AI 비디오 가격이 엉망이다. 실제로 계산하는 방법.
Source: Dev.to
아무도 월 30개의 AI 비디오가 실제로 얼마가 드는지 알려주지 않는다
Runway의 가격 페이지를 열면 “125 credits included.” 라고 적혀 있다.
Kling은 “monthly tokens.” 라고 표시한다.
Luma는 “generations per day.” 라고 적힌다.
그들은 모두 “credit”이 여러분의 특정 워크플로우에서 달러로 얼마에 해당하는지 정의하지 않으므로, 여러분은 추측하게 된다. 프로젝트를 시작하고 나면 청구서가 계획한 것보다 세 배가 될 수 있다.
나는 이 문제를 여러 번 겪어서 추측을 멈추게 해줄 계산기를 만들었다: AI Video Studio Cost Planner.
아래는 그 뒤에 있는 수학이다.
각 플랫폼이 실제로 청구하는 방식
| Platform | Pricing model | Typical rate | Cost per second (example) |
|---|---|---|---|
| Runway Gen‑3 Alpha | Credits per second of video generated | ~10 credits/second | $0.01 per credit → $0.10/second (10‑second clip = $1) |
| Kling AI (Pro) | Tokens per second (complex motion prompts consume more) | ~15 credits/second | $0.015 per credit → $0.225/second |
| Luma Dream Machine | Flat credit per generation (within limits) | Fixed per generation | Varies by plan, but predictable |
Note: Adding 4K upscaling on Runway doubles the rate—something the pricing page doesn’t highlight.
실제 워크플로우에 대한 수식
Assume you’re producing 30 short videos per month, each 10 seconds long, at standard quality.
| Platform | Credits Used (approx.) | Monthly Cost |
|---|---|---|
| Runway Gen‑3 | 3,000 | ~$30 |
| Kling Pro | 4,500 | ~$67 |
| Luma | 3,600 | ~$43 |
Switching to 4K upscaling doubles all numbers. At 100 videos/month, you’re looking at $100–$300+ depending on platform and quality. Unlimited subscription plans start to make sense around that volume.
GPU‑equivalent cost
One metric added to the calculator is the GPU equivalent cost—what it would cost to run the same inference on a rented H100 (via Lambda, RunPod, etc.) instead of using the SaaS platform.
- Typical result: about 45 % of the SaaS price, meaning the SaaS service carries roughly a 2× markup for the convenience of not managing infrastructure.
- For hobbyists and small studios, the markup is often worth it.
- For high‑volume production (1,000+ videos/month), self‑hosted inference can become financially sensible.
“rates verified” 문제
AI video pricing changes constantly. Runway updated its credit pricing twice in the past year, and Kling frequently adjusts its token system. To keep the calculator reliable, I added a “Rates Verified: [Month Year]” badge per model and update the underlying numbers whenever platforms change their pricing. This lets you know whether an estimate is based on current data or is outdated.
계산기
Free, no login, opens instantly: bytecalculators.com/ai-video-cost-calculator
Set your model, monthly video count, duration, and quality tier. The tool outputs:
- Monthly cost
- Total credits used
- GPU‑equivalent cost
If the rates are wrong or a model is missing, leave a comment on the page and I’ll update it when pricing changes.