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gemini-3.1-flash-image is the general-purpose default for new Nano Banana integrations on YingTu. It keeps Flash-class efficiency while adding higher resolution choices that the Lite and original models do not provide here. Google positions Nano Banana 2 for mainstream high-quality generation and conversational editing, with improved consistency, aspect-ratio adherence, and international text rendering. Review the current upstream model page.

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What YingTu verified

The synchronous 2K request produced a 2048 × 2048 JPEG. A 1K asynchronous task completed with a 1024 × 1024 JPEG, and inline editing preserved the source subject while changing its background. All responses used the expected Gemini native candidates structure.

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Compare with Nano Banana Pro

The timings used different resolutions and are not a speed benchmark. Start with Flash for a new general-purpose integration; move a representative sample to Pro when complex layouts, text-heavy graphics, or premium mockups justify the higher price.

Configure Flash

Choose 1K, 2K, or 4K in the correct nested field.

Compare all models

See the full family decision guide.