Generate a reusable character from a single reference image and a text description. Optionally attach a voice profile created with Gemini Omni Audio to give the character a consistent voice in future video generations.
About this model
Turn a single reference photo and a text description into a reusable character — complete with a unique ID and a generated character image. Optionally attach a voice profile to give the character a consistent voice across future video generations.
Cost analysis
| Provider | Cost | Notes |
|---|---|---|
| muapiapp | Free | No charge for character creation. |
| Fal.ai | Not available | Gemini Omni Character creation is not offered. |
| Replicate | Not available | Gemini Omni Character creation is not offered. |
No charge for character creation.
Gemini Omni Character creation is not offered.
Gemini Omni Character creation is not offered.
** Competitor pricing is estimated based on similar model architectures and usage tiers.
Configuration schema
| Parameter | Type | Description | Default |
|---|---|---|---|
| Character Description | string | Describe the character's appearance, identity, style, and personality. | A young woman with short silver hair, wearing a dark trench coat, confident and composed demeanor. |
| Reference Image | array | Provide exactly 1 reference image of the character. Maximum 20 MB. Must be a publicly accessible URL. | https://d3adwkbyhxyrtq.cloudfront.net/ai-images/186/712345784292/4a8c5c70-abcc-4920-873e-b0e219986453.jpg |
| Character Name | string | Optional display name for the character. | Aria |
| Voice Profile IDs | array | Optional list of voice profile IDs from Gemini Omni Audio to associate with this character. | a8f1c2d3e4f5b6a7 |
Describe the character's appearance, identity, style, and personality.
A young woman with short silver hair, wearing a dark trench coat, confident and composed demeanor.Provide exactly 1 reference image of the character. Maximum 20 MB. Must be a publicly accessible URL.
https://d3adwkbyhxyrtq.cloudfront.net/ai-images/186/712345784292/4a8c5c70-abcc-4920-873e-b0e219986453.jpgOptional display name for the character.
AriaOptional list of voice profile IDs from Gemini Omni Audio to associate with this character.
a8f1c2d3e4f5b6a7Developer documentation
Provide a reference image: Upload one image via images_list (exactly 1 image, max 20 MB, publicly accessible URL). This is the visual anchor for the character.
Describe the character: Fill in descriptions with appearance, identity, style, and personality details.
Name the character (optional): Set character_name for a human-readable label.
Attach a voice (optional): Pass one or more audio_id values in audio_ids — these come from the Gemini Omni Audio endpoint and give the character a consistent voice.
Use the result: The response includes a character_id, character_name, and an image URL in outputs. Save the character_id for use in future video pipelines that support character-driven generation.
Frequently asked
Exactly one image is required and supported. The image must be a publicly accessible URL and no larger than 20 MB.
Voice profile IDs are created using the Gemini Omni Audio endpoint. Call that endpoint first to register a voice, then pass the returned `audio_id` here.
The image URL returned in `outputs` is the generated character image — a visual representation of the character derived from your reference photo and description.