| Starting modes | Text-to-video, first frame, first-and-last frames, and multimodal reference-led generation are available through the shared workspace. | Text-to-video, first frame, first-and-last frames, multimodal references, reference-video editing, and extension intents use the same workspace. | Both cover common text and frame-led starts. Let the reference set and finishing controls break the tie. |
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| Output duration | The standard Wan 3.0 control accepts 2–30 seconds, plus smart duration where supported by the active task. | The Seedance 2.5 control accepts 4–30 seconds, plus an automatic duration option for compatible tasks. | Wan 3.0 can start at two seconds for a very small motion test. Both can plan a clip up to 30 seconds. |
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| Resolution here | Standard Wan 3.0 exposes 480P, 720P, and 1080P. Wan 3.0 Pro and Prime Pro are separate 1080P, 2K, and 4K options. | The current wan-3.ai Seedance 2.5 integration exposes 480p and 720p. | For 1080P in the standard comparison, Wan 3.0 is the direct choice. Check Pro tiers separately for 2K or 4K. |
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| Reference capacity | Reference mode exposes up to 10 images, 5 video clips, and 5 audio clips. Reference video and audio each have a combined 15-second limit. | Reference mode exposes up to 30 images, 10 videos, and 10 audio clips, with no more than 50 assets total. Reference video and audio each have a combined 30-second limit. | Seedance 2.5 fits a larger, carefully assigned reference pack. A smaller purposeful set is still easier to direct than an unlabelled asset pile. |
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| Native audio | The audio toggle is available, and prompts can direct dialogue, ambience, effects, and music. | The audio toggle is available, and the task can generate synchronized sound with the video. | Both support sound-aware briefs. Choose based on the visual task, then write voice, effects, ambience, and music as separate layers. |
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| Aspect ratio | Adaptive, 16:9, 4:3, 1:1, 3:4, and 9:16 are exposed for compatible text and reference workflows. | Adaptive, 16:9, 4:3, 1:1, 3:4, 9:16, and 21:9 are available for compatible tasks. | Seedance adds a 21:9 option in this workspace. Frame-led, editing, and extension tasks may preserve the source ratio automatically. |
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| Iteration control | An integer seed control is exposed. The same seed can support controlled exploration, but it does not promise identical results. | The current form does not expose a seed. It does expose an option to return the last frame for compatible task handoff. | Choose Wan when recording a seed matters to the test plan; choose Seedance when a returned final frame supports the next shot. |
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| Connected tools | The current form does not expose web search for Wan 3.0. | The current form exposes optional web search for compatible Seedance 2.5 tasks. | Seedance may suit a task that benefits from its supported search tool. Verify factual material independently before publishing any claim. |
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| Output container | The current standard Wan 3.0 form does not present a container-format selector. | The current form presents MP4 and MOV output choices. | Seedance offers a direct container choice. Always confirm the downloaded file against the editor or delivery pipeline. |
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| Best first test | A two-to-six-second single action is a useful way to validate motion, framing, audio direction, and a seed before expanding the brief. | A four-to-eight-second task can validate how a larger reference manifest, returned last frame, format, or search setting affects the workflow. | Neither model is a universal winner. Run the smallest representative brief and score the result against the same acceptance list. |
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