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| <title>Seedance 1.0 — ByteDance video generation models</title> | |
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| <a class="jump opt" href="#capabilities">Capabilities</a> | |
| <a class="jump opt" href="#variants">Variants</a> | |
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| <p class="eyebrow">ByteDance</p> | |
| <h1>Seedance 1.0</h1> | |
| <p class="lede">ByteDance's video generation family, in Pro and Lite variants, covering text-to-video and image-to-video at 480p and 720p. Available as a hosted endpoint; weights are not publicly released.</p> | |
| <ul class="meta"> | |
| <li><b>Developer</b> ByteDance</li> | |
| <li><b>Task</b> text-to-video · image-to-video</li> | |
| <li><b>Resolutions</b> 480p · 720p</li> | |
| <li><b>Weights</b> not public</li> | |
| </ul> | |
| </div> | |
| <section id="capabilities"> | |
| <h2>Capabilities</h2> | |
| <p class="section-note">Characteristics reported by ByteDance in the Seedance 1.0 model introduction. Treat them as vendor claims, not independent measurements.</p> | |
| <div class="grid"> | |
| <div class="card"> | |
| <h3>Multi-shot coherence</h3> | |
| <p>Subject appearance and scene layout are held stable across shot changes within a single generation, rather than each cut resampling the subject.</p> | |
| </div> | |
| <div class="card"> | |
| <h3>Motion and physics</h3> | |
| <p>The Pro variant is tuned for plausible trajectory and contact behaviour — the difference most visible in sports, vehicles and cloth.</p> | |
| </div> | |
| <div class="card"> | |
| <h3>Prompt adherence</h3> | |
| <p>Handles compound prompts that specify subject, action, camera move and style together, instead of collapsing to the dominant noun.</p> | |
| </div> | |
| <div class="card"> | |
| <h3>Style range</h3> | |
| <p>Covers photographic output through to stylised and animated looks from the same checkpoint.</p> | |
| </div> | |
| </div> | |
| </section> | |
| <section id="benchmarks"> | |
| <h2>Reported evaluations</h2> | |
| <p class="section-note">ByteDance publishes results on its internal SeedVideoBench-1.0 suite and points to the public Artificial Analysis arena. Both charts below are ByteDance's own; we have not reproduced the numbers, and the arena leaderboard changes over time, so check the live ranking before quoting it.</p> | |
| <div class="figure-grid"> | |
| <figure> | |
| <img src="https://lf3-static.bytednsdoc.com/obj/eden-cn/lm_sth/ljhwZthlaukjlkulzlp/ark/model_introduction/seedance/pro/intro/image1.png" alt="SeedVideoBench-1.0 multi-dimensional evaluation" loading="lazy" /> | |
| <figcaption><b>SeedVideoBench-1.0.</b> ByteDance's internal evaluation across instruction following, motion and visual aesthetics.</figcaption> | |
| </figure> | |
| <figure> | |
| <img src="https://lf3-static.bytednsdoc.com/obj/eden-cn/lm_sth/ljhwZthlaukjlkulzlp/ark/model_introduction/seedance/pro/intro/image2.png" alt="Artificial Analysis arena results" loading="lazy" /> | |
| <figcaption><b>Artificial Analysis.</b> Blind pairwise preference scores from the public arena, as reported at release.</figcaption> | |
| </figure> | |
| </div> | |
| <ul class="links"> | |
| <li><a href="https://artificialanalysis.ai/text-to-video/arena?tab=leaderboard&input=image" target="_blank" rel="noopener"><span>Artificial Analysis video arena</span><span class="host">artificialanalysis.ai</span></a></li> | |
| <li><a href="https://console.volcengine.com/ark/region:ark+cn-beijing/model/detail?Id=doubao-seedance-1-0-pro" target="_blank" rel="noopener"><span>ByteDance model introduction</span><span class="host">console.volcengine.com</span></a></li> | |
| </ul> | |
| </section> | |
| <section id="variants"> | |
| <h2>Variants</h2> | |
| <p class="section-note">Pro targets output quality; Lite trades some fidelity for a lower cost per run. Per-run pricing is listed on each model page — it changes, so we don't mirror it here.</p> | |
| <div class="table-scroll"> | |
| <table> | |
| <thead><tr><th>Endpoint</th><th>Variant</th><th>Task</th><th>Resolution</th></tr></thead> | |
| <tbody> | |
| <tr><td><code>bytedance/seedance-v1-pro-t2v-480p</code></td><td>Pro</td><td>Text-to-video</td><td>480p</td></tr> | |
| <tr><td><code>bytedance/seedance-v1-pro-i2v-480p</code></td><td>Pro</td><td>Image-to-video</td><td>480p</td></tr> | |
| <tr><td><code>bytedance/seedance-v1-pro-i2v-720p</code></td><td>Pro</td><td>Image-to-video</td><td>720p</td></tr> | |
| <tr><td><code>bytedance/seedance-v1-lite-t2v-480p</code></td><td>Lite</td><td>Text-to-video</td><td>480p</td></tr> | |
| <tr><td><code>bytedance/seedance-v1-lite-i2v-480p</code></td><td>Lite</td><td>Image-to-video</td><td>480p</td></tr> | |
| <tr><td><code>bytedance/seedance-v1-lite-i2v-720p</code></td><td>Lite</td><td>Image-to-video</td><td>720p</td></tr> | |
| </tbody> | |
| </table> | |
| </div> | |
| </section> | |
| <section id="run"> | |
| <h2>Run it</h2> | |
| <p class="section-note">Swap the endpoint path for any variant in the table above; the request body is otherwise the same.</p> | |
| <div class="code"> | |
| <div class="code-tabs" role="tablist"> | |
| <button type="button" role="tab" aria-selected="true" data-panel="run-0">cURL</button> | |
| <button type="button" role="tab" aria-selected="false" data-panel="run-1">Python</button> | |
| <button type="button" role="tab" aria-selected="false" data-panel="run-2">JavaScript</button> | |
| </div> | |
| <pre id="run-0" role="tabpanel"><code># 1. submit the job | |
| curl -X POST "https://api.wavespeed.ai/api/v3/bytedance/seedance-v1-pro-i2v-480p" \ | |
| -H "Authorization: Bearer $WAVESPEED_API_KEY" \ | |
| -H "Content-Type: application/json" \ | |
| -d '{ | |
| "image": "https://example.com/still.jpg", | |
| "prompt": "The camera pushes in slowly as steam rises from the cup", | |
| "duration": 5, | |
| "enable_sync_mode": false | |
| }' | |
| # -> {"code": 200, "data": {"id": "<request-id>", "status": "created", ...}} | |
| # 2. poll until status is "completed" | |
| curl "https://api.wavespeed.ai/api/v3/predictions/<request-id>/result" \ | |
| -H "Authorization: Bearer $WAVESPEED_API_KEY" | |
| # -> {"code": 200, "data": {"status": "completed", "outputs": ["https://..."]}}</code></pre> | |
| <pre id="run-1" role="tabpanel" hidden><code>import os, time, requests | |
| API = "https://api.wavespeed.ai/api/v3" | |
| KEY = os.environ["WAVESPEED_API_KEY"] | |
| HEADERS = {"Authorization": f"Bearer {KEY}"} | |
| # submit | |
| res = requests.post( | |
| f"{API}/bytedance/seedance-v1-pro-i2v-480p", | |
| headers={**HEADERS, "Content-Type": "application/json"}, | |
| json={ | |
| "image": "https://example.com/still.jpg", | |
| "prompt": "The camera pushes in slowly as steam rises from the cup", | |
| "duration": 5, | |
| "enable_sync_mode": false | |
| }, | |
| timeout=30, | |
| ) | |
| res.raise_for_status() | |
| request_id = res.json()["data"]["id"] | |
| # poll | |
| while True: | |
| data = requests.get( | |
| f"{API}/predictions/{request_id}/result", | |
| headers=HEADERS, | |
| timeout=30, | |
| ).json()["data"] | |
| if data["status"] == "completed": | |
| print(data["outputs"][0]) | |
| break | |
| if data["status"] == "failed": | |
| raise RuntimeError(data.get("error", "generation failed")) | |
| time.sleep(1.5)</code></pre> | |
| <pre id="run-2" role="tabpanel" hidden><code>const API = "https://api.wavespeed.ai/api/v3"; | |
| const KEY = process.env.WAVESPEED_API_KEY; | |
| const headers = { Authorization: `Bearer ${KEY}` }; | |
| // submit | |
| const submit = await fetch(`${API}/bytedance/seedance-v1-pro-i2v-480p`, { | |
| method: "POST", | |
| headers: { ...headers, "Content-Type": "application/json" }, | |
| body: JSON.stringify({ | |
| "image": "https://example.com/still.jpg", | |
| "prompt": "The camera pushes in slowly as steam rises from the cup", | |
| "duration": 5, | |
| "enable_sync_mode": false | |
| }), | |
| }); | |
| const { data: { id } } = await submit.json(); | |
| // poll | |
| for (;;) { | |
| const res = await fetch(`${API}/predictions/${id}/result`, { headers }); | |
| const { data } = await res.json(); | |
| if (data.status === "completed") { | |
| console.log(data.outputs[0]); | |
| break; | |
| } | |
| if (data.status === "failed") throw new Error(data.error ?? "generation failed"); | |
| await new Promise((r) => setTimeout(r, 1500)); | |
| }</code></pre> | |
| </div> | |
| <div class="callout"><p>Requests are asynchronous: <code>POST</code> returns a request id, then you poll <code>/predictions/<id>/result</code> until <code>status</code> is <code>completed</code>. Set <code>enable_sync_mode: true</code> to have the call block and return outputs directly.</p><p>API keys are created in the <a href="https://wavespeed.ai/dashboard?utm_source=huggingface&utm_medium=space&utm_campaign=bytedance_seedance" target="_blank" rel="noopener">WaveSpeed dashboard</a>.</p></div> | |
| <div class="btn-row"> | |
| <a class="btn" href="https://wavespeed.ai/collections/bytedance?utm_source=huggingface&utm_medium=space&utm_campaign=bytedance_seedance" target="_blank" rel="noopener">Open Seedance on WaveSpeed</a> | |
| <a class="btn secondary" href="https://wavespeed.ai/docs?utm_source=huggingface&utm_medium=space&utm_campaign=bytedance_seedance" target="_blank" rel="noopener">API reference</a> | |
| </div> | |
| </section> | |
| <section id="limitations"> | |
| <h2>Limitations</h2> | |
| <p class="section-note">Worth knowing before you build on it: output is synthetic and unsuitable as a source of factual imagery; results inherit biases present in the training data; image-to-video quality tracks input image quality closely, and small changes to a prompt or seed can move the result noticeably. Each endpoint is fixed to the resolution listed above.</p> | |
| </section> | |
| <section id="resources"> | |
| <h2>Resources</h2> | |
| <ul class="links"> | |
| <li><a href="https://wavespeed.ai/collections/bytedance?utm_source=huggingface&utm_medium=space&utm_campaign=bytedance_seedance" target="_blank" rel="noopener"><span>Hosted endpoints</span><span class="host">wavespeed.ai</span></a></li> | |
| <li><a href="https://huggingface.co/spaces/wavespeed/seedance" target="_blank" rel="noopener"><span>Video showcase</span><span class="host">huggingface.co</span></a></li> | |
| <li><a href="https://artificialanalysis.ai/text-to-video/arena?tab=leaderboard&input=image" target="_blank" rel="noopener"><span>Artificial Analysis arena</span><span class="host">artificialanalysis.ai</span></a></li> | |
| <li><a href="https://wavespeed.ai/docs?utm_source=huggingface&utm_medium=space&utm_campaign=bytedance_seedance" target="_blank" rel="noopener"><span>WaveSpeed API docs</span><span class="host">wavespeed.ai</span></a></li> | |
| </ul> | |
| </section> | |
| </main> | |
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