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Rikka includes a dedicated image generation workspace that lets you turn text prompts into images — or supply a reference image and ask the model to edit it. Generated images are stored in an in-app gallery and can be saved to your device’s photo library at any time.
Image generation requires a provider that supports image synthesis. Supported options include DALL-E 3 (OpenAI), Imagen 3 (Google), and any other provider you have configured in Rikka that exposes an image generation model. Make sure you have added and authenticated at least one such provider in Settings → Providers before continuing.

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Selecting an Image Generation Model

Before you generate your first image, tell Rikka which model to use.
1

Open Model Settings

Go to Settings → Models and look for the Image Generation Model selector.
2

Pick a model

The selector lists every image-capable model across all your configured providers. Choose the one you want — for example, dall-e-3 from your OpenAI provider, or imagen-3.0-generate-002 from Google.
3

Save

Your choice is saved automatically. You can also change the model directly from the image generation screen at any time using the model selector in the input bar.

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Opening the Image Generation Screen

Tap the Image Generation entry in the app drawer (the grid icon on the home screen) to open the dedicated workspace. The screen has two tabs at the bottom:

Generate

Write a prompt, adjust settings, and create new images. Your most recently generated images appear at the top of this tab.

Gallery

Browse every image you have generated across all sessions, with the prompt and model name displayed on each card.

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Generating an Image from a Text Prompt

1

Write your prompt

Type a descriptive text prompt in the input field at the bottom of the Generate tab. The more detail you include — subject, style, lighting, composition — the more closely the output matches your vision.
2

Adjust generation settings (optional)

Tap the settings (wrench) icon to open the settings sheet. You can configure:
  • Model — switch to a different image model without leaving the screen.
  • Number of images — generate between 1 and 4 images in a single request.
  • Aspect ratio — choose Square, Landscape, or Portrait.
3

Tap the send button

Tap the circular arrow button. Rikka sends your prompt to the selected model and shows a loading indicator while it waits for the result.
4

Review the output

Generated images appear above the input bar. Tap any image to open a full-screen preview.
Start a New Session (the + icon in the top-right corner) to clear the current prompt and generated images and begin fresh. Each session keeps its own context separate from the gallery history.

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Editing an Existing Image

Some models — such as dall-e-2 and certain Imagen variants — support image editing, where you provide a reference image and a prompt describing the changes you want.
1

Add a reference image

Tap the image add (+) icon in the input bar to pick one or more images from your device’s photo library. Thumbnails appear above the text field; tap the × on any thumbnail to remove it.
2

Describe the edit

Write a prompt explaining what changes to apply, for example: “Change the background to a sunset over the ocean”.
3

Tap the send button

Rikka calls the provider’s image-edit endpoint instead of the standard generation endpoint when reference images are present.
Not all image models support editing. If your selected model only supports generation, Rikka will return an error when you try to submit with reference images attached. Switch to a model that supports editing (check your provider’s documentation) or remove the reference images to do a standard generation instead.
Every image you generate is automatically saved to Rikka’s in-app gallery. Open the Gallery tab to browse your history. Each gallery card shows:
  • A thumbnail of the image
  • The model used
  • A truncated version of the prompt
From the card’s action row you can:
ActionEffect
Copy (clipboard icon)Copies the full prompt text to your clipboard so you can reuse or refine it.
Save (floppy disk icon)Saves the image to your device’s photo library / media store.
Delete (trash icon)Removes the image from the gallery and deletes the file from internal storage.
Tap a thumbnail to open a full-screen preview with pinch-to-zoom support.
Images are stored in Rikka’s private internal storage until you explicitly tap Save to export them to your device’s media library. Uninstalling Rikka will permanently delete any images you have not saved externally.

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Tips for Better Results

  • Be specific about the subject: “a red fox sitting in a snowy forest at dusk” beats “a fox”.
  • Name an art style or medium: “oil painting”, “photorealistic”, “watercolour sketch”.
  • Describe the mood or atmosphere: “dramatic lighting”, “soft pastel tones”, “cinematic composition”.
  • If the model supports negative prompts, use the settings sheet to exclude unwanted elements.
  • Square — social media posts, avatars, product shots.
  • Landscape (16:9) — desktop wallpapers, scene illustrations, banners.
  • Portrait (9:16) — mobile wallpapers, posters, character art.
Image generation APIs typically charge per image generated. Keep the Number of images setting at 1 while iterating on your prompt, and increase it only once you are happy with the style and composition.