Nano Banana 2 (Gemini 3.1 Flash Image Preview) vs Nano Banana Pro (Gemini 3 Pro Image Preview)
A side-by-side comparison of two image models — real specs, pricing, strengths and weaknesses, and a clear verdict on which to choose. Kept current by our agents.
Quick verdict: which should you choose?
Choose Nano Banana 2 (Gemini 3.1 Flash Image Preview) if you need
- ✓lower output price of $3 per 1M tokens for cost-sensitive use
- ✓longer 131072 token context for extended multimodal inputs
- ✓fast responses suitable for preview workflows and efficient image+text handling
- ✓strong long-context multimodal support in a preview setting
Choose Nano Banana Pro (Gemini 3 Pro Image Preview) if you need
- ✓preview access to advanced Gemini vision features for complex visual queries
- ✓strong image-text integration suited to detailed scene or document analysis
- ✓higher positioning for advanced image and text tasks despite shorter context
Verdict
Nano Banana 2 (Gemini 3.1 Flash Image Preview) leads on cost and context length with $3 per 1M tokens and 131072 tokens, suiting efficient preview workflows, while Nano Banana Pro (Gemini 3 Pro Image Preview) leads on advanced vision features for complex queries at $12 per 1M tokens and 65536 tokens. Both are proprietary Google preview models limited to image+text with unknown intelligence and speed metrics. The choice hinges on whether budget and longer context outweigh access to more advanced Gemini vision capabilities.
Nano Banana 2 (Gemini 3.1 Flash Image Preview) vs Nano Banana Pro (Gemini 3 Pro Image Preview): side by side
| Spec | Nano Banana 2 (Gemini 3.1 Flash Image Preview) | Nano Banana Pro (Gemini 3 Pro Image Preview) | Winner |
|---|---|---|---|
| Intelligence | — | — | Tie |
| Output speed | — | — | Tie |
| Output price | $3.00/1M | $12.00/1M | Nano Banana 2 (Gemini 3.1 Flash Image Preview) |
| Context | 131K | 66K | Nano Banana 2 (Gemini 3.1 Flash Image Preview) |
| Params | — | — | Tie |
| Type | Proprietary | Proprietary | Tie |
| Provider | Tie |
Detailed analysis
Pricing
Winner: Nano Banana 2 (Gemini 3.1 Flash Image Preview)Nano Banana 2 costs $3 per 1M output tokens while Nano Banana Pro costs $12 per 1M. This makes Nano Banana 2 the clear lower-cost option for equivalent proprietary Google image+text preview usage.
Context Window
Winner: Nano Banana 2 (Gemini 3.1 Flash Image Preview)Nano Banana 2 supports 131072 tokens compared to Nano Banana Pro's 65536 tokens. The doubled context in Nano Banana 2 enables longer image+text sessions without truncation.
Image-Text Capabilities
Winner: Nano Banana Pro (Gemini 3 Pro Image Preview)Nano Banana Pro emphasizes advanced Gemini vision features and complex visual query handling. Nano Banana 2 focuses on efficient handling and long-context support but notes less depth versus larger variants.
Limitations
Winner: TieBoth are preview models with potential reduced stability or feature completeness and are restricted to image+text modalities. Nano Banana 2 additionally notes limits on pure-text or code tasks while Nano Banana Pro notes its 65k context cap.
Nano Banana 2 (Gemini 3.1 Flash Image Preview)
Pros
- +Efficient handling of image+text inputs
- +Strong long-context multimodal support
- +Fast responses suitable for preview workflows
Cons
- –Preview model may have reduced feature completeness
- –Less depth on pure-text or code tasks versus larger Gemini variants
- –Image-focused specialization limits non-visual use cases
Nano Banana Pro (Gemini 3 Pro Image Preview)
Pros
- +Strong image-text integration
- +Handles complex visual queries
- +Extended context for scene or document analysis
- +Preview access to advanced Gemini vision features
Cons
- –Restricted to image and text modalities
- –65k token context limit
- –Preview version may lack full stability or features
Summary: Nano Banana 2 (Gemini 3.1 Flash Image Preview) vs Nano Banana Pro (Gemini 3 Pro Image Preview)
Select Nano Banana 2 (Gemini 3.1 Flash Image Preview) when lower price and longer context are priorities for efficient image+text preview work. Select Nano Banana Pro (Gemini 3 Pro Image Preview) when advanced vision features for complex queries justify the higher cost and shorter context.
Frequently asked questions
Nano Banana 2 (Gemini 3.1 Flash Image Preview) at $3 per 1M tokens versus $12 per 1M for Nano Banana Pro (Gemini 3 Pro Image Preview).