Nano Banana 2
Best for high-quality images fast, clear text and reference edits.

What Nano Banana 2 is good at
Nano Banana 2 is the public name of Google’s Gemini 3.1 Flash Image. It produces Pro-level images at Flash speed, up to 4K. Phosphene also runs Nano Banana 2 Lite: the same generation, about twice as fast and at a lower credit price.
Strong at
- Speed: a typical image is ready in about 6 seconds, Lite in about 3
- Realistic photos and clean, legible text
- Editing from reference photos
- 4K output on the full model
Keep in mind
- Lite is limited to 1K output; choose the full model for 2K or 4K
- Ranks below GPT Image 2.5 and MAI-Image 2.6 on blind quality votes
Versions in Phosphene
- 5 credits per image
Nano Banana 2
Pro-quality images at Flash speed. 4K output, enhanced realism and text rendering.
- 3 credits per image
Nano Banana 2 Lite
Same generation as Nano Banana 2, about twice as fast and half the price.
Prices are per image at 1K and standard quality. Higher resolution costs more; the composer shows the exact price before you generate.
Questions about Nano Banana 2
- How much does Nano Banana 2 cost in Phosphene?
- Nano Banana 2: 5 credits per image. Nano Banana 2 Lite: 3 credits per image. Prices are for a 1K image at standard quality.
- Is Nano Banana 2 the same as Gemini 3.1 Flash Image?
- Yes. Nano Banana 2 is the public nickname for Google’s Gemini 3.1 Flash Image model.
- Should I use Nano Banana 2 or Nano Banana 2 Lite?
- Lite is the same generation, about twice as fast and cheaper per image, at 1K resolution. Pick the full model when you need 2K or 4K output.
- Do I need a Google account or API key?
- No. Phosphene runs the model for you and charges credits per image from your Phosphene balance.
Other image models
- GPT Image 2.5Prompt adherence, readable text, product and brand images
- Seedream 5Campaign images, multilingual typography and realism
- MAI-Image 2.6Photoreal people, complex scenes and accurate text
- FLUX 3Text-rich layouts, photoreal scenes and edits from many references