GPT Image 1.5 prompt reference

Write down the subject, the change and the details to preserve. These examples offer starting points for image instructions.

This is a prompt reference page. Banana Nano’s available models and credit costs are listed in the editor and on the pricing page.

Give each reference a clear role
Examples of visual directions; your result depends on the image, model and instruction.

Give each reference a clear role

Use the first image for the subject and the second for the environment. Ask for matching size, perspective and contact shadows so the two references form one coherent scene.

Prompt Best Practices

1. Structured Prompting

Organize by: Background/Scene → Subject → Key Details → Constraints.

"Wide shot of a cyberpunk street (BG), a robot vendor (Subject)..."

2. Precise Editing

Explicitly state what to keep. Use "Change only..."

"Change the shirt to red, keep facial identity, lighting..."

3. Text Handling

Quote text and specify font/color.

"A neon sign saying 'OPEN LATE', bold serif font, cyan color."

4. Quality Trade-off

Choose quality parameters based on needs.

"quality='high' (Details)" vs "quality='low' (Speed)"

Review the result before using it

Compare important details with your original: faces, lettering, logos, object proportions and shadows. An instruction is a request to the model, not a guarantee that each detail will remain identical.