Nano Banana 2 vs GPT Image 1.5

Nano Banana 2 and GPT Image 1.5 run in the same chat on one credit balance. Here is what each makes and what it costs.

Side by side
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Side by side

Prices and specs come from each model’s current settings.

Nano Banana 2GPT Image 1.5
KindImage modelImage model
Made forGemini 3.1 Flash Image — Fast Generation and Plain-Language EditsOpenAI's Image Model — Perfect Text, Editing, and Multi-Object Scenes
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Nano Banana 2

Nano Banana 2 is Google's Gemini 3.1 Flash Image model. It creates images from a text prompt and edits existing ones from plain-language instructions — say 'add a sunset glow', 'replace the chair with a throne' or 'remove the background' and it applies the change. Attach reference images and it switches to editing automatically. Nano Banana 2 Lite is a lighter, cheaper variant.

Intuitive Natural Language Editing
Describe the change in plain language and Nano Banana 2 applies it — object swaps, background changes, facial refinements, style shifts.
Text-to-Image Too
Not only edits: describe a scene from scratch and Nano Banana 2 draws it; attach references and it edits instead.
Precision Object & Background Editing
Pixel-level object replacement, background modification, and facial refinement without distortions across iterations.
Physics-Aware Outputs
Edits maintain coherent lighting, natural shadows, and correct spatial relationships — outputs look real, not pasted.
All about Nano Banana 2

GPT Image 1.5

GPT Image 1.5 is OpenAI's image generation model — the same model powering image creation in ChatGPT-4o. It excels at accurate text rendering inside images, image editing with mask-based inpainting, and complex multi-object scenes (10–20 distinct objects). Three quality levels (low/medium/high) let you balance speed and detail. Outputs in PNG, JPEG, or WebP with optional background transparency.

Accurate Text Rendering
Renders legible, correctly spelled text inside images — signs, labels, posters, UI mockups, and book covers without the glitchy text issue.
Image Editing & Inpainting
Edit existing images using mask-based inpainting — replace specific areas, change backgrounds, or add/remove objects while preserving the rest.
Multi-Object Scenes
Generates scenes with 10–20 distinct objects with consistent spatial relationships, accurate details, and world-knowledge integration.
All about GPT Image 1.5

Questions

It depends on the job. Nano Banana 2: Gemini 3.1 Flash Image — Fast Generation and Plain-Language Edits. GPT Image 1.5: OpenAI's Image Model — Perfect Text, Editing, and Multi-Object Scenes. Both are on The Factory on one credit balance, so you can run the same prompt on each and keep the better result.
Yes. New accounts get welcome credits that work with every model, including Nano Banana 2 and GPT Image 1.5.