Seedream 4.5 represents ByteDance's latest advancement in generative AI, delivering high-fidelity 4K images with exceptional prompt adherence and editing precision. This model excels in realistic rendering, multi-subject consistency, and professional workflows, making it ideal for creators seeking photorealistic outputs from text descriptions.
Seedream 4.5 demonstrates top-tier results on internal metrics, outperforming predecessors in prompt alignment, aesthetics, and editing accuracy. It achieves higher ELO ratings for realism and consistency, with cleaner high-resolution outputs and fewer corrections needed. Benchmarks highlight its edge in photorealism, text rendering, and logical scene inference over models like Seedream 4.0.
vs Seedream 4.0: 4.5 offers stronger image and character consistency, enhanced text clarity, multi-image fusion with up to 14 inputs (versus fewer in 4.0), and faster generation speeds, providing more reliable high-resolution 4K outputs.
vs Midjourney v6: While Midjourney excels in artistic stylization, Seedream 4.5 offers superior control over text integration and subject consistency across batches. It’s better suited for commercial workflows requiring brand-safe, editable outputs.
vs DALL·E 3: DALL·E 3 leads in prompt understanding for abstract or conceptual tasks. Seedream 4.5, however, delivers higher native resolution and supports multi-reference image fusion.
Measured on the AI/ML API gateway across live traffic. Figures are medians unless stated. Last updated 2026-10-12.
import requests r = requests.post( "https://api.aimlapi.com/v1/images/generations", headers={"Authorization": "Bearer " + AIMLAPI_KEY}, json={ "model": "bytedance/seedream-4-5", "prompt": "A cat holding a sign that says hello" }, ) print(r.json())
const r = await fetch("https://api.aimlapi.com/v1/images/generations", { method: "POST", headers: { Authorization: `Bearer ${process.env.AIMLAPI_KEY}`, "Content-Type": "application/json", }, body: JSON.stringify({ "model": "bytedance/seedream-4-5", "prompt": "A cat holding a sign that says hello" }), }); console.log(await r.json());
curl -X POST https://api.aimlapi.com/v1/images/generations \ -H "Authorization: Bearer $AIMLAPI_KEY" \ -H "Content-Type: application/json" \ -d '{"model":"bytedance/seedream-4-5","prompt":"A cat holding a sign that says hello"}'
OpenAI-compatible — swap the base URL and it works with your existing SDK.
| Type | Price |
|---|---|
| Output | |
| Benchmark | Score | What it measures | Source | Retrieved |
|---|---|---|---|---|
| Text-to-Image Arena | 1021 | Human preference Elo from blind pairwise comparisons of generated images, measured independently by Artificial Analysis | Source | September 28, 2026 |
| Model | Input | Output | Context | Best for |
|---|---|---|---|---|
Seedream 4.5 This page | Image generation at scale | |||
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| Image generation at scale |
Seedream 4.5 takes image, text as input and returns image.
Seedream 4.5 is priced at $0.052 / gen.
Seedream 4.5 is billed per generation — a fixed charge per output rather than by prompt length.
Yes, Seedream 4.5 accepts image input as well as a text prompt.
Seedream 4.5 was built by ByteDance.
Send a request to https://api.aimlapi.com/v1/images/generations with bytedance/seedream-4-5 as the model id.
Yes. Seedream 4.5 is served through AI/ML API, so the same key and endpoint format used for other models applies.
