Google: gemini-3.1-flash-image-preview
gemini-3.1-flash-image-preview
131.1K context32.8K outVisionCacheStructuredWeb searchSystem msg
Released Feb 26, 2026Knowledge cutoff 2024Updated Feb 26, 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 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
Mode image_generationTokenizer Gemini
Pricing
Price per request
$0.12/ image$0.1520% off
Context window 131.1K tokensCompatible endpoints geminiVendor Google
Performance
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Usage & Ranking
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Supported parameters
All providers = every upstream serving this model supports it. Some providers = depends on which upstream handles the request. Default = the value sent when you leave the parameter unset.
| Parameter | Providers | Default |
|---|---|---|
| frequency_penalty | Some providers | Not sent by default |
| include_reasoning | All providers | - |
| max_tokens | All providers | - |
| presence_penalty | Some providers | Not sent by default |
| reasoning | All providers | - |
| repetition_penalty | Some providers | Not sent by default |
| response_format | All providers | - |
| seed | All providers | - |
| structured_outputs | Some providers | - |
| temperature | All providers | Not sent by default |
| top_k | Some providers | Not sent by default |
| top_p | All providers | Not sent by default |