AI model comparison · Free
Compare Seedance 2.5 and Runway Gen 4 across capabilities, strengths, limitations, pricing availability, and practical prompt workflows. Use it for free on Unify.
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Seedance 2.5 is provided by ByteDance and emphasizes plan-specific unlimited access on eligible plans and up to 30-second clips. Runway Gen 4, from Runway, emphasizes character consistency and scene control. The stronger option depends on the input, output constraints, and review standard.
Run the same prompt, source context, output format, and acceptance criteria through both models. Score accuracy, instruction following, edit time, latency, and current cost separately. Repeat the test on several representative tasks before standardizing on either model.
| Criteria | Primary | Comparison |
|---|---|---|
| Provider | ByteDance | Runway |
| Category | video | video |
| Top strength | Plan-specific Unlimited access on eligible plans | Character consistency |
| Pricing | New Pro monthly subscriptions include 7-day Unlimited generation at 480p for up to 5 seconds. New Scale monthly subscriptions include 14 days at 720p for up to 5 seconds. Pro yearly includes 14 days at 720p for up to 5 seconds, Scale yearly includes 20 days at 720p for up to 8 seconds, Ultra monthly includes 35 days at 720p or 1080p for up to 15 seconds depending on credit level, and Ultra yearly includes 35 days at 720p or 1080p for up to 20 seconds depending on credit level. Existing subscribers retain the Unlimited settings they purchased. Credit pricing applies outside eligible Unlimited settings. | Check the provider or Unify workspace for current pricing. |
| Context | Not verified | Not verified |
Create a 30-second vertical product story for [product] using the attached product, brand, scene, and audio references. 0-10s: [hook and setting]. 10-20s: [demonstration and camera movement]. 20-30s: [payoff and end frame]. Keep [product] and [character] consistent. If a detail misses the brief, prioritize [background, packaging, or subject] for a targeted revision.
Act as an expert video assistant. Produce a clear, production-ready result for [goal], using [constraints] and [audience].
Compare Seedance 2.5 and Runway Gen 4 across capabilities, strengths, limitations, pricing availability, and practical prompt workflows.
Output is currently limited to 1080p; 4K is not supported. Results can vary with prompt specificity and video task complexity.
Yes. Use the comparison links on this page and test identical inputs before selecting a model.
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