gemini-3-pro-image-preview by openrouter - AI Model Details, Pricing, and Performance Metrics

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gemini-3-pro-image-preview
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gemini-3-pro-image-preview

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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 high-fidelity visual synthesis. The model generates context-rich graphics, from infographics and diagrams to cinematic composites, and can incorporate real-time information via Search grounding. It offers industry-leading text rendering in images (including long passages and multilingual layouts), consistent multi-image blending, and accurate identity preservation across up to five subjects. Nano Banana Pro adds fine-grained creative controls such as localized edits, lighting and focus adjustments, camera transformations, and support for 2K/4K outputs and flexible aspect ratios. It is designed for professional-grade design, product visualization, storyboarding, and complex multi-element compositions while remaining efficient for general image creation workflows.

Released
Nov 18, 2025
Knowledge
Jan 31, 2025
License
Proprietary
Context
65536
Input
$2 / 1M tokens
Output
$12 / 1M tokens
Capabilities: reasoning
Accepts: text, image
Returns: text

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Benchmark Tests

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HLE
37.2
General Knowledge
GPQA
91.3
STEM (Physics, Chemistry, Biology)
SciCode
56.1
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MMLU-Pro
89.8
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LiveCodeBench
91.7
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AA Math Index
95.7
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AA Coding Index
46.5
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AAII
48.4
General

Code Examples

Integration samples and API usage