Comparison · Image models
FLUX.2 [pro] vs Nano Banana Pro
FLUX.2 [pro] or Nano Banana Pro? Photorealism and 8 references versus 4K, 14 references and reliable in-image text. Differences, pricing and tests.
Specs side by side
| FLUX.2 [pro] | Nano Banana Pro | |
|---|---|---|
| Vendor | Black Forest Labs | |
| Type | Image | Image |
| Modes | text-to-image multi-image-reference | text-to-image image-to-image |
| Released | 2025-11 | 2025-11 |
| Resolutions | 1K, 2K | 1K, 2K, 4K |
| Aspect ratios | 1:1, 4:3, 3:4, 16:9, 9:16, 3:2, 2:3, auto | 1:1, 2:3, 3:2, 3:4, 4:3, 4:5, 5:4, 9:16, 16:9, 21:9 |
| Reference images | up to 8 | up to 14 |
| Prompt length | up to 5,000 chars | up to 32,000 chars |
Price per unit and per clip
| Model | Variant | Rate |
|---|---|---|
| FLUX.2 [pro] | 1K | $0.0688 / image |
| 2K | $0.0963 / image | |
| Nano Banana Pro | 1K | $0.0747 / image |
| 2K | $0.0747 / image | |
| 4K | $0.0813 / image |
Prices exclude taxes and are charged from your prepaid USD balance. Failed generations cost nothing.
Pick FLUX.2 [pro] for photorealistic images and scenes built from several references, especially at 1K, where it is slightly cheaper. Pick Nano Banana Pro when the graphic carries text with accented characters, or when you need 4K or more references. In my test Nano Banana Pro won clearly, mostly on text rendering, where FLUX.2 stumbles.
Key differences
- Resolution. FLUX.2 [pro] on Jantaris offers 1K and 2K. Nano Banana Pro offers 1K, 2K and 4K.
- References. FLUX.2 [pro] takes up to 8 images, Nano Banana Pro up to 14.
- Aspect ratios. FLUX.2 [pro] has 7 (plus
autowhen you send input images). Nano Banana Pro has 10, including 4:5, 5:4 and 21:9. - Prompt. Up to 5,000 characters in FLUX.2 [pro], 32,000 in Nano Banana Pro.
- Accented text. In my tests FLUX.2 [pro] misplaced diacritics in Polish words; Nano Banana Pro wrote them correctly.
- Shared. One image per request, text-to-image and reference-based generation.
When to pick FLUX.2 [pro]
- A photorealistic product or lifestyle shot without text.
- A scene assembled from several photos: the room from one, furniture from others.
- A 1K illustration series when cost matters.
- Graphics with short English text.
When to pick Nano Banana Pro
- Posters, flyers or covers with text in languages that use diacritics.
- 4K output for print.
- Projects with more than 8 references.
- Very long, detailed prompts.
Cost in practice
At 1K Nano Banana Pro costs about 9% more than FLUX.2 [pro]. At 2K it flips: FLUX.2 [pro] costs about 29% more, because its rate rises with resolution while Nano Banana Pro charges 1K and 2K the same. Only Nano Banana Pro has 4K, priced just above its 2K. On Jantaris, references do not raise the price in either model. Rates: from $0.0688 per image and from $0.0747 per image (both at 1K); all tiers on /pricing.
Results from my image ranking (Polish blog, same five prompts): Nano Banana Pro 9.0/10, FLUX.2 [pro] 7.6/10. Without text FLUX.2 did well (8.5 each for the illustration, portrait and food shot) and was faster (13 s against 18.6 s on another provider). The Polish sign earned it 5/10, and in a typography test it made at least four errors across three graphics. Wider comparison: GPT Image 2.5 vs Nano Banana Pro vs FLUX.2.
FAQ
FLUX.2 or Nano Banana Pro: which is better?
For graphics with text and for 4K, Nano Banana Pro. For photorealistic images without text and scenes from several references, FLUX.2 [pro], especially at 1K.
Does FLUX.2 [pro] handle text with diacritics?
Poorly in my tests: accents went missing or landed on the wrong letters. Leave space in the layout and add the text in an editor.
Which one is cheaper?
At 1K, FLUX.2 [pro], by a few percent. At 2K, Nano Banana Pro.
Does FLUX.2 [pro] do 4K?
Not on Jantaris; the maximum is 2K. Larger output (up to 4 MP) is on FLUX.2 [max].
Vendor examples
FLUX.2 [pro]
Nano Banana Pro
Official examples from the model vendors, not our generations.