Nano Banana 2 (Gemini 3.1 Flash Image Preview)
Fast and lightVisionGoogle · Released February 2026
Gemini 3.1 Flash Image Preview, a.k.a. "Nano Banana 2," is Google’s latest state of the art image generation and editing model, delivering Pro-level visual quality at Flash speed. It combines...
It is part of Google's Gemini and Gemma catalog: Pro tiers lead on capability, Flash tiers on speed and price, and Gemma models are open weight.
Facts and pricing
- Provider
- Context window
- 131K tokens
- Input price
- 5.5 credits / 1M tokens ($0.50 raw)
- Output price
- 33.0 credits / 1M tokens ($3.00 raw)
- Vision (image input)
- Yes
- Tool calling
- No
- Extended reasoning
- No
Credits are what Zeplik bills: 1 credit = $0.10, computed from the raw provider rate with a 1.10x margin. Raw prices shown per 1M tokens.
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What Nano Banana 2 (Gemini 3.1 Flash Image Preview) is best for
- High-volume everyday tasks where speed and cost matter: summaries, drafts, quick questions
- Working with images: screenshots, charts, photos and scanned documents alongside text
Example prompts
Prompts that suit a fast and light model like Nano Banana 2 (Gemini 3.1 Flash Image Preview):
- Summarize this article in five bullet points
- Rewrite this email to be shorter and friendlier
- Give me ten name ideas for a hiking newsletter
- Translate this paragraph to Spanish and keep the tone
Google family
| Model | Context | Input cr/M | Output cr/M | Released |
|---|---|---|---|---|
| Nano Banana 2 Lite (Gemini 3.1 Flash Lite Image) | 66K | 2.8 | 16.5 | June 2026 |
| Nano Banana 2 (Gemini 3.1 Flash Image) | 131K | 5.5 | 33.0 | June 2026 |
| Nano Banana Pro (Gemini 3 Pro Image) | 66K | 22.0 | 132 | June 2026 |
| Gemini 3.5 Flash | 1.0M | 16.5 | 99.0 | May 2026 |
| Gemini 3.1 Flash Lite | 1.0M | 2.8 | 16.5 | May 2026 |
| Gemma 4 26B A4B (free) | 262K | 0 | 0 | April 2026 |
| Gemma 4 26B A4B | 262K | 0.66 | 3.6 | April 2026 |
| Gemma 4 31B (free) | 262K | 0 | 0 | April 2026 |
| Gemma 4 31B | 262K | 1.3 | 3.8 | April 2026 |
| Lyria 3 Pro Preview | 1.0M | 0 | 0 | March 2026 |
Frequently asked questions
- What is Nano Banana 2 (Gemini 3.1 Flash Image Preview)?
- Nano Banana 2 (Gemini 3.1 Flash Image Preview) is an AI model by Google. Gemini 3.1 Flash Image Preview, a.k.a. "Nano Banana 2," is Google’s latest state of the art image generation and editing model, delivering Pro-level visual quality at Flash speed. It combines...
- How much does Nano Banana 2 (Gemini 3.1 Flash Image Preview) cost on Zeplik?
- Input tokens cost 5.5 credits per million and output tokens 33.0 credits per million (1 credit = $0.10; the raw provider rates are $0.50 and $3.00 per million). New accounts start with free credits.
- How long can a conversation with Nano Banana 2 (Gemini 3.1 Flash Image Preview) be?
- Nano Banana 2 (Gemini 3.1 Flash Image Preview) has a 131K-token context window (131,072 tokens), which covers the conversation plus any documents you attach.
- Does Nano Banana 2 (Gemini 3.1 Flash Image Preview) support images and tools?
- Nano Banana 2 (Gemini 3.1 Flash Image Preview) accepts image input and does not support tool calling.
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