Seedream 4.5 — AI image generator
Seedream at up to 4K with aspect-ratio control
Seedream 4.5 is the high-resolution member of the Seedream family, reaching 4K with a full set of aspect ratios. It is text-to-image only in practice — its schema lists an image field, but the model ignores what you upload, so treat the prompt as the whole brief.
What Seedream 4.5 is good at
- Up to 4K output
- Nine aspect ratios including 21:9 and 9:16
- Strong photographic realism
- Predictable, prompt-driven results with no reference to manage
What people use it for
- Wallpapers, backdrops and large-format stills
- Vertical hero images for mobile-first layouts
- Photoreal scenes built entirely from a written description
Seedream 4.5 specifications
- Resolution
- 2K, 4K
- Aspect ratios
- match_input_image, 1:1, 4:3, 3:4, 16:9, 9:16, 3:2, 2:3, 21:9
- Reference image
- Not used
Plan limits apply on top of these — see pricing.
Example prompts for Seedream 4.5
Written for this model in particular. Open one in the composer and edit it from there.
“An empty cinema auditorium lit only by the screen, deep red seats, wide 21:9”
Try this prompt“A misty pine forest at first light, layered depth, cool palette, 4K”
Try this prompt“Vertical shot of a spiral staircase looking straight up, brutalist concrete, 9:16”
Try this promptSeedream 4.5 FAQ
- What is Seedream 4.5?
- Seedream 4.5 is an AI image model from ByteDance, available on Vixlens. Seedream 4.5 is the high-resolution member of the Seedream family, reaching 4K with a full set of aspect ratios. It is text-to-image only in practice — its schema lists an image field, but the model ignores what you upload, so treat the prompt as the whole brief.
- What resolution does Seedream 4.5 output?
- Seedream 4.5 outputs at 2K, 4K on Vixlens.
- How much does Seedream 4.5 cost?
- Generating needs a plan — there is no free tier. Starter is $10/month for 1,000 credits (launch offer: $6/month for the first 20 Starter subscribers, locked in while they stay subscribed). Credits are spent per generation based on the model, resolution and duration, and the exact cost is shown before you generate.
Other image models on Vixlens
GPT Image 2
OpenAI's image model, and the one to trust with text in the frame
GoogleNano Banana Pro
Google's highest-fidelity Gemini image model, up to 4K
GoogleNano Banana 2.1
Google's Gemini image model for multi-reference work, up to 4K
GoogleNano Banana 2 Lite
Google's fastest Gemini image model
RecraftRecraft v4.1
Fast, cost-efficient image generation with real style controls
RecraftRecraft v4.1 Pro
High-resolution Recraft, at 2048px and above
Start generating with Seedream 4.5
Every model on one credit balance — pick a plan and start creating.