Google: Nano Banana Pro (Gemini 3 Pro Image)✓ Catalog verified
Nano Banana Pro is Google’s most advanced image-generation and editing model, built on Gemini 3 Pro. It extends the original Nano Banana with significantly improved multimodal reasoning, real-world grounding, and...
Overview
Nano Banana Pro is Google’s most advanced image-generation and editing model, built on Gemini 3 Pro. It extends the original Nano Banana with significantly improved multimodal reasoning, real-world grounding, and...
Access: available through the official Google API. Context window: 131K.
Specifications
| API identifier | google/gemini-3-pro-image |
| Provider | |
| Model type | Multimodal LLM |
| Context window | 131K catalog |
| Input modalities | image · text |
| Output modalities | image · text |
| Released | Jun 18, 2026 |
| Tokenizer | Gemini |
| Moderated | No |
| Architecture modality | text+image->text+image |
Pricing
Live pricing components for google/gemini-3-pro-image as published in the catalog.
| Pricing component | Raw unit price | Normalized | Unit |
|---|---|---|---|
| Prompt tokens | $0.000002 | $2.00 / 1M | Per input token |
| Completion tokens | $0.000012 | $12.00 / 1M | Per output token |
| Request fee | N/A | N/A | Per request |
| Image fee | $0.000002 | $0.000002 | Per image unit |
| Web search fee | $0.014 | $0.014000 | Per search request |
Cost calculator
Estimate monthly spend from your own token volumes.
Estimated Total Cost
$3.4Calculated from current list pricing in the ModelsAtlas catalog.Capabilities
| Capability | Status | What it means |
|---|---|---|
| Visual Understanding | ✓ Supported | Image and document analysis support |
| Audio Processing | Not advertised | Speech and voice aligned flows |
| Tool Calling | ✓ Supported | Supports tools / function calling |
| Self-Hosting | Not advertised | Deploy outside managed APIs |
Capability signals
Directional signals derived from model metadata and capability tags — not official benchmark submissions.
Quick start
Call Google: Nano Banana Pro (Gemini 3 Pro Image) through an OpenAI-compatible client.
from openai import OpenAI
client = OpenAI(
base_url="https://openrouter.ai/api/v1",
api_key="YOUR_API_KEY"
)
response = client.chat.completions.create(
model="google/gemini-3-pro-image",
messages=[{"role": "user", "content": "Explain quantum physics."}]
)
print(response.choices[0].message.content)Alternatives
Closest models by context window from a different provider.
| Model | Provider | Context | Input /1M | Actions |
|---|---|---|---|---|
| AionLabs: Aion-1.0 | Aion Labs | 131K | $4.00 | View → |
| AionLabs: Aion-1.0-Mini | Aion Labs | 131K | $0.70 | View → |
Sources & attribution
Pricing and metadata are maintained in the ModelsAtlas catalog.
Frequently asked questions
How much does Google: Nano Banana Pro (Gemini 3 Pro Image) cost?
$2.00 per 1M input tokens and $12.00 per 1M output tokens on the official Google API.
What is the context window of Google: Nano Banana Pro (Gemini 3 Pro Image)?
Google: Nano Banana Pro (Gemini 3 Pro Image) supports up to 131K tokens of context.
Does Google: Nano Banana Pro (Gemini 3 Pro Image) support tool / function calling?
Yes, Google: Nano Banana Pro (Gemini 3 Pro Image) supports tool / function calling — you can register tools and the model will emit structured tool calls.
How do I access Google: Nano Banana Pro (Gemini 3 Pro Image)?
Use the official Google API with the model id `google/gemini-3-pro-image`. See the Quick start section above for code examples.