Supported Models

This reference lists all supported AI models across Sivi's design, image, and text generation APIs.

Design Generation Models

Used in the Update Brand genModePreference field and design generation endpoints.

Name	Value	Credits	Label	Premium
Auto Model	auto	1–3	per design	No
Sivi Gen-2.7	sivi-gen-27	1	per design	No
Sivi Gen-3	sivi-gen-3	1.5	per design	No

Design Gen Mode Mapping

Gen Mode	Allowed Models
compose	auto, sivi-gen-27, sivi-gen-3

| imagine | auto, nano-banana:1k, nano-banana-2:1k, nano-banana-2:2k, nano-banana-2:4k, nano-banana-pro:1k, nano-banana-pro:2k, nano-banana-pro:4k, gpt-image-1:low, gpt-image-1:medium, gpt-image-1:high |

Image Generation Models

Used in the Generate Media endpoint and Update Brand imageGenPreference field.

Name	Value	Credits	Label	Premium	Can Generate	Can Enhance
Auto	auto	0.03–3	per image	No	Yes	Yes
Flux Schnell	flux-schnell	0.03	per image	No	Yes	No
Flux Klein 4b	flux-klein-4b	0.03	per image	No	Yes	No
Flux Klein 9b	flux-klein-9b	0.05	per image	No	Yes	Yes
Flux Dev	flux-dev	0.05	per image	Yes	Yes	No
TwinFLOW Z Image Turbo	twinflow-z-image-turbo	0.05	per image	No	Yes	No
Z Image Turbo	z-image-turbo	0.1	per image	No	Yes	No
Nano Banana	nano-banana:1k	2	per image	Yes	Yes	Yes
Nano Banana 2	nano-banana-2:1k	2	per image	Yes	Yes	Yes
Nano Banana Pro	nano-banana-pro:1k	3	per image	Yes	Yes	Yes

Supported Dimensions by Model

Most image models support the following dimensions:

Width	Height	Aspect Ratio
1024	1024	1:1
1344	768	7:4
1280	960	4:3
960	1280	3:4
768	1344	4:7

Nano Banana, Nano Banana 2, and Nano Banana Pro additionally support:

Width	Height	Aspect Ratio
1264	848	~3:2
848	1264	~2:3
1200	896	~4:3
896	1200	~3:4
1152	928	~5:4
928	1152	~4:5
1376	768	~16:9
768	1376	~9:16
1548	672	~23:10

Text Generation Models

Used in the Update Brand textGenPreference field.

Name	Value	Credits	Label	Premium
Auto	auto	2.5–3	per 1M Tokens	No
Gemini Flash 3.0	gemini-3-flash-preview	8.3	per 1M Tokens	No
Grok 4.1	grok-4-1-fast-non-reasoning	3.3	per 1M Tokens	Yes
GLM 5	zai-org/glm-5-maas	16.6	per 1M Tokens	Yes

Usage Notes

• When auto is specified, Sivi selects the best model based on the request context
• Premium models require an active subscription plan
• Can Generate = supports creating images from a text prompt alone
• Can Enhance = supports modifying existing images with a prompt
• Can Combine = supports combining multiple image assets in a single request
• Always verify that the model supports your intended operation before making a request