Google Nano Banana 2.1 Text to Image generates images from text prompts with output resolutions up to 4K, 14 aspect ratios including extreme 8:1/1:8, configurable thinking levels (minimal/medium/high), optional web search grounding, and system prompts for style control. Supports 1 to 4 images per request and JPEG/PNG/WebP output. Billed by tokens with no flat per-image fees.
Third-party
Official
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