Seedance vs Google Veo: The Complete Video API Comparison

Pick Seedance 2.5 for single takes up to 30 seconds built from up to 50 references, and pick Google Veo 3.1 for 8-second clips at the lowest per-second price or at 4K. Google Veo is Google's video model, not the Veo sports-camera company. For software teams building programmable media pipelines, ByteDance sells Seedance through BytePlus ModelArk, and Google sells Veo through the Gemini API.

The choice narrowed after OpenAI discontinued the Sora web and app experiences on April 26, 2026, and shut down the Sora API on September 24, 2026. More background on the wider market shift appears in our comparison of Seedance vs Sora vs Veo.

Every Seedance and Veo price and spec here comes from Google's and BytePlus's own documentation. Video model prices change without notice, so verify current figures on the official Google pricing page and the official BytePlus pricing page before finalizing a production budget.

Seedance 2.5 vs. Google Veo 3.1: Side-by-Side

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Seedance or Google Veo: Which to Pick

Seedance 2.5 wins on single-take clip duration and multi-asset reference control, while Google Veo 3.1 wins on low-cost high-volume tiers and native 4K output. If your workflow requires narrative continuity across scene cuts, character consistency derived from multiple reference images, or single takes longer than 8 seconds, Seedance 2.5 is the superior technical fit. If your goal is generating high-volume social video at the lowest cost per second, or producing native 4K video clips, Google Veo 3.1 is the better economic choice.

Choosing Seedance 2.5 gives developers up to 30 seconds of continuous footage in a single API request, eliminating the need to stitch short takes together. The model accepts up to 50 reference files across images, video clips, and audio tracks, so one request can carry the character images, clips and audio a scene needs. Teams building complex multi-shot sequences can review our Seedance alternatives guide to evaluate how other tools compare on prompt steering.

Choosing Google Veo 3.1 is optimal for production pipelines that operate on tight unit economics. Google's Veo 3.1 Lite ($0.05 per second at 720p) and Veo 3.1 Fast ($0.10 per second at 720p) undercut Seedance 2.5 ($0.231 per second at 720p) by substantial margins. If you already use the Gemini API, Veo 3.1 is another model on the same API.

Neither pick suits a team that needs a free API tier. Veo 3.1 has none in the Gemini API, and BytePlus recommends a balance above USD 30 before enabling Seedance 2.5. For a free trial, Runway's free plan gives 125 one-time credits.

Our assessment would change if Google adds native generation lengths beyond 8 seconds to Veo 3.1, or if BytePlus introduces a competitive sub-$0.10 per second tier for Seedance 2.5. Until then, the decision boundary is sharp: pay a premium to Seedance for length and scene control, or use Veo for budget short-form generation.

• Pick Seedance 2.5 if you need single takes from 9 to 30 seconds without chaining API calls.
• Pick Seedance 2.5 if you need reference control using up to 50 distinct visual and audio assets.
• Pick Google Veo 3.1 Fast or Lite if your primary operational metric is the lowest cost per generation second.
• Pick Google Veo 3.1 Standard or Fast if your delivery specification requires native 4K resolution.
• Pick Google Veo 3.1 if your pipeline is already standardized on Google Gemini API endpoints.

Clip Length and Scene Continuity

Seedance 2.5 generates longer single takes than any Google Veo 3.1 variant. Seedance 2.5 supports continuous generation durations from 4 to 30 seconds in one execution call. The earlier Seedance 2.0 model supports 4 to 15 seconds. Generating 30 uninterrupted seconds allows a developer to animate a complete monologue, a continuous camera tracking shot, or an extended product interaction in one call.

Google Veo 3.1 generates 4, 6, or 8 seconds per execution call. The Gemini API restricts output length strictly: any call requesting 1080p, 4K resolution, or using reference images must be exactly 8 seconds. Standard and Fast tiers do support a video extension endpoint that appends 7 seconds to an existing Veo clip up to 20 consecutive times, yielding a maximum sequence of 148 seconds. However, this extension feature is restricted to 720p resolution and requires that the input video was generated by Veo within the preceding 2 days.

Extension calls add steps that a single long generation does not. Google's documentation lists generation latency between 11 seconds and 6 minutes at peak load. Chaining four extension calls to assemble a 36-second video introduces multiple network round-trips, compounding latency, and potential points of pipeline failure. Seedance delivers a 30-second scene in a single request.

• Seedance 2.5: native output duration from 4 to 30 seconds at 480p, 720p, or 1080p.
• Seedance 2.0: native output duration from 4 to 15 seconds across all resolutions including 4K.
• Google Veo 3.1: native output duration of 4, 6, or 8 seconds (locked to 8 seconds at 1080p and 4K).
• Google Veo 3.1 extension: adds 7 seconds per call up to 20 times (148s total), limited to 720p.
• Veo extension inputs must be Veo-generated videos stored on Google servers within the last 48 hours.

Reference Control and Video Editing

Seedance 2.5 accepts far more reference material than Veo 3.1. ByteDance built Seedance 2.5 with an omni reference architecture capable of ingesting up to 50 reference files per request. Developers can supply up to 30 reference images, 10 reference video clips, and 10 reference audio files simultaneously. This allows an automated pipeline to pass character turnaround sheets, environmental background plates, and audio pacing guides into the same generation pass.

Seedance 2.5 also provides editing modes, including first-frame conditioning, first-and-last-frame interpolation, video editing, video extension, and a dedicated Draft mode for rapid testing. Seedance 2.0 supports up to 15 reference assets. Feeding video into Seedance 2.5 raises token use with input length: at 720p, BytePlus lists $1.244 to $4.838 per 5-second output for 2 to 30 seconds of input video.

Google Veo 3.1 provides more modest conditioning tools. Veo 3.1 Standard and Fast models accept text prompts, image-to-video starter frames, first-and-last-frame pairs for interpolation, and up to 3 reference images to guide visual style. The budget Veo 3.1 Lite model does not support reference images at all. For character consistency across scenes, Veo caps reference images at 3, against 30 on Seedance 2.5.

• Seedance 2.5 Omni Reference: accepts up to 50 assets (30 images, 10 videos, 10 audio tracks).
• Seedance 2.0 Reference: supports up to 15 reference assets for visual steering.
• Google Veo 3.1 Reference: supports up to 3 reference images on Standard and Fast tiers only.
• Google Veo 3.1 Lite: accepts no reference images.
• Both platforms support first-and-last-frame interpolation to bridge gaps between existing shots.

Pricing Models and Worked Cost Comparisons

The economic models of the two platforms differ fundamentally in structure and unit metrics. Google bills Veo 3.1 on a straightforward per-second rate for completed video generations. BytePlus bills Seedance on consumed video tokens per million, where token usage scales with input duration, output duration, resolution, and frame rate. Detailed breakdowns of Google's pricing appear in our Veo 3 pricing guide, and ByteDance's details are documented in our Seedance 2.5 pricing guide.

Google Veo 3.1 pricing operates across three distinct tiers. At 720p, Lite costs $0.05 per second, Fast costs $0.10 per second, and Standard costs $0.40 per second. At 1080p, Lite costs $0.08 per second, Fast costs $0.12 per second, and Standard costs $0.40 per second. Standard and Fast tiers support 4K output at $0.60 and $0.30 per second, respectively. Generating an 8-second clip at 1080p costs $0.64 on Lite, $0.96 on Fast, and $3.20 on Standard.

BytePlus publishes effective per-video pricing benchmarks for Seedance on 5-second 16:9 outputs without video inputs. On Seedance 2.5, a 5-second clip costs $0.514 at 480p ($0.103 per second), $1.156 at 720p ($0.231 per second), and $2.843 at 1080p ($0.569 per second). On older Seedance 2.0 models, a 5-second 720p clip is $0.76 ($0.15 per second), while 4K output costs $3.89 ($0.78 per second). Cheaper variants exist: Seedance 2.0 Fast lists at $0.12 per second at 720p, and Seedance 2.0 Mini lists at $0.08 per second at 720p. For budget comparisons, see our Seedance 2.0 Mini vs Veo guide.

A limited-time enterprise discount applies to BytePlus users between August 7 and October 7, 2026. During this promotional window, enterprise accounts receive 60 percent off Seedance 2.0 Mini (reducing 720p generation to approximately $0.03 per second) and 25 percent off Seedance 2.0 Fast (reducing 720p generation to approximately $0.09 per second). Outside that enterprise window, Veo 3.1 Lite is the cheapest 720p option at $0.05 per second.

Consider a practical scenario: generating an 8-second 1080p marketing video. On Google Veo 3.1 Fast, the cost is exactly 8 seconds multiplied by $0.12, which equals $0.96. On Seedance 2.5, an 8-second 1080p generation costs roughly $4.55 (8 × $0.569) at the $11.70-per-million token rate. Veo 3.1 Fast is nearly five times cheaper for that short shot. However, if that shot requires a 30-second continuous take at 720p, Seedance 2.5 accomplishes it in one run for approximately $6.93 ($0.231 multiplied by 30). Doing the same on Veo requires an initial 8-second clip plus four 7-second extensions. Assuming Google bills extension seconds at the standard per-second rate (which developers should verify on the official Google pricing page), 36 total seconds on Veo Fast would cost $3.60, but with the 720p resolution cap and the latency of five sequential API calls.

Seedance models are also hosted inside creative applications like Runway. Runway lists Seedance 2.0 Pro 1080p at 160 credits per 4 seconds and Seedance 2.0 Fast at 116 credits per 4 seconds across its paid tiers, detailed on the Runway pricing page. A Runway credit price is Runway's price, not ByteDance's ModelArk rate.

• 720p entry prices: Veo 3.1 Lite ($0.05/s), Seedance 2.0 Mini ($0.08/s list), Veo 3.1 Fast ($0.10/s), Seedance 2.5 ($0.231/s).
• 1080p entry prices: Veo 3.1 Lite ($0.08/s), Veo 3.1 Fast ($0.12/s), Seedance 2.0 ($0.37/s), Veo Standard ($0.40/s), Seedance 2.5 ($0.569/s).
• 4K prices: Veo 3.1 Fast ($0.30/s), Veo 3.1 Standard ($0.60/s), Seedance 2.0 ($0.78/s); Seedance 2.5 lacks 4K.
• Enterprise promotion: Seedance 2.0 Mini drops to ~$0.03/s and Fast to ~$0.09/s until October 7, 2026.
• Input video tax: adding reference video inputs to Seedance 2.5 scales token usage and raises the cost per generation.

→ Compare per-token pricing for every AI model

Cost per Deliverable for Common Workloads

A batch of 1,000 eight-second clips ranges from $400 on Google Veo 3.1 Lite to $4,552 on Seedance 2.5 at 1080p. At eight seconds or less, Veo Lite and Veo Fast undercut Seedance 2.5 across both 720p and 1080p. Veo Standard costs less than Seedance 2.5 at 1080p, but costs more at 720p where Seedance runs $1,848 against Veo Standard at $3,200.

Single continuous takes change that balance because Seedance 2.5 generates up to 30 seconds in one call. That 30-second deliverable costs about $6.93 at 720p and about $17.07 at 1080p on Seedance 2.5. By contrast, Veo 3.1 caps a single call at eight seconds, which forces teams to stitch separate generations or rely on extensions.

The extension route on Veo operates only at 720p on Fast and Standard tiers. Adding four extensions to an eight-second clip yields 36 seconds for $3.60 on Fast and $14.40 on Standard. That assumes Google bills extensions at base rates on the Google pricing page, since Veo cannot extend clips at 1080p.

Seedance 2.5 remains competitive when a deliverable requires a single take past eight seconds or aspect ratios like 21:9, 4:3, 1:1, and 3:4. Rates change without notice, so verify live billing on the BytePlus pricing page. For 1,000 eight-second deliverables in standard 16:9 or 9:16 framing, total costs break down across each tier.

• 720p batch: Veo Lite costs $400, Veo Fast costs $800, Seedance 2.5 costs $1,848, and Veo Standard costs $3,200.
• 1080p batch: Veo Lite costs $640, Veo Fast costs $960, Veo Standard costs $3,200, and Seedance 2.5 costs about $4,552.
• 4K batch: Veo Fast costs $2,400, Veo Standard costs $4,800, and Seedance 2.0 costs $6,240, while Seedance 2.5 offers no 4K option.

→ Compare per-token pricing for every AI model

Aspect Ratios and Language Coverage

Production delivery specifications often mandate specific frame dimensions and localized text comprehension. Seedance 2.5 provides broad framing versatility, supporting seven distinct aspect ratios: 21:9 ultra-wide, 16:9 landscape, 4:3 standard, 1:1 square, 3:4 portrait, 9:16 vertical, and adaptive. Seedance 2.0 supports the same framing options. This flexibility allows automated publishing pipelines to output native assets for vertical social platforms, horizontal web players, and widescreen video displays without cropping.

Google Veo 3.1 restricts framing to two options: 16:9 landscape or 9:16 vertical portrait. Applications requiring square 1:1 video for social feeds or 4:3 video for retro formatting must post-process and crop Veo outputs downstream, which discards part of a frame you paid for by the second.

Language support presents another clear operational difference. ByteDance built native multi-lingual text prompt parsing into Seedance 2.5 for 11 languages: Chinese, English, Spanish, Indonesian, Malay, Thai, Arabic, Portuguese, Vietnamese, Japanese, and Korean. Prompts in these languages are evaluated natively without requiring an intermediary translation call.

Google's documentation says English is fully supported for Veo 3.1 and other languages have not been evaluated. If your prompts are not in English, test them on Veo 3.1 before you commit, or pick Seedance 2.5, which lists native support for 11 languages. Furthermore, Google enforces regional content limitations: in the European Union (EU), United Kingdom (UK), Switzerland, and Middle East and North Africa (MENA), generating depictions of people is strictly restricted to adults using the allow_adult flag.

• Seedance 2.5 aspect ratios: 21:9, 16:9, 4:3, 1:1, 3:4, 9:16, and adaptive framing.
• Google Veo 3.1 aspect ratios: 16:9 landscape and 9:16 portrait only.
• Seedance 2.5 languages: native support for 11 global languages including Chinese, Spanish, Arabic, and Japanese.
• Google Veo 3.1 languages: English is evaluated; other languages remain officially unevaluated.
• Regional policy: Veo enforces an adult-only restriction on people generation across the EU, UK, Switzerland, and MENA.

Developer Access and Pipeline Considerations

Onboarding friction and commercial account prerequisites differ between BytePlus and Google. To enable Seedance 2.5 on BytePlus ModelArk, BytePlus recommends maintaining an active account balance above 30 United States Dollars (USD), purchasing an AI Savings Plan of 30 USD or greater, or activating a dedicated Seedance resource pack.

Access to Google Veo 3.1 requires an active billing account on the Gemini API developer platform. All three model variants (veo-3.1-generate-preview, veo-3.1-fast-generate-preview, and veo-3.1-lite-generate-preview) currently carry Preview status in the Gemini API. Google lists the free tier for all three Veo 3.1 variants as not available, so testing starts on the paid tier.

An important architectural detail appears on Google's official video documentation page. Google now explicitly advises developers to use Gemini Omni Flash (gemini-omni-1.1-flash) as the default model for automated video generation and conversational video editing. Google suggests reserving Veo 3.1 for specific use cases such as scene extension, precise last-frame control, or integration with existing legacy pipelines. Gemini Omni Flash bills 5,792 output tokens per second of 720p video, working out to roughly $0.10 per second on standard paid tiers. Developers planning new systems should weigh Google's architectural guidance carefully.

Data retention policies and output provenance also diverge. Google stores generated Veo videos on its servers for exactly 2 days before permanent deletion. A pipeline using Veo has to download each file within those 2 days. Every video generated by Veo carries a SynthID watermark. The BytePlus ModelArk pages cited here do not cover Seedance watermarking or output retention, so ask BytePlus before you rely on either. Teams evaluating alternate platforms can compare additional options in our Veo 3 alternatives breakdown.

• BytePlus onboarding: recommends a minimum 30 USD account balance, savings plan, or resource pack.
• Gemini API onboarding: requires a paid account; Veo 3.1 models operate in Preview status with no free tier.
• Default model shift: Google officially recommends Gemini Omni Flash as the primary default for video tasks.
• Asset retention: Google automatically deletes Veo video outputs after 2 days; Seedance retention is not covered in the BytePlus pages cited here.
• Provenance: Google embeds SynthID watermarks in all Veo outputs; Seedance watermarking is not covered in the BytePlus pages cited here.

Side-by-Side Evaluation Procedure and Cost Per Kept Clip

To evaluate Seedance 2.5 and Google Veo 3.1 fairly before committing budget, run prompts drawn from your real use case and compare cost per kept clip. No independent benchmark on this page ranks visual quality between the two models, so your team must judge output quality directly.

Cost per kept clip equals generation cost divided by the share of clips you keep. Seedance 2.5 costs $0.569 per second at 1080p (about 4.7 times Veo 3.1 Fast at $0.12) and $0.231 at 720p (about 2.3 times Veo Fast at $0.10). Matching Veo Fast on cost per kept clip requires Seedance 2.5 to achieve a keep rate 4.7 times higher at 1080p (only possible if Veo Fast keeps under about 21% of clips) or 2.3 times higher at 720p (only possible if Veo Fast keeps under about 43%).

In an illustrative arithmetic example, an 8-second 1080p clip costs $0.96 on Veo Fast and about $4.55 on Seedance 2.5. Keeping half the clips on each yields $1.92 per kept clip on Veo Fast and about $9.10 on Seedance 2.5. These keep rates are arithmetic assumptions. They are not measured figures.

Apply these test constraints and operational checks during evaluation:

• Run shared tests at 16:9 or 9:16, 720p or 1080p, with native audio and first-and-last-frame input.
• Lock shared clips to 8 seconds because Veo 3.1 requires 8 seconds at 1080p, 4K, and with reference images, while Seedance 2.5 accepts 4 to 30 seconds.
• Test separate features independently: Seedance 2.5 handles up to 50 reference assets (30 images, 10 videos, 10 audio) and 30-second single takes, whereas Veo 3.1 supports up to 3 reference images (Standard and Fast only) and 7-second 720p extensions on clips made by Veo within 2 days.
• Evaluate non-English prompts separately because Seedance 2.5 lists 11 native languages, while Google evaluated Veo 3.1 only in English.
• Download Veo outputs within 2 days before Google deletes them, note the SynthID watermark, and ask BytePlus directly about Seedance retention and watermarking.
• Confirm billing access: all three Veo 3.1 preview variants require a paid tier in the Gemini API, and BytePlus recommends a balance above 30 US dollars (USD) in BytePlus ModelArk.

→ Compare per-token pricing for every AI model

The Verdict

Choose Seedance 2.5 if your application requires long continuous shots, deep multi-character reference control, or non-standard aspect ratios. The ability to generate 30 uninterrupted seconds from a single API call eliminates the complex latency and resolution constraints of video extension chains. Seedance 2.5 also lists native support for 11 languages, against Veo 3.1's English-only evaluation.

Choose Google Veo 3.1 if your pipeline prioritizes low unit economics, native 4K output, or a pipeline already on the Gemini API. At $0.05 per second on Lite and $0.10 per second on Fast, Veo 3.1 Lite has the lowest 720p per-second rate in this comparison, and Fast costs less than half of Seedance 2.5 at 720p. It excels at generating 4 to 8 second B-roll clips, social media clips, and rapid visual variations where per-clip cost dictates product margins.

Choose neither model if you need an entirely free sandbox to evaluate ideas before committing funds, or if you require an integrated conversational pipeline. In that scenario, explore Google's recommended Gemini Omni Flash for conversational multimodal tasks, or try Runway's free plan, which gives 125 one-time credits. Video model prices change without notice, so recheck Google's pricing and BytePlus pricing before you commit.