13, 3.4x cheaper
Better image quality
Riverflow V2.5 Pro
1366 vs 1187 Elo in blind votes
Better at editing
Not available
Only one editing score is available
Newer release
Riverflow V2.5 Pro
Released June 4, 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
Nano Banana#10 · 55.6% wins1187Image editing
Nano BananaNot availableGraphic design
Nano Banana#10 · 56.9% wins1168Logos
Nano Banana#11 · 51.4% wins1170Pricing
Riverflow V2.5 Pro vs Nano Banana price per image
What each image actually costs, plus the underlying API rates. Cheaper option highlighted.
| Metric | Nano Banana | |
|---|---|---|
| Cost per imageEstimated, ~1 megapixel (1024×1024) | $0.13 | $0.039 |
| Image outputPer 1M image tokens | $31.14 | $30 |
| Tokens per imageHow many image tokens one ~1MP image uses | 4,175 | 1,290 |
| Prompt textPer 1M input tokens | Included | $0.30 |
| Reference imagesPer 1M input image tokens | Included | $0.30 |
What it costs in practice
Estimated totals at standard resolution.
Single image
1 image
Nano Banana$0.039Social media batch
50 images
Nano Banana$1.93Product catalog
1,000 images
Nano Banana$38.70Specs
Inputs, outputs, and limits
What each model accepts, what it gives back, and how long your prompt can be.
| Metric | Nano Banana | |
|---|---|---|
| Accepts | Image, Text | Image, Text |
| Produces | Image | Image, Text |
| Max prompt lengthText plus reference images | 33K tokens | 33K tokens |
| Reasoning step | Always on | No |
| Release date | June 4, 2026 | October 7, 2025 |
Features
Supported features
Creative controls available for each model.
| Metric | Nano Banana | |
|---|---|---|
| Image editingAccepts reference or source images | Supported | Supported |
| Text alongside imagesCan explain or caption what it made | Not supported | Supported |
| Thinks before drawingPlans the image with a reasoning step | Supported | Not supported |
| Reproducible seedsSame seed, same image | Not supported | Supported |
| Temperature controlTrade consistency for variety | Not supported | Supported |
Keep exploring
More on these models
Other head-to-heads, the full model page, and the alternatives list for each model.
- Riverflow V2.5 Pro vs MAI-Image-2.6
- Riverflow V2.5 Pro vs MAI-Image-2.6 Flash
- Riverflow V2.5 Pro vs Nano Banana 2
- Riverflow V2.5 Pro vs Nano Banana Pro
- Riverflow V2.5 Pro vs MAI-Image-2.5
- Riverflow V2.5 Pro vs FLUX.2 Flex
- Riverflow V2.5 Pro vs FLUX.2 Pro
- Riverflow V2.5 Pro vs GPT Image 2.5 Sunburst
- Riverflow V2.5 Pro vs Seedream 4.5
- Riverflow V2.5 Pro vs Seedream 5.0 Flash
- Riverflow V2.5 Pro vs Seedream 5.0 Pro
- Riverflow V2.5 Pro vs Grok Imagine Image 2.0
- Riverflow V2.5 Pro vs Seedream 5.0 Lite
- Riverflow V2.5 Pro vs FLUX.3 Image
- Riverflow V2.5 Pro vs Grok Imagine Image Quality
- Riverflow V2.5 Pro vs Qwen Image 3
- Riverflow V2.5 Pro vs FLUX.2 Max
Nano BananaView full model details- Nano Banana vs GPT Image 2.5 Sunburst
- Nano Banana vs Nano Banana 2
- Nano Banana vs Seedream 4.5
- Nano Banana vs Nano Banana 2 Lite
- Nano Banana vs Muse Image
- Nano Banana vs GPT-5.4 Image 2
- Nano Banana vs GPT Image 2
- Nano Banana vs MAI-Image-2.6
- Nano Banana vs MAI-Image-2.6 Flash
- Nano Banana vs Seedream 5.0 Flash
- Nano Banana vs Nano Banana Pro
- Nano Banana vs Ming Image 0.1 Design
- Nano Banana vs FLUX.2 Flex
- Nano Banana vs FLUX.2 Pro
- Nano Banana vs Seedream 5.0 Pro
- Nano Banana vs Grok Imagine Image 2.0
- Nano Banana vs Seedream 5.0 Lite
- Nano Banana vs Recraft V4.1 Flash
- Nano Banana vs FLUX.3 Image
- Nano Banana vs Grok Imagine Image Quality
- Nano Banana vs Qwen Image 3
- Nano Banana vs FLUX.2 Max
Our take
Nano Banana is 3.4x 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 Riverflow V2.5 Pro or Nano Banana cheaper?
Nano Banana is cheaper at about $0.039 per standard image, compared with $0.13 for Riverflow V2.5 Pro. For 1,000 images that is $38.70 versus $130.
Which makes better images, Riverflow V2.5 Pro or Nano Banana?
In blind votes on Design Arena, Riverflow V2.5 Pro has an image generation Elo of 1366 and Nano Banana has 1187, putting Riverflow V2.5 Pro ahead. Taste varies by style, so the best test is running your own prompts through both.
Can Riverflow V2.5 Pro and Nano Banana 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 Riverflow V2.5 Pro and Nano Banana at the same time?
Yes. Shortcut Chat sends one prompt to multiple image models at once, so you can see Riverflow V2.5 Pro and Nano Banana results side by side and keep the one you like.
Why choose? Generate with both.
Send one prompt to Riverflow V2.5 Pro and Nano Banana at the same time. See both images side by side and keep the one you like.