Veo-3.1 vs Seedance-1.5: Is $2.68 Worth it?
April 2026 Update: Seedance 2.0 has been released and now outperforms Veo 3.1 in our benchmark (4.70 vs 4.57) at the same $0.70 price point. It holds Elo 1,269 on Artificial Analysis and 10/10 character consistency. See our full Seedance 2.0 review.
TL;DR
Veo-3.1[1] is technically superior to Seedance 1.5[2], specifically in motion fluidity and audio synchronization. However, Seedance 2.0 ($0.70) now beats both — and costs 78% less than Veo. If you're still on Seedance 1.5, upgrade to 2.0 for $0.18 more per video and get a 24% score improvement.
Recommended Benchmarks
- Seedance 2.0 Review: #1 AI Video Generator (2026)Seedance 2.0 tops our 10-model benchmark (4.70/5) with Elo 1,269 on Artificial Analysis, 10/10 consistency, and native audio — $0.70/video.
- Best AI Video Generator 2026: 10 Models RankedSeedance 2.0 takes #1 (4.70/5) with Elo 1,269 on Artificial Analysis. Full 6-prompt benchmark of 10 AI video models.
- AI Video Generator Cost vs Quality (2026)Seedance 2.0 ($0.70) tops quality at 78% less than Veo 3.1 ($3.20). Full cost-quality analysis of 10 AI video models.
The Numbers
The 0.3-point gap between these two models comes down to two specific dimensions. On everything else, they are indistinguishable.
| # | Model | Avg Score | Cost/Image | Tier |
|---|---|---|---|---|
| 3 | Veo-3.1 | 4.57 | $3.20 | Premium |
| 9 | Seedance-1.5 | 3.78 | $0.52 | Budget |
| Dimension | Veo-3.1 | Seedance-1.5 | Winner |
|---|---|---|---|
| Motion & Physics | 5 | 4 | Veo-3.1 |
| Subject Consistency | 5 | 5 | Tie |
| Instruction Adherence | 2 | 2 | Tie |
| Audio Sync | 5 | 4 | Veo-3.1 |
| Resolution & Clarity | 5 | 5 | Tie |
| Lighting & Color | 5 | 5 | Tie |
Where Veo-3.1 Actually Wins
Motion & Physics (5 vs 4)
Veo-3.1's eagle flight is smoother. The wing flaps on Seedance-1.5 are "slightly stiff" — technically correct, but lacking the fluid dynamics of the top tier. For footage where the movement itself is the centrepiece, this matters.
Audio Sync (5 vs 4)
Veo-3.1 generates synchronised wind sounds, eagle cries, and wing flap audio that aligns precisely with the visual action. Seedance-1.5 produces appropriate ambient sound, but the sync precision is one level below.
Where They're Identical
On the core pillars of visual quality, you are paying a 6x premium for zero gain.
- Subject Consistency (5/5 both): Neither model generates morphing artifacts or identity drift. The eagle looks the same throughout.
- Resolution & Clarity (5/5 both): Both are razor-sharp. Feather texture and environmental detail are top-notch.
- Lighting & Color (5/5 both): Both achieve cinematic, consistent golden-hour lighting with no flickering.
- Instruction Adherence (2/5 both): Both ignored the "above the clouds" instruction and generated a canyon—a problem shared across all models tested.
Video Examples: Motion & Physics
See the difference in motion quality between the two models. Both videos show the same "majestic eagle soaring through a canyon" prompt.
Veo-3.1: Motion & Physics (5/5)
Veo 3.1 OutputVideo Generation
“A majestic eagle flying in the blue sky above the clouds, high resolution, cinematic lighting”
VLM Judge Reasoning
The eagle's flight animation is smooth and natural, with realistic wing flaps. The camera movement through the canyon is also very stable and fluid.
Seedance-1.5: Motion & Physics (4/5)
Seedance 1.5 Pro OutputVideo Generation
“A majestic eagle flying in the blue sky above the clouds, high resolution, cinematic lighting”
VLM Judge Reasoning
The eagle's flight motion is generally smooth and realistic, and the camera tracking is dynamic. The wing flaps are slightly stiff, but the overall physics of the glide feel natural.
The Volume Maths
At 100 videos per month, the price difference isn't just coffee money—it's a significant operational cost.
Veo-3.1
$320
per month
Seedance-1.5
$52
per month
The difference of $268/month ($3,216/year) buys you 0.3 points of quality, primarily in motion fluidity and audio precision. Pricing sourced from official API documentation[4].
Strengths and Limitations
Veo-3.1
Strengths
- +State-of-the-art motion physics
- +Perfect audio-to-visual synchronization
- +Cinema-grade lighting and resolution
Limitations
- −Most expensive model at $3.20/video
- −Same instruction adherence failures as cheaper models
Seedance-1.5
Strengths
- +6x cheaper than Veo-3.1 for 93% of the quality
- +Perfect subject consistency and resolution
- +Best quality-per-dollar in the mid-tier
Limitations
- −Slightly stiff wing animation
- −Audio sync is good, not elite
The Verdict
When to Choose Veo-3.1
Showcase/hero content where motion quality will be scrutinised closely (e.g., brand launch videos).
When to Choose Seedance-1.5
For 95% of use cases — social content, ad variants, or any project where you replace the audio in post.
Sources & References
All external sources were verified as of April 2026. Ratings and metrics reflect the most recent data available at time of review.
- Google DeepMind - Veo Video Generation(deepmind.google)
- Seedance AI - Seedance 1.5 & 2.0 (ByteDance)(seedance.ai)
- Artificial Analysis - AI Video Generation Leaderboard(artificialanalysis.ai)
- Google AI Studio - Veo 3.1 API Pricing(aistudio.google.com)
- fal.ai - Seedance Model Hosting & Pricing(fal.ai)
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- Best AI Image Generator 2026: 18 Models RankedGPT Image 1.5 leads, but FLUX.2 Pro at $0.035 delivers 97.6% of the quality at 26% of the price. Full 18-model rankings.
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Related Vibedex Benchmarks
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Methodology: Rankings and scores in this article are based on VibeDex's independent benchmarks. Models are evaluated by AI-powered judges across multiple quality dimensions with scores weighted by prompt intent. See our full methodology
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