Google: Nano Banana (Gemini 2.5 Flash Image)✓ Catalog verified
Gemini 2.5 Flash Image, a.k.a. "Nano Banana," is now generally available. It is a state of the art image generation model with contextual understanding. It is capable of image generation, edits, and multi-turn conversations. Aspect ratios can be controlled with the image_config API Parameter
Overview
Gemini 2.5 Flash Image, a.k.a. "Nano Banana," is now generally available. It is a state of the art image generation model with contextual understanding. It is capable of image generation, edits, and multi-turn conversations. Aspect ratios can be controlled with the image_config API Parameter
Access: available through the official Google API. Context window: 33K.
Specifications
| API identifier | google/gemini-2.5-flash-image |
| Provider | |
| Model type | Multimodal LLM |
| Context window | 33K catalog |
| Input modalities | image · text |
| Output modalities | image · text |
| Released | Oct 7, 2025 |
| Tokenizer | Gemini |
| Moderated | No |
| Architecture modality | text+image->text+image |
API defaults
{
"top_p": null,
"temperature": null,
"frequency_penalty": null
}Pricing
Live pricing components for google/gemini-2.5-flash-image as published in the catalog.
| Pricing component | Raw unit price | Normalized | Unit |
|---|---|---|---|
| Prompt tokens | $3e-7 | $0.30 / 1M | Per input token |
| Completion tokens | $0.0000025 | $2.50 / 1M | Per output token |
| Request fee | N/A | N/A | Per request |
| Image fee | $3e-7 | $0.000000 | Per image unit |
| Web search fee | N/A | N/A | Per search request |
Cost calculator
Estimate monthly spend from your own token volumes.
Estimated Total Cost
$0.65Calculated 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 | Not advertised | 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 (Gemini 2.5 Flash 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-2.5-flash-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-RP 1.0 (8B) | Aion Labs | 33K | $0.80 | View → |
| Arcee AI: Coder Large | Arcee Ai | 33K | $0.50 | View → |
Sources & attribution
Pricing and metadata are maintained in the ModelsAtlas catalog.
Frequently asked questions
How much does Google: Nano Banana (Gemini 2.5 Flash Image) cost?
$0.30 per 1M input tokens and $2.50 per 1M output tokens on the official Google API.
What is the context window of Google: Nano Banana (Gemini 2.5 Flash Image)?
Google: Nano Banana (Gemini 2.5 Flash Image) supports up to 33K tokens of context.
Does Google: Nano Banana (Gemini 2.5 Flash Image) support tool / function calling?
Google: Nano Banana (Gemini 2.5 Flash Image) does not advertise first-class tool/function calling. Check vendor docs for the latest capabilities.
How do I access Google: Nano Banana (Gemini 2.5 Flash Image)?
Use the official Google API with the model id `google/gemini-2.5-flash-image`. See the Quick start section above for code examples.