compare-models
The best image generation APIs: 10 models in one table
Ten Nano Banana and GPT Image models in one table: resolutions, price per image, the task each model suits, and its average wait where measured.
Image generation models
10 models from Google and OpenAI through one API. Each has its own page, playground, price per image, and 7-day statistics. Pay only for finished images: a failed request is free.
- 7models
- 2makers
- from $0.015per image
- up to 4Kresolution
Couldn’t load the 7-day stats. The models and prices are here; we’ll show the time and the success rate once the stats load.
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Nano Banana 2.1
nano-banana-2.1Photorealism, lettering and reference-based edits — up to 4K
from $0.021K2K4K
Currently unavailable: generation is disabled; the price stays the same.
40 s average99% successful
unavailable
GPT Image 2.5
gpt-image-2.5Illustrations, maps and posters at 1K
from $0.0251K
Currently unavailable: generation is disabled; the price stays the same.
35 s average99% successful
unavailable
Nano Banana Pro
nano-banana-proComplex scenes, text in images and product shots — up to 4K
from $0.041K2K4K
Currently unavailable: generation is disabled; the price stays the same.
39 s average99% successful
unavailable
Nano Banana 2
nano-banana-2Photos and scenes that follow the prompt closely — up to 4K
from $0.0251K2K4K
Currently unavailable: generation is disabled; the price stays the same.
34 s average99% successful
unavailable
GPT Image 2
gpt-image-2Illustrations, comics and stickers at 1K
from $0.021K
Currently unavailable: generation is disabled; the price stays the same.
43 s average90% successful
unavailable
Nano Banana Flash
nano-banana-flashGeneration and edits at 1K, with automatic aspect ratio
from $0.0151K
Currently unavailable: generation is disabled; the price stays the same.
29 s average98% successful
unavailable
Nano Banana 2 Lite
nano-banana-2-liteGeneration and edits at 1K with ten explicit aspect ratios
from $0.0151K
Currently unavailable: generation is disabled; the price stays the same.
32 s average92% successful
Nothing found for “”
Try a model name, an aspect ratio (16:9), or a resolution (4K).
01How to choose
How to choose a model
The questions that most often decide the choice. The answers come from catalog data.
- Budget. The lowest price is for Nano Banana Flash and Nano Banana 2 Lite: from $0.015. For Nano Banana 2.1 and GPT Image 2, from $0.02; for Nano Banana 2 and GPT Image 2.5, from $0.025; for Nano Banana Pro, from $0.04.
- Resolution. 6 models generate at 1K, 2K, and 4K: Nano Banana Pro, Nano Banana 2, Nano Banana 2.1, GPT Image 2 HD, GPT Image 2.5 Sunburst, and GPT Image 2.5 Flare. Nano Banana Flash, Nano Banana 2 Lite, GPT Image 2, and GPT Image 2.5 generate only at 1K. 1K is enough for previews; for websites and print, choose 2K or 4K.
- Aspect ratio. The elongated 8:1 and 4:1 and the tall 1:4 and 1:8 are available on Nano Banana 2 and Nano Banana 2.1. The
automode, where the model picks the aspect ratio, is available on 4 Google models: Nano Banana Pro, Nano Banana 2, Nano Banana 2.1, and Nano Banana Flash. - Reference images. All 10 models accept up to 14 reference images. How to upload files and describe an edit is in the “Image editing” section.
- Speed. On average from 29 to 43 seconds over the last 7 days, depending on the model. Fastest to respond: Nano Banana Flash; slowest: GPT Image 2.
02Comparison
Models side by side
Resolutions, aspect ratios, reference images, price, and average time over 7 days. The name links to the model page.
| Model | Maker | Resolutions | Aspect ratios | Reference images | Price from | Time |
|---|---|---|---|---|---|---|
Nano Banana Pronano-banana-pro | 1K, 2K, 4K | 10 + auto | up to 14 | from $0.04 | 39 s average | |
Nano Banana 2nano-banana-2 | 1K, 2K, 4K | 14 + auto | up to 14 | from $0.025 | 34 s average | |
Nano Banana 2.1 Newnano-banana-2.1 | 1K, 2K, 4K | 14 + auto | up to 14 | from $0.02 | 40 s average | |
Nano Banana Flashnano-banana-flash | 1K | 10 + auto | up to 14 | from $0.015 | 29 s average | |
Nano Banana 2 Litenano-banana-2-lite | 1K | 10 | up to 14 | from $0.015 | 32 s average | |
GPT Image 2gpt-image-2 | OpenAI | 1K | 10 | up to 14 | from $0.02 | 43 s average |
GPT Image 2.5gpt-image-2.5 | OpenAI | 1K | 13 | up to 14 | from $0.025 | 35 s average |
Aspect ratios are counted without auto: it is available on 4 Google models; Nano Banana 2 Lite doesn’t have it. The price depends on the resolution; the full table is on the “Pricing” page.
03FAQ
Questions about models
How much does one image cost?
The price depends on the model and resolution: the lowest is $0.015, for Nano Banana Flash and Nano Banana 2 Lite. Prices for each resolution are on the “Pricing” page and on the model page; you pay only for finished images.
What happens if a generation fails?
A failed request is free: the amount goes straight back to your balance. Both the charge and the refund show up in your transaction history.
How do Google models differ from OpenAI models?
Among Google’s models, Nano Banana Pro, Nano Banana 2, and Nano Banana 2.1 generate at 1K, 2K, and 4K, while Nano Banana Flash and Nano Banana 2 Lite generate only at 1K. The
auto mode is available on 4 Google models; Nano Banana 2 Lite doesn’t have it; Nano Banana 2 and Nano Banana 2.1 have the elongated aspect ratios 8:1, 4:1, 1:4, and 1:8. Among OpenAI’s models, GPT Image 2 and GPT Image 2.5 generate only at 1K, while GPT Image 2 HD, GPT Image 2.5 Sunburst, and GPT Image 2.5 Flare generate at 1K, 2K, and 4K; there is no auto mode. All models are available through one API and one balance.Do different models need different API keys?
No: one key and one balance for all models. You choose the model with the
model field in the request.How do I choose a model?
Open the model page: it has the model’s capabilities, the price for each resolution, and the playground. A quick pick by budget, resolution, and aspect ratio is in the “How to choose a model” block above.
Do you offer terms for high volumes?
Yes. Send a request below and we’ll work out a price per image for your volume; this usually makes sense from $1,000 per month.
04Articles
Read about the models
compare-models
Nano Banana Pro vs GPT Image 2.5: a test on identical prompts
A poster, an infographic, and a product card on Nano Banana Pro and GPT Image 2.5: one prompt, one attempt each; prices, average waits where measured, and code.
prices-and-billing
How much do 10,000 AI images cost? Work out a budget
How to work out a monthly image budget: the formula, examples across models and resolutions, what stays out of the bill, and a template for your own counts.
High volumes
High volumes? Leave your contact and we’ll work out custom terms
A per-image price for your volume, limits for your traffic and a direct line on Telegram.
High-volume terms