Seedream 4.5, developed by ByteDance’s Jimeng AI, is a versatile, high-fidelity model that unifies creative generation with precise image editing. Engineered for professional consistency and intricate text rendering, it excels at multi-subject fusion, brand identity, and high-resolution marketing assets. By bridging spatial logic with artistic control, Seedream 4.5 empowers designers with a seamless, instruction-driven workflow that transforms complex concepts into polished, commercial-grade visuals.
Lowest cost
| Modality | Description |
|---|---|
| Seedream v4.5 T2I API(Text To Image) | The Seedream v4.5 T2I API enables creators to instantly convert text descriptions into high-fidelity visuals. Featuring PNG output and a fast prompt optimization mode, it streamlines the design process for rapid prototyping, UI/UX conceptualization, and high-speed creative iteration where speed and clarity are paramount. |
| Seedream v4.5 I2I Edit API(Image To Image) | The Seedream v4.5 I2I Edit API provides developers with tools to transform existing images through text prompt and reference images. It allows for seamless style transfers and precise content editing, perfect for iterative design and brand asset customization. |
| Seedream v4.5 T2I Sequential API(Text To Image) | The Seedream v4.5 T2I Sequential API revolutionizes bulk content creation by generating up to 15 related images in a single request. It is optimized for high-volume asset production, storyboard expansion, and comprehensive visual world-building. |
| Seedream v4.5 I2I Edit Sequential API(Image To Image) | The Seedream v4.5 I2I Edit Sequential API empowers users to apply consistent edits across a series of images simultaneously. By processing up to 15 related visuals in a single batch, it ensures visual harmony and style continuity, making it the ideal solution for character design variations, sequence editing, and complex visual storytelling. |
Combining advanced models with Atlas Cloud's GPU-accelerated platform delivers unmatched speed, scalability, and creative control for image and video generation.

Seedream 4.5 pioneers a "generate-and-edit" paradigm that merges initial creation with precise, instruction-based refinement. By understanding natural language commands for in-image modifications, it eliminates the need for complex masking or separate tools. It is the definitive solution for iterative design, enabling rapid adjustments to composition, color, and elements for streamlined commercial workflows.

Seedream 4.5 introduces powerful multi-image fusion capabilities, ensuring unwavering consistency for subjects and styles. By referencing one or more source images, it locks key features—like a person's face or a product's design—across diverse creative outputs. This makes it an indispensable tool for developing coherent brand campaigns, character-driven stories, and consistent visual narratives.

Seedream 4.5 overcomes a critical industry challenge with its superior text and spatial rendering engine. It generates clean, accurate typography and precisely interprets complex positional instructions ("place the red cup to the left of the blue book"). This feature is purpose-built for creating polished marketing assets, product mockups, and intricate graphic designs where detail and logic are paramount.
Discover practical use cases and workflows you can build with this model family — from content creation and automation to production-grade applications.
The Seedream 5.0 API empowers brands to generate visuals that pulse with the real world. By integrating industry-first Real-Time Web Search, it captures trending aesthetics and live data to produce culturally relevant imagery. It is the ultimate solution for news-responsive social campaigns, data-driven editorial content, and any project requiring up-to-the-minute global context and visual storytelling.
For projects demanding structural integrity, Seedream 5.0 delivers images with embedded vertical logic and strict physics compliance. It masters complex spatial layouts, consistent lighting, and material accuracy. This use case fits architectural visualization, industrial product design, and scientific illustrations where precision and real-world physical laws are as critical as aesthetic quality.
Seedream 5.0 offers unparalleled control over visual persistence through its Sequential Generation and advanced reference capabilities. By learning and reusing specific visual elements, creators can maintain perfect identity consistency across multiple frames. Ideal for character world-building, high-end fashion lookbooks, and cohesive brand asset suites that require a unified stylistic voice across every request.
See how models from different providers stack up — compare performance, pricing, and unique strengths to make an informed decision.
| Model | Reference Image Limit | Output Num | Resolution | Aspect Ratio |
|---|---|---|---|---|
| Seedream 4.5 | 10 | 1~15 | 1080P~4K+ | Width[1440, 4096]px; Height[1440, 4096]px |
| Seedream 5.0 Lite | 14 | 1~15 | 2K~4K+ | 1:1 3:2 2:3 3:4 4:3 4:5 5:4 9:16 16:9 21:9 |
| Nano Banana 2 | 14 | 1 | 4K, 2K, 1K | 1:1 3:2 2:3 3:4 4:3 4:5 5:4 9:16 16:9 21:9 |
| Qwen-Image | 3 | 1~6 | 512P~2K | Width[512, 2048]px; Height[512, 2048]px |
| Wan 2.6 I2I(Image To Image) | 4 | 1 | 580P~1080P+ | 1:1 3:2 2:3 3:4 4:3 4:5 5:4 9:16 16:9 21:9 9:21 |
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Combining the advanced Seedream4.5 Models models with Atlas Cloud's GPU-accelerated platform provides unmatched performance, scalability, and developer experience.
Low Latency:
GPU-optimized inference for real-time reasoning.
Unified API:
Run Seedream4.5 Models, GPT, Gemini, and DeepSeek with one integration.
Transparent Pricing:
Predictable per-token billing with serverless options.
Developer Experience:
SDKs, analytics, fine-tuning tools, and templates.
Reliability:
99.99% uptime, RBAC, and compliance-ready logging.
Security & Compliance:
SOC 2 Type II, HIPAA alignment, data sovereignty in US.
The Seedream v4.5 Sequential API allows for the generation of up to 15 related images in a single request, ensuring strict thematic and stylistic consistency across the entire batch.
Yes. Seedream 4.5 features an upgraded typography engine designed to produce crisp, legible, and contextually accurate text in various fonts and languages. This capability addresses a common industry pain point, making it an ideal tool for creating professional posters, book covers, and marketing materials directly.
The model utilizes advanced "Multi-Subject Fusion" technology that locks key features—such as character faces, product details, or specific artistic styles—from reference images. This ensures that assets generated for a single brand campaign or narrative maintain a coherent visual identity across different scenes and compositions.
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