Available in Plykit
Nano Banana 2
gemini-3.1-flash-image
Google's stable model ID. Plykit currently routes its available standard option through the NB2.1 endpoint for Standard generation and editing.
Official model facts · Plykit availability
What is Nano Banana 2?
Nano Banana 2 is Google's name for Gemini 3.1 Flash Image. This guide separates Google's stable model IDs from Plykit's current production endpoints and shows which options are actually selectable here.
Quick conclusion
- • If you want fast, high-volume creation, start with Nano Banana 2.
- • If you need maximum realism for final hero assets, compare with Pro before deciding.
- • Nano Banana 2 Lite is official, but it is not available in Plykit.
Model status
Nano Banana 2, Lite, and Plykit support
A published Google model is not automatically a Plykit feature. The cards below show the official model identity and the separate product availability boundary.
Not available in Plykit
Nano Banana 2 Lite
gemini-3.1-flash-lite-image
Google documents 1K-only output and no Search grounding. Plykit does not expose, connect, or simulate this model.
Available in Plykit
Nano Banana Pro
gemini-3-pro-image
Plykit's current Pro option remains available for users comparing a quality-focused path with the standard Nano Banana 2 workflow.
Technical Background
Google introduced Nano Banana 2 as Gemini 3.1 Flash Image. Google's current documentation lists a stable model ID for that generation. Plykit Standard now uses gemini-nano-banana-2.1 for generation and editing; Pro remains separate.
Google stable model ID
gemini-3.1-flash-image
Plykit current endpoint
gemini-nano-banana-2.1
Plykit base cost
3 credits before generation
Plykit access
Core Capabilities
📐 Resolution: 512px to 4K
Google documents four output-size tiers for Gemini 3.1 Flash Image. Generation time varies by request, provider load, and the selected output size.
512px
Small output
Standard path
1K
Default size
Standard and Lite
2K
More detail
Standard path
4K
Largest size
Standard path
🌐 Web-Grounded Generation
Gemini 3.1 Flash Image can use Google Search grounding when the integration is enabled. Grounding can help with current information, but generated visual details still require review. Google documents no Search grounding for Nano Banana 2 Lite.
🖼️ 14 Reference Images
Plykit's current interface accepts up to 14 reference inputs. Google's official guidance separates up to 10 high-fidelity object references from up to 4 character references, so the composition of the reference set matters. Nano Banana 2 Lite is not optimized for multi-reference workflows.
👤 Character Consistency (Up to 4)
NB2 can maintain consistent character appearance across up to 4 characters in a single generation session. This is critical for e-commerce product models, brand mascots, comic/manga creation, and any workflow that requires recognizable faces across multiple outputs.
📏 14 Aspect Ratios
In addition to standard ratios, Gemini 3.1 Flash Image documents extended wide and tall formats for banners, stories, and panoramic compositions.
1:13:22:34:33:44:55:416:99:1621:94:1 ✦8:1 ✦1:4 ✦1:8 ✦
✦ Extended ratios documented for Gemini 3.1 Flash Image; support varies by model.
🎨 Generation Modes
Text to Image
Generate images from text descriptions. Supports all resolutions, aspect ratios, and web search.
Image Editing
Edit existing images with natural language instructions. Upload a photo and describe changes.
Multi-Image Blend
Combine up to 14 reference images to create composites, style transfers, and creative mashups.
Version Evolution
2025
Nano Banana (Original)
Earlier Gemini image generation and editing path.
Late 2025
Nano Banana Pro
Gemini 3 Pro Image path for quality-focused image workflows.
February 2026
Nano Banana 2 ← Current
Gemini 3.1 Flash Image with multiple output sizes, Search grounding support, and multi-reference guidance.
Documented by Google
Nano Banana 2 Lite ← Not in Plykit
Gemini 3.1 Flash Lite Image with 1K-only output and no Search grounding. Plykit does not currently offer it.
Nano Banana 2 vs Pro — At a Glance
| Nano Banana 2 | Nano Banana Pro | |
|---|---|---|
| Model | Gemini 3.1 Flash | Gemini 3 Pro |
| Positioning | Speed-focused | Quality-focused |
| Plykit base cost | 3 credits | 12 credits |
| 512px Mode | ✅ | — |
| Web Search | Supported | Supported |
| Reference inputs in Plykit | Up to 14 | Up to 14 |
Frequently Asked Questions
什么是 Nano Banana 2？▼
Nano Banana 2 是 Google 对 Gemini 3.1 Flash Image 图像生成与编辑模型的称呼。Google 列出的稳定 API 模型 ID 是“gemini-3.1-flash-image”。
Nano Banana 2 使用什么模型？▼
Nano Banana 2 原对应 Gemini 3.1 Flash Image。Plykit 标准版生成和编辑现使用 gemini-nano-banana-2.1；Pro 为独立模型。
Nano Banana 2 支持哪些分辨率？▼
Google 为 Gemini 3.1 Flash Image 记录了 512px、1K、2K 和 4K 输出尺寸。实际生成时间会随请求和服务商状态变化。
Nano Banana 2 可以使用多少张参考图？▼
Plykit 当前界面最多接受 14 个参考输入。Google 官方说明区分最多 10 个高保真物体参考和最多 4 个角色参考，因此具体组合很重要。
Nano Banana 2 支持网络搜索吗？▼
支持。Nano Banana 2 可在图像生成时通过 Google Search 获取实时网络信息；是否使用取决于所选配置和任务。
Nano Banana 2 适合哪些图像任务？▼
它支持文生图、编辑、多种输出尺寸、参考图和可选的 Google Search grounding。是否合适取决于具体任务，建议用相同提示词和输出要求比较当前可用的标准与 Pro 路径。
Nano Banana 2 支持哪些宽高比？▼
Nano Banana 2 支持标准、横向、纵向和扩展宽高比。不同模型的支持范围可能不同，生成前应检查所选输出配置。
Nano Banana 2 可以通过 API 使用吗？▼
Nano Banana 2 原对应 Gemini 3.1 Flash Image。Plykit 标准版生成和编辑现使用 gemini-nano-banana-2.1；Pro 为独立模型。
Nano Banana 2 与 Nano Banana Pro 有什么区别？▼
Plykit 将 Nano Banana 2 路径用于较快迭代，将 Pro 路径用于要求更高的输出。Plykit 当前显示的基础成本分别为 3 和 12 credits，Pro 的 4K 输出需要更多 credits。
Plykit 已支持 Nano Banana 2 Lite 吗？▼
尚未支持。Google 将 Nano Banana 2 Lite 的模型 ID 记录为“gemini-3.1-flash-lite-image”，但 Plykit 当前不能选择，也没有连接该模型。Google 记录 Lite 仅输出 1K 且不支持 Search grounding。
Learn More
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⚖️NB2 vs Pro — Full Comparison
Speed, quality, cost, and feature-by-feature breakdown.
🆚How does Nano Banana 2 compare to Midjourney?
Head-to-head comparison of speed, quality, and value.
🔄Nano Banana 2 vs DALL-E
See how NB2 stacks up against OpenAI's image model.
Popular Templates
Try these popular use cases powered by Google's Nano Banana 2
Use the Nano Banana 2 option available in Plykit
Open the current generator, review the credit cost, and choose a supported resolution before submitting.
Open the current generator →Nano Banana 2 Lite is not available in Plykit.
Nano Banana and Nano Banana 2 are trademarks of Google LLC. Plykit is an independent platform; this page provides editorial review and comparison content under nominative fair use.