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Google: Nano Banana 2 (Gemini 3.1 Flash Image Preview)
Server-rendered model summary page for indexing/share previews. Use the interactive explorer for full filtering and comparison.
Match confidence: UnmatchedSource type: openrouter_only
Context window
65.5K
Arena overall rank
—
Input price
$0.000 / 1M
Output price
$0.000 / 1M
Identifiers & provenance
- Primary ID
- google/gemini-3.1-flash-image-preview
- OpenRouter ID
- google/gemini-3.1-flash-image-preview
- Canonical slug
- google/gemini-3.1-flash-image-preview-20260226
Source semantics
- Arena rank is a human-preference leaderboard signal, not a universal truth metric.
- OpenRouter usage/popularity reflects adoption/traffic, not benchmark quality.
- Pricing fields may differ by provider and can include extra modes beyond prompt/completion.
Read more on Methodology & data sources.
Description
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 advanced contextual understanding with fast, cost-efficient inference, making complex image generation and iterative edits significantly more accessible. Aspect ratios can be controlled with the [image_config API Parameter](https://openrouter.ai/docs/features/multimodal/image-generation#image-aspect-ratio-configuration)
Raw fields snapshot
{
"id": "google/gemini-3.1-flash-image-preview",
"name": "Google: Nano Banana 2 (Gemini 3.1 Flash Image Preview)",
"description": "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 advanced contextual understanding with fast, cost-efficient inference, making complex image generation and iterative edits significantly more accessible. Aspect ratios can be controlled with the [image_config API Parameter](https://openrouter.ai/docs/features/multimodal/image-generation#image-aspect-ratio-configuration)",
"created": 1772119558,
"canonical_slug": "google/gemini-3.1-flash-image-preview-20260226",
"hugging_face_id": "",
"source_type": "openrouter_only",
"context_length": 65536,
"max_completion_tokens": 65536,
"is_moderated": false,
"architecture": {
"modality": "text+image->text+image",
"input_modalities": [
"image",
"text"
],
"output_modalities": [
"image",
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],
"tokenizer": "Gemini",
"instruct_type": null
},
"input_modalities": [
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],
"output_modalities": [
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],
"modality": "text+image->text+image",
"tokenizer": "Gemini",
"instruct_type": null,
"supported_parameters": [
"include_reasoning",
"max_tokens",
"reasoning",
"response_format",
"seed",
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"structured_outputs",
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],
"default_parameters": {
"temperature": null,
"top_p": null,
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},
"per_request_limits": null,
"top_provider": {
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"pricing": {
"prompt": "0.00000025",
"completion": "0.0000015"
},
"PPM": {
"prompt": 0.25,
"completion": 1.5
},
"openrouter_raw": {
"id": "google/gemini-3.1-flash-image-preview",
"canonical_slug": "google/gemini-3.1-flash-image-preview-20260226",
"hugging_face_id": "",
"name": "Google: Nano Banana 2 (Gemini 3.1 Flash Image Preview)",
"created": 1772119558,
"description": "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 advanced contextual understanding with fast, cost-efficient inference, making complex image generation and iterative edits significantly more accessible. Aspect ratios can be controlled with the [image_config API Parameter](https://openrouter.ai/docs/features/multimodal/image-generation#image-aspect-ratio-configuration)",
"context_length": 65536,
"architecture": {
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"image",
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},
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"top_provider": {
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},
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"supported_parameters": [
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],
"default_parameters": {
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},
"expiration_date": null
}
}