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What is Seedream 4.5?

Seedream 4.5 represents the latest advancement in image generation technology from ByteDance, merging text-to-image creation and image editing into a unified system that produces visuals with remarkable consistency, detail, and adaptability. This new version significantly outperforms earlier models by improving the precision of subject recognition in multi-image editing situations while carefully maintaining essential elements from reference images, such as facial details, lighting effects, color schemes, and overall proportions. Additionally, it exhibits a notable enhancement in rendering typography and fine text with clarity and precision. The model offers the capability to generate new images from textual prompts or alter existing images: users can upload one or more reference images and specify changes in natural language—like instructing the model to "keep only the character outlined in green and eliminate all other components"—as well as modify aspects like materials, lighting, or backgrounds and adjust layouts and text. The outcome is a polished image that exhibits visual harmony and realism, highlighting the model's exceptional flexibility in managing various creative projects. This innovative tool is set to transform how artists and designers approach the processes of image creation and modification, making it an indispensable asset in the creative toolkit. By empowering users with enhanced control and intuitive editing capabilities, Seedream 4.5 is likely to inspire a new wave of creativity in visual arts.

What is Bonsai Image?

The Bonsai Image Ternary 4B MLX 2-bit is a specialized text-to-image diffusion transformer optimized for Apple Silicon, prioritizing high-quality output in its Bonsai Image iteration. By leveraging ternary weights of {−1, 0, +1} alongside FP16 group-wise scaling within its transformer architecture, which includes Q/K/V projections, output projections, and MLP weights, it achieves notable efficiency. This model successfully compresses the FLUX.2 Klein 4B transformer from a hefty 7.75 GB FP16 down to a mere 1.21 GB, resulting in an impressive 6.4× reduction in size while still preserving visual quality and prompt fidelity similar to the original version. The deployment package tailored for Apple Silicon weighs in at 3.88 GB, encompassing the MLX 2-bit diffusion transformer, a 4-bit Qwen3-4B text encoder, and an FP16 Flux2 VAE. Once the text encoder processes the prompt encoding, it is offloaded, ensuring that only the compact transformer and VAE are retained in memory throughout the denoising loop. Additionally, this model incorporates a 4-step FlowMatchEuler sampler with guidance set at 1.0 and a shift of 3.0, effectively eliminating the requirement for CFG and negative prompts, which simplifies the generation process and enhances the overall user experience. Overall, this development marks a noteworthy leap forward in the quest for efficient and high-quality image generation technology, making it accessible for a broader range of applications. Furthermore, the advancements made in this model illustrate the ongoing evolution in the field of machine learning and image synthesis.

Media

Media

Integrations Supported

Eromify
Flyne AI
Higgsfield Soul 2.0
Higgsfield Supercomputer
Magnific
OpenClaw
Piooy
Pixae AI
Seedream

Integrations Supported

Eromify
Flyne AI
Higgsfield Soul 2.0
Higgsfield Supercomputer
Magnific
OpenClaw
Piooy
Pixae AI
Seedream

API Availability

Has API

API Availability

Has API

Pricing Information

Pricing not provided.
Free Trial Offered?
Free Version

Pricing Information

Pricing not provided.
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

seed.bytedance.com/en/seedream4_5

Company Facts

Organization Name

PrismML

Date Founded

2026

Company Location

United States

Company Website

prismml.com

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