Google: Nano Banana 2 (Gemini 3.1 Flash Image Preview)
The Google Nano Banana 2 (Gemini 3.1 Flash Image Preview) is designed to handle both image and text inputs within a context length of 65,536 tokens, making it versatile for tasks that require processing multiple types of data simultaneously. This model supports reasoning, enabling more sophisticated analyses compared to simpler models; however, it does not offer structured output or integrated tools. For those seeking a model with robust capabilities in handling both text and image inputs at an accessible price point, the Nano Banana 2 might be worth considering. Despite its reasonable input cost of $0.5 per thousand tokens, the high output cost of $3.0 per thousand tokens makes it less suitable for large-scale projects or scenarios requiring extensive processing. Given that no independent benchmark coverage is available yet, users should carefully evaluate their specific needs before committing to this model.
- Model ID
- google/gemini-3.1-flash-image-preview
- Vendor
- Released
- February 2026
- Tokenizer
- Gemini
- Input Modalities
- image, text
- Output Modalities
- image, text
- Max Output
- 58,982 tokens
- Tool Calling
- not supported
- Structured Output
- ✓ supported
- Reasoning Mode
- ✓ supported
- Vision
- ✓ accepts images
- Audio
- no
- Moderated
- no
What it costs in practice
Computed from the current $0.50/M input and $3.00/M output rates. Run your own numbers →
| Job | Tokens | Cost |
|---|---|---|
| Summarize a 50-page report | 30k in / 1.5k out | $0.02 |
| Classify 1,000 customer emails | 500k in / 50k out | $0.40 |
| A month of a busy support chatbot | 5M in / 2M out | $8.50 |
Price & spec history
Tracked daily by PicksByModel since 2026-07-17.
| Date | Input /M | Output /M | Context |
|---|---|---|---|
| 2026-07-27 | $0.50 | $3.00 | 65,536 |
| 2026-07-17 | $0.50 | $3.00 | 131,072 |
Category rankings
Where Google: Nano Banana 2 (Gemini 3.1 Flash Image Preview) places across the 1 category it ranks in. How we rank →
| # | Category | Score |
|---|---|---|
| #7 | Image GenerationVision · of 9 ranked | 91 |
Similar models
Google: Nano Banana 2 Lite (Gemini 3.1 Flash Lite Image)
Google: Gemma 3 4B
Google: Nano Banana Pro (Gemini 3 Pro Image Preview)
Google: Nano Banana 2 (Gemini 3.1 Flash Image)
Google: Nano Banana (Gemini 2.5 Flash Image)
Google: Lyria 3 Pro Preview
Quick answers
- How much does Google: Nano Banana 2 (Gemini 3.1 Flash Image Preview) cost?
- $0.50 per million input tokens and $3.00 per million output tokens.
- What is Google: Nano Banana 2 (Gemini 3.1 Flash Image Preview)'s context window?
- 65,536 tokens, roughly 98 pages of text in a single request.
- Does Google: Nano Banana 2 (Gemini 3.1 Flash Image Preview) support tool calling?
- It supports structured output, a reasoning mode.
- Can Google: Nano Banana 2 (Gemini 3.1 Flash Image Preview) process images?
- Yes, it accepts image input.