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ByteDance Seed

Seedance 2.5

ByteDance's current audiovisual model for coherent clips up to 30 seconds, with native sound, long-form storytelling, rich references, and targeted editing.

Plain-English overview

What Seedance 2.5 actually is

Seedance 2.5 generates picture and sound together, so dialogue, movement, ambience, effects, and background music can follow the same timeline. It accepts text and can also use image, video, and audio references for more controlled production work.

This is a video model rather than a standalone music generator. Its audio is valuable when a finished clip needs synchronized sound, while Eleven Music, Lyria, or Seed-Music are better comparisons when the deliverable is an audio track by itself.

Good fit for

  • Sound-on social and advertising videos
  • Longer AI clips with multiple shots
  • Reference-heavy audiovisual production

Category comparison

The facts that matter for video models

These are provider-published specifications, not Cody benchmark scores. Follow the linked sources for current limits and endpoint-specific exceptions.

Generation price
$0.0214 / 1K video tokens on falCurrent list price per generated second or the provider's closest billing unit.
Clip duration
4–30 seconds; official extensions supportedDocumented duration choices or maximum clip length.
Maximum output
720p text route; fal image route also lists 1080pHighest provider-documented output resolution, with relevant constraints.
Native audio
Yes, jointly generated with videoWhether the endpoint generates synchronized audio with video.
Input modes
Text, image, video, audio, and reference assetsSupported text, image, video, reference, or motion inputs.
Generation time
Not publishedOnly shown when a provider publishes a range; not a Cody benchmark.

Pricing & comparisons

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Example: 8-second, 720p clips with audio. Models that do not support these settings will not receive an estimate.

Seedance 2.5

ByteDance Seed

Estimated total (USD)

No reviewed rate

For the usage above · USD · API pricing, not a subscription

How this estimate works

Estimates exclude taxes, tools, cache storage/writes, free allowances and custom discounts. Image estimates cover output only, not prompt or reference-image charges. Quality modes differ by model. Unlisted settings are not treated as free.

API and provider access

Where to get Seedance 2.5

Availability

Regions and access stage

Available through ByteDance creator products and partner-hosted text-, image-, and reference-to-video endpoints on fal.

ByteDance product availability and fal processing terms vary by account and region. ByteDance announced BytePlus ModelArk API access as coming soon at launch.

Check live availability

Data and training

The route matters.

fal stores request inputs and outputs by default. Its X-Fal-Store-IO: 0 request header prevents payload storage, but uploaded CDN files need separate lifecycle handling; other Seedance routes have their own terms.

This is a concise reading of the cited provider material, not legal advice. A third-party gateway can have different storage, routing, training, and residency terms from the model maker's direct API.

Read the provider policy

Frequently asked questions

Seedance 2.5 FAQ

What is Seedance 2.5?

ByteDance's current audiovisual model for coherent clips up to 30 seconds, with native sound, long-form storytelling, rich references, and targeted editing. Seedance 2.5 generates picture and sound together, so dialogue, movement, ambience, effects, and background music can follow the same timeline. It accepts text and can also use image, video, and audio references for more controlled production work.

When was Seedance 2.5 released?

Seedance 2.5 was released on July 31, 2026 according to the cited provider materials.

Where can I access Seedance 2.5?

Available through ByteDance creator products and partner-hosted text-, image-, and reference-to-video endpoints on fal. The access routes listed in this guide are ByteDance Seed and fal.

How much does Seedance 2.5 cost?

$0.0214 / 1K video tokens on fal. For common 16:9 output, fal estimates about $0.2205 per second at 480p or $0.4730 per second at 720p. The authoritative cost uses output dimensions, duration, frame rate, and the endpoint's token formula.

Where is Seedance 2.5 available?

Available through ByteDance creator products and partner-hosted text-, image-, and reference-to-video endpoints on fal. ByteDance product availability and fal processing terms vary by account and region. ByteDance announced BytePlus ModelArk API access as coming soon at launch.

Is my Seedance 2.5 API data used for training?

fal stores request inputs and outputs by default. Its X-Fal-Store-IO: 0 request header prevents payload storage, but uploaded CDN files need separate lifecycle handling; other Seedance routes have their own terms. The policy belongs to the provider route and account terms, so verify it again before production use.

Related comparisons

Head-to-head comparisons

  1. Seedance 2.5 vs Sora 2

    OpenAI's legacy synced-audio video model for short text- or image-guided clips—still documented, but approaching a permanent API shutdown.

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  2. Seedance 2.5 vs Veo 3.1

    Google's preview video model for text-, image-, and video-guided generation with native audio and output options up to 4K.

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  3. Seedance 2.5 vs Veo 3.1 Fast

    Google's lower-cost Veo 3.1 variant for quickly creating short video clips with native audio and output options up to 4K.

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  4. Seedance 2.5 vs Runway Gen-4.5

    Runway's flagship developer video model for text- and image-guided clips, with professional formats and a predictable credit-per-second base rate.

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  5. Seedance 2.5 vs Kling Video 3.0 Pro

    Kuaishou's Pro video model delivered through fal for multi-shot text/image generation, optional native audio, references, and clips up to 15 seconds.

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  6. Seedance 2.5 vs Kling Video 2.5 Turbo Pro

    A cost-conscious Kling model on fal for fluid five- or ten-second clips generated from text or a starting image.

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  7. Seedance 2.5 vs Grok Imagine Video 1.5

    SpaceXAI's current video model for turning text, images, or references into short clips with optional generated speech and sound.

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  8. Seedance 2.5 vs HappyHorse 1.1

    Alibaba's unified video family for creating short clips with sound from text, a starting image, or a reference video.

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  9. Seedance 2.5 vs LTX-2.5 Pro

    Lightricks' quality-focused video model for making 720p or 1080p clips from text, images, or audio with native sound.

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  10. Seedance 2.5 vs LTX-2.5 Fast

    LTX's speed-optimized video model for text, image, or audio input, native sound, automatic duration, and output up to 4K.

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  11. Seedance 2.5 vs LTX-2.3 Pro

    LTX's mature full-workflow video model for generation plus Retake, Extend, Reframe, native audio, and first-to-last-frame control.

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