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Captions Mirage prompt guide illustration for writing effective actor and background descriptions
Captions uses a single, unified prompt to generate both your actor and background. Write your prompt as a complete scene description that naturally flows from describing the person to their environment.

Writing Effective Prompts

Create comprehensive scene descriptions by combining these key elements into one cohesive prompt:

Actor Elements

Include these details about your actor in a natural, flowing description:

Expression & Movement

Add life to your actor with these behavioral details:

Environment & Technical Details

Complete your scene with setting and camera specifications:

Best Practices

Write complete, flowing descriptions: Combine all elements into a single, natural paragraph. For example:β€œA professional Black woman in her early 30s with natural curly hair, wearing a crisp white shirt and navy blazer, sitting confidently at a modern glass desk in a bright corporate office. She’s looking directly at the camera with a warm, engaging smile while gesturing naturally as she speaks. Behind her, floor-to-ceiling windows reveal a city skyline. The shot is framed as a medium close-up with soft, natural lighting and a slightly blurred background.”
Important considerations for best results:
  • Voice-visual matching: Ensure your actor’s appearance matches the voice you’re using (e.g., female voice = female-presenting actor)
  • Audio-environment consistency: Match audio quality with the environment (clean audio for indoor settings, appropriate ambience for outdoor scenes)
  • Keep it realistic: Avoid overly complex or unrealistic combinations that don’t exist in real life
  • Be specific but concise: Provide enough detail for clarity without overcomplicating
  • Check your spelling: Typos can affect generation quality

Example Prompts

Pro Tips for Better Results

1

Start with the actor

Begin your prompt by describing the person - their appearance, clothing, and position
2

Add behavior and expression

Describe how they’re interacting with the camera and their emotional state
3

Set the scene

Naturally transition to describing the environment and setting
4

Specify technical details

End with camera framing, lighting, and any atmospheric details
Remember: Captions processes your entire prompt as one unified instruction. The more naturally your description flows, the better your results will be. Think of it as describing a scene to someone who will recreate it exactly as you envision.
Last modified on July 29, 2026