SeiSei AI

Text-to-Image Generation

Users type a description of a subject, scene, and atmosphere, and the model renders an AI illustration or realistic photo from the prompt text.

No Sign-up Required

Anonymous visitors can generate up to five images per day without creating an account, making it easy to test the service before registering.

Watermark-free Output

Generated images are saved without any SeiSei AI logo or platform watermark, so results are ready for direct use and sharing.

Multiple Aspect Ratios

The generator supports 1:1, 4:3, 3:4, 16:9, and 9:16 ratios, letting users prepare images for different publishing platforms.

High-Quality Models After Login

Registered users can choose from higher-quality models and receive five credits on sign-up, with paid plans offering larger monthly credit quotas.

Prompt Iteration Workflow

Results can be regenerated by adjusting one element at a time, such as lighting, composition, or background, to refine the output gradually.

• Bloggers: generate eye-catching header images and article illustrations without needing design or photography skills
• Social media managers: quickly compare multiple image options for posts, ads, and announcement materials
• E-commerce sellers: create product visual variations to explore different presentation and styling directions
• Content planners: turn vague ideas into visual drafts that can be shared and discussed with a team
• Illustrators and hobbyists: produce character concept art and scene sketches to test moods and compositions

Is SeiSei AI free to use?

Yes. SeiSei AI is a free AI image generation service that requires no registration. Anonymous users can generate up to five images per day with the basic text-to-image model. The free access does not mean every model or an unlimited number of generations is available without cost.

Can I generate images without signing up?

Yes. Visitors can type a description on the homepage and generate images directly without creating an account. Anonymous usage is subject to a daily limit and access controls designed to prevent abuse.

Do generated images contain watermarks?

No. SeiSei AI does not overlay its logo or any platform watermark on generated images. However, the rights and permitted uses of the image content itself still need to be confirmed separately from watermark presence.

Can I use generated images for commercial purposes?

Commercial use can be considered for blogs, social media, advertising, e-commerce, and presentation materials, but it is limited to what the terms of service allow. Users should verify rights for people, trademarks, characters, buildings, and third-party materials before publishing or selling.

Do I need credits to generate after logging in?

Guest users can try SeiSei AI for free up to five images per day. After login, continued generation consumes credits, with the standard model costing one credit per image. Other models display their required credit counts in the model selection screen.

Can I write prompts in Japanese?

Yes. Subjects, places, lighting, composition, art style, and intended use can all be entered in Japanese directly. Starting with short phrases and adding one element at a time based on the generated result is also recommended.

• Enter a prompt. Describe the subject, place, and atmosphere you want, for example a woman in a red coat walking along a cherry blossom path on a spring evening.
• Choose the aspect ratio. Select a format such as 1:1, 4:3, 16:9, or 9:16 depending on where the image will be published, including blogs, social media, or presentations.
• Generate the image. Submit the prompt, and the default SeiSei AI model renders the image without requiring an account or payment for the free daily quota.
• Review and refine. Look at the result and change one element at a time, such as lighting, composition, or background, then regenerate to adjust the output.
• Create an account for more options. Logging in grants five credits once, unlocks higher-quality models, and provides generation history for managing past results.