The Complete Guide to Nano Banana Pro: 10 Tips for Professional Asset Production
By Guillaume Vernade, Gemini Developer Advocate, Google DeepMind
Published: November 29, 2025
Nano-Banana Pro is a significant leap forward from previous generation models, moving from “fun” image generation to “functional” professional asset production. It excels in text rendering, character consistency, visual synthesis, world knowledge (Search), and high-resolution (4K) output.
Following the developer guide on how to get started with AI Studio and the API, this guide covers the core capabilities and how to prompt them effectively.
🛑 Section 0: The Golden Rules of Prompting
Nano-Banana Pro is a “Thinking” model. It doesn’t just match keywords; it understands intent, physics, and composition. To get the best results, stop using “tag soups” (e.g., dog, park, 4k, realistic) and start acting like a Creative Director.
1. Edit, Don’t Re-roll
The model is exceptionally good at understanding conversational edits. If an image is 80% correct, do not generate a new one from scratch. Instead, simply ask for the specific change you need.
Example: “That’s great, but change the lighting to sunset and make the text neon blue.”
2. Use Natural Language & Full Sentences
Talk to the model as if you were briefing a human artist. Use proper grammar and descriptive adjectives.
❌ Bad: “Cool car, neon, city, night, 8k.”
✅ Good: “A cinematic wide shot of a futuristic sports car speeding through a rainy Tokyo street at night. The neon signs reflect off the wet pavement and the car’s metallic chassis.”
3. Be Specific and Descriptive
Vague prompts yield generic results. Define the subject, the setting, the lighting, and the mood.
- Subject: Instead of “a woman,” say “a sophisticated elderly woman wearing a vintage chanel-style suit.”
- Materiality: Describe textures. “Matte finish,” “brushed steel,” “soft velvet,” “crumpled paper.”
4. Provide Context (The “Why” or “For whom”)
Because the model “thinks,” giving it context helps it make logical artistic decisions.
Example: “Create an image of a sandwich for a Brazilian high-end gourmet cookbook.” (The model will infer professional plating, shallow depth of field, and perfect lighting).
1. Text Rendering, Infographics & Visual Synthesis
Nano-Banana Pro has SOTA capabilities for rendering legible, stylized text and synthesizing complex information into visual formats.
Best Practices:
- Compression: Ask the model to “compress” dense text or PDFs into visual aids.
- Style: Specify if you want a “polished editorial,” a “technical diagram,” or a “hand-drawn whiteboard” look.
- Quotes: Clearly specify the text you want in quotes.
Example Prompts:
Earnings Report Infographic (Data Ingestion):
[Input PDF of Google’s latest earnings report]
“Generate a clean, modern infographic summarizing the key financial highlights from this earnings report. Include charts for ‘Revenue Growth’ and ‘Net Income’, and highlight the CEO’s key quote in a stylized pull-quote box.”
Try it in AI Studio (Note: Requires uploading a PDF)
Retro Infographic:
“Make a retro, 1950s-style infographic about the history of the American diner. Include distinct sections for ‘The Food,’ ‘The Jukebox,’ and ‘The Decor.’ Ensure all text is legible and stylized to match the period.”
Technical Diagram:
“Create an orthographic blueprint that describes this building in plan, elevation, and section. Label the ‘North Elevation’ and ‘Main Entrance’ clearly in technical architectural font. Format 16:9.”
Whiteboard Summary (Educational):
“Summarize the concept of ‘Transformer Neural Network Architecture’ as a hand-drawn whiteboard diagram suitable for a university lecture. Use different colored markers for the Encoder and Decoder blocks, and include legible labels for ‘Self-Attention’ and ‘Feed Forward’.”
2. Character Consistency & Viral Thumbnails
Nano-Banana Pro supports up to 14 reference images (6 with high fidelity). This allows for “Identity Locking”—placing a specific person or character into new scenarios without facial distortion.
Best Practices:
- Identity Locking: Explicitly state: “Keep the person’s facial features exactly the same as Image 1.”
- Expression/Action: Describe the change in emotion or pose while maintaining the identity.
- Viral Composition: Combine subjects with bold graphics and text in a single pass.
Example Prompts:
The “Viral Thumbnail” (Identity + Text + Graphics):
“Design a viral video thumbnail using the person from Image 1.
Face Consistency: Keep the person’s facial features exactly the same as Image 1, but change their expression to look excited and surprised.
Action: Pose the person on the left side, pointing their finger towards the right side of the frame.
Subject: On the right side, place a high-quality image of a delicious avocado toast.
Graphics: Add a bold yellow arrow connecting the person’s finger to the toast.
Text: Overlay massive, pop-style text in the middle: ‘3分钟搞定!’ (Done in 3 mins!). Use a thick white outline and drop shadow.
Background: A blurred, bright kitchen background. High saturation and contrast.”
Try it in AI Studio (Note: Requires uploading a reference image)
The “Fluffy Friends” Scenario (Group Consistency):
[Input 3 images of different plush creatures]
“Create a funny 10-part story with these 3 fluffy friends going on a tropical vacation. The story is thrilling throughout with emotional highs and lows and ends in a happy moment.
Keep the attire and identity consistent for all 3 characters, but their expressions and angles should vary throughout all 10 images. Make sure to only have one of each character in each image.”
Try it in AI Studio (Note: Requires uploading reference images)
Brand Asset Generation:
(Content truncated in source; explore further in AI Studio for full examples.)
Upcoming Sections
This guide continues with:
- Grounding with Google Search
- Advanced Editing, Restoration & Colorization
- Dimensional Translation (2D ↔ 3D)
- High-Resolution & Textures
- Thinking & Reasoning
- One-Shot Storyboarding & Concept Art
- Structural Control & Layout Guidance
- What’s Next?
For the full guide, visit the original X post.