Nano Banana 2 / Pro

Nano Banana 2

Google’s Nano Banana 2 is the second-generation Gemini image generation model, designed to deliver more realistic visuals, stronger text rendering, and improved editing control compared to its predecessor, positioning it as a more production-ready creative engine inside Google’s AI ecosystem.

Pros:

  • Improved photorealism and detail consistency over the previous generation

  • Better in-image text rendering and layout handling

  • Tighter integration with Gemini workflows for conversational image creation and editing

  • More reliable multi-object and complex scene generation

Cons:

  • Still dependent on prompt quality for best results

  • Competes in a crowded high-end image model market

  • Advanced creative controls may require experimentation to master

Nano Banana 2: Command & Parameter Cheat Sheet

Version: 2.0 (Feb 2026)

Scope: Gemini App, AI Studio, and Pro API

1. Core Reference Triggers (@ Commands)

Command

Function

Syntax Example

@search

Triggers live Google Search Grounding for factual accuracy.

"Generate a schematic of @search[2026 Tesla Model S Interior]"

@acoustic

Generates synchronized material-specific audio physics.

"A ceramic bowl falling on wood floor @acoustic[shatter]"

@identity

Locks character consistency across multiple generations.

"Generate @identity[Character_1] in a futuristic Irvine library"

@translate

Native in-image text translation and localization.

"Update label text to @translate[Japanese]"

@fusion

Blends up to 14 reference images into a single lighting rig.

"Fuse @ref[1-8] with volumetric lighting @fusion[HDR]"

2. Advanced Thinking Parameters (Pro API)

These parameters allow you to control the "Reasoning vs. Speed" balance of the Gemini 3.1 architecture.

  • --thinking_level [minimal|dynamic|high]

    • minimal: For rapid ideation (1s). Best for social media posts.

    • dynamic: Default mode. Automatically balances logic and speed.

    • high: For complex infographics, architectural renders, and fine text.

  • --physics_engine [enabled|disabled]

    • Set to enabled to ensure shadows, reflections, and light fall-off respect real-world optical laws.

  • --upscale [2k|4k|8k]

    • Directly outputs or upscales the generation to high-fidelity production resolutions.

3. Aspect Ratio Presets

Nano Banana 2 supports extreme aspect ratios for specialized marketing formats.

  • --ar 8:1 / 1:8 (Ultra-wide Panoramas / Mobile Scroller Ads)

  • --ar 4:1 / 1:4 (Website Banners / Story Posters)

  • --ar 2.39:1 (Cinematic Anamorphic)

4. Best Practices for "Identity Lock"

To maintain 100% character consistency in a storyboard (Irvine Filmmaker Workflow):

  1. Step 1: Generate your "Hero Shot" and save the Character ID.

  2. Step 2: Use @identity[ID_Code] in all subsequent prompts.

  3. Step 3: Use --thinking_level high to ensure facial micro-details (skin texture, freckles) do not drift during transitions.

Awesome Nano Banana Pro Prompts

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