Introducing Seedream 4.5: A smarter, more faithful upgrade to ImageGen

AI image generation continues to accelerate, and Bytedance’s latest release, Seedream 4.5, marks a major leap forward in both realism and control. Seedream 4.5 builds on the SD4 family, offering improved identity preservation, enhanced aesthetics, and significantly more accurate instruction following.

We’ve now upgraded Envato ImageGen to use Seedream 4.5 in workflows that involve a reference image. This means you’ll immediately see better results when enhancing photos, applying stylistic changes, or generating variations. 

You don’t need to change your workflow; ImageGen automatically produces better results, alongside other models under the hood in ImageGen, such as Flux.2 and Nano Banana Pro.

Let’s unpack what’s new.

What is Seedream 4.5?

Seedream 4.5 is Bytedance’s newest evolution of the SD4 image model, designed to deliver:

• Stronger preservation of faces and subject identity
• More cinematic, aesthetically refined output
• Smarter interpretation of multi-step instructions
• Cleaner textures and better lighting control

The model’s improved ability to hold onto the details of the original image, while still applying creative direction, makes it one of the most powerful SD4-class upgrades to date.

How Seedream 4.5 enhances ImageGen

Seedream 4.5 improves ImageGen in three major ways, especially in reference-image workflows.

1. Better preservation of original images

Seedream 4.5 is significantly better at maintaining:

• Facial identity and expressions
• Lighting direction and color tone
• Hair detail
• Subject proportions
• Fine textures

This means your enhanced or restyled images no longer drift away from the original person or product.

2. More cinematic, aesthetic results

Seedream 4.5 delivers richer artistic qualities, including:

• Film-like lighting
• More natural shadows
• Balanced highlights
• Subtle color grading
• Stronger composition instincts

Images appear polished and intentional, making them especially useful for social visuals, branding, and editorial-style content.

3. Smarter instruction following

The model follows complex or multi-step prompts far more accurately. This includes:

• Workflow-style prompts (“brighten the image, keep the face the same, change the background”)
• Detailed stylistic requests
• Layered modifications

This means fewer retries and faster iteration, especially for precise creative direction.

How Envato subscribers benefit

Seedream 4.5 upgrades your workflow automatically, eliminating the need for extra switches, menus, or technical settings.

In other words, ImageGen simply improves, allowing your visuals to become more professional with less effort.