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Google Nano Banana 2 Fast

google/nano-banana-2/text-to-image-fast

Google Nano Banana 2 Fast (Gemini 3.1 Flash Image) is the cheapest Nano Banana 2 option, starting at just $0.045 per image. Delivers fast text-to-image generation with 2K default output and 4K support. Ready-to-use REST inference API, best performance, no coldstarts, affordable pricing.

Input
If enabled, the model will use web search to enhance the generation with real-time information.
If set to true, the function will wait for the result to be generated and uploaded before returning the response. It allows you to get the result directly in the response. This property is only available through the API.
If enabled, the output will be encoded into a BASE64 string instead of a URL. This property is only available through the API.

Idle

an epic sci-fi movie poster, a lone astronaut standing on a vast desert planet, a gigantic ringed planet rising in the sky, dramatic sunset lighting, blowing sand, cinematic composition, IMAX scale, photorealistic, space for title at the top, film poster design, ultra detailed

Your request will cost $0.045 per run.

For $1 you can run this model approximately 22 times.

One more thing:

ExamplesView all

an epic sci-fi movie poster, a lone astronaut standing on a vast desert planet, a gigantic ringed planet rising in the sky, dramatic sunset lighting, blowing sand, cinematic composition, IMAX scale, photorealistic, space for title at the top, film poster design, ultra detailed
"resolution": "8K ultra high definition", "style": "hyper - realistic food illustration with editorial infographic overlays", "lighting": "soft directional key light, subtle rimlight' "scene_description": "A vertical stack of cake slices floating above a plate against soft pink gradient background", "motion_elements": ["floating fruits", "floating macarons", "crumbs suspended in air"], "text_design": { "ingredient_name_color": "metallic gold", "indicator_lines": "long, thin, smooth golden lines with rounded corners"
a man standing in the middle of a busy city street while everything around him is frozen in time, suspended rain drops and floating papers, dramatic cinematic lighting, epic composition, hyper realistic, movie still, 8k
a quiet train platform at sunset, golden sunlight streaming through the station roof, a traveler holding a suitcase waiting alone, cinematic composition, film still, warm color grading, 35mm lens

README

Google Nano Banana 2 Text-to-Image Fast

Nano Banana 2 Text-to-Image Fast (Gemini 3.1 Flash Image) is the cheapest Nano Banana 2 option, starting at just $0.045 per image. It delivers faster generation times while maintaining high visual quality, with 2K resolution by default.

Why Choose This?

  • Lowest cost Nano Banana 2 The cheapest Nano Banana 2 option at just $0.045 per image.

  • Speed-optimized Faster generation times compared to the standard variant.

  • High-resolution default 2K output by default with 4K available for maximum detail.

  • Flexible aspect ratios Multiple options including 1:1, 3:2, 2:3, 3:4, 4:3, 4:5, 5:4, 9:16, 16:9, 21:9, 1:4, 4:1, 1:8, and 8:1.

  • Cinematic quality Excels at photorealistic scenes with atmospheric lighting and anamorphic lens effects.

  • Prompt Enhancer Built-in tool to automatically improve your descriptions.

  • Format choice Export in PNG or JPEG format.

Parameters

ParameterRequiredDescription
promptYesText description of the desired image
aspect_ratioNoAspect ratio: 1:1, 3:2, 2:3, 3:4, 4:3, 4:5, 5:4, 9:16, 16:9, 21:9, 1:4, 4:1, 1:8, 8:1
resolutionNoOutput resolution: 2k (default), 4k
enable_web_searchNoEnable web search to enhance generation with real-time info (default: false)
output_formatNoOutput format: png (default), jpeg

How to Use

  1. Write your prompt — describe the image in detail, including style, lighting, and composition.
  2. Choose aspect ratio (optional) — select a preset or leave empty for default.
  3. Select resolution — choose 2K (default) or 4K based on your needs.
  4. Choose output format — PNG for transparency support, JPEG for smaller file size.
  5. Use Prompt Enhancer (optional) — click to automatically refine your description.
  6. Run — submit and download your generated image.

Pricing

ResolutionCost
2k$0.045
4k$0.05
Web search+$0.014

Best Use Cases

  • Cinematic Imagery — Generate atmospheric scenes with anamorphic lens effects and film-like quality.
  • Character Portraits — Create detailed character illustrations with specific attributes.
  • Social Media Content — Produce eye-catching visuals for various platforms with flexible aspect ratios.
  • Marketing & Ads — Generate professional images for campaigns and promotions.
  • Concept Art — Visualize creative ideas with photorealistic rendering.

Pro Tips

  • Use cinematic language like "anamorphic lens look," "neon signs reflected in puddles," or "rainy Tokyo street at night" for atmospheric results.
  • Be specific about character attributes (hair color, clothing, accessories) for consistent results.
  • Match aspect ratio to your target platform: 9:16 for Stories/Reels, 16:9 for banners, 1:1 for feeds.
  • Try the Prompt Enhancer to automatically improve your descriptions.

Notes

  • Prompt is the only required field.
  • If aspect_ratio is not selected, the model uses a default ratio.
  • Ensure your prompts comply with Google's Safety Guidelines.

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