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What is Seedream?

With the launch of Seedream 3.0 API, ByteDance expands its generative AI portfolio by introducing one of the world’s most advanced and aesthetic-driven image generation models. Ranked first in global benchmarks on the Artificial Analysis Image Arena, Seedream stands out for its unmatched ability to combine stylistic diversity, precision, and realism. The model supports native 2K resolution output, enabling photorealistic images, cinematic-style shots, and finely detailed design elements without relying on post-processing. Compared to previous models, it achieves a breakthrough in character realism, capturing authentic facial expressions, natural skin textures, and lifelike hair that elevate portraits and avatars beyond the uncanny valley. Seedream also features enhanced semantic understanding, allowing it to handle complex typography, multi-font poster creation, and long-text design layouts with designer-level polish. In editing workflows, its image-to-image engine follows prompts with remarkable accuracy, preserves critical details, and adapts seamlessly to aspect ratios and stylistic adjustments. These strengths make it a powerful choice for industries ranging from advertising and e-commerce to gaming, animation, and media production. Its pricing is simple and accessible, at just $0.03 per image, and every new user receives 200 free generations to experiment without upfront cost. Built with scalability in mind, the API delivers fast response times and high concurrency, making it practical for enterprise-level content production. By combining creativity, fidelity, and affordability, Seedream empowers individuals and organizations alike to shorten production cycles, reduce costs, and deliver consistently high-quality visuals.

What is Karlo?

Karlo is an advanced model crafted to generate images from written descriptions, building upon the remarkable unCLIP architecture created by OpenAI by refining the standard super-resolution model to effectively capture intricate details at a notable resolution of 256px while minimizing noise through a limited series of denoising iterations. The development of Karlo involved an extensive training process that commenced from scratch, utilizing a large dataset of 115 million image-text pairs, which encompassed sources like COYO-100M, CC3M, and CC12M. In constructing the Prior and Decoder components, we implemented the sophisticated ViT-L/14 text encoder from OpenAI's CLIP library. To enhance the model’s performance, we made a significant modification to the original unCLIP framework; instead of employing a trainable transformer within the decoder, we integrated the text encoder from ViT-L/14, significantly boosting the model's potential. This strategic modification not only simplified the architectural design but also played a crucial role in enhancing both the quality and fidelity of the generated images, thus marking a significant advancement in the field. Overall, Karlo's innovative approach represents a meaningful step forward in the integration of text and visual content.

Media

Media

Integrations Supported

B^ DISCOVER
B^ EDIT
ModelArk

Integrations Supported

B^ DISCOVER
B^ EDIT
ModelArk

API Availability

Has API

API Availability

Has API

Pricing Information

Pricing not provided.
Free Trial Offered?
Free Version

Pricing Information

Free
Free Trial Offered?
Free Version

Supported Platforms

SaaS
Android
iPhone
iPad
Windows
Mac
On-Prem
Chromebook
Linux

Supported Platforms

SaaS
Android
iPhone
iPad
Windows
Mac
On-Prem
Chromebook
Linux

Customer Service / Support

Standard Support
24 Hour Support
Web-Based Support

Customer Service / Support

Standard Support
24 Hour Support
Web-Based Support

Training Options

Documentation Hub
Webinars
Online Training
On-Site Training

Training Options

Documentation Hub
Webinars
Online Training
On-Site Training

Company Facts

Organization Name

ByteDance

Date Founded

2012

Company Location

China

Company Website

www.byteplus.com/en/product/Seedream

Company Facts

Organization Name

Kakao Brain

Date Founded

2017

Company Location

South Korea

Company Website

github.com/kakaobrain/karlo

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