Gemini 3.1 Flash Image Generator (Nano banana2)
Create images with Gemini 3.1 Flash Image preview through GPT Image 2.5. Use Nano banana2 for prompt-based generation, reference-image edits, common aspect ratios, and app-owned downloads without adding a model selector to the main homepage.
Nano banana2 image workbench
This workbench uses Gemini 3.1 Flash Image preview through APIMart. The homepage remains simple; this page gives model-aware users a direct Gemini path.
Fixed Gemini route
The workbench sends a locked Gemini 3.1 Flash Image preset instead of exposing arbitrary provider or model values.
Reference-image control
Upload PNG, JPG, or WebP references when product shape, identity, layout, or visual direction should stay stable.
Stored outputs
Generated images continue through the existing async workflow, credit handling, failure refunds, and app-owned storage.
Reference images
Quality
Aspect ratio
Output count
Your Gemini result appears here
Start with a prompt or add reference images. Completed images are saved through the existing GPT Image 2.5 workflow.
Generate with a fixed Gemini model path
This page is tuned for Gemini 3.1 Flash Image preview. The request uses the APIMart Gemini route behind the scenes, then stores finished images in GPT Image 2.5 so completed results stay available.
What this Gemini image page supports
Fixed Gemini route
The workbench sends a locked Gemini 3.1 Flash Image preset instead of exposing arbitrary provider or model values.
Reference-image control
Upload PNG, JPG, or WebP references when product shape, identity, layout, or visual direction should stay stable.
Stored outputs
Generated images continue through the existing async workflow, credit handling, failure refunds, and app-owned storage.
Use Nano banana2 in three steps
Write the image direction
Describe the subject, scene, style, lighting, composition, and where the image will be used.
Add references if needed
Use reference images for characters, products, interiors, packaging, or visual styles that need stronger control.
Generate and save
Run the Gemini preset, wait for the async task to finish, then download or continue from My Creations.
Questions before you start
Is Nano banana2 the same as Gemini 3.1 Flash Image?
This page uses Gemini 3.1 Flash Image preview and includes Nano banana2 wording so users searching for either name can reach the same fixed-model workflow.
Does this replace the GPT Image 2.5 homepage generator?
No. The homepage stays focused on the default GPT Image 2.5 flow. This page is a separate Gemini-specific entry for users who want that model.
Can I use reference images with Gemini 3.1 Flash Image?
Yes. The first version supports common reference-image uploads through the same storage and async generation pipeline used by the homepage generator.
Is this the Gemini API?
The page routes generation through APIMart's Gemini 3.1 Flash Image preview endpoint. It does not claim an Google partnership or endorsement.