Calculator · Video generation
AI video generation cost calculator.Cost per second of video output — all major providers.
Video generation cost calculator
AI video tools charge by the second of output. Enter your monthly volume and compare costs across providers.
Seconds of video per month120seconds
5s (one clip)3,000s (~50 min)
How AI video pricing works
AI video generators charge by the second of output video. Resolution multiplies the cost by 2–5×. Most tools sell credit packs rather than subscriptions.
$0.028
Cheapest per second (standard)
Kling 1.6 Standard at standard quality. At 120 seconds/month (12 clips at 10 seconds each), that is $3.36/month.
5×
4K vs standard price gap
Moving from standard to 4K resolution typically increases cost by 3–5× per second. Only generate at the resolution your distribution platform actually requires.
Avatar
HeyGen is different
HeyGen is primarily for avatar-based video (talking head) rather than generative video. The use case is different from Runway or Kling. Compare within the right category.
| Provider | Standard /sec | HD /sec | 4K /sec | Type |
|---|---|---|---|---|
| Runway Gen-4 | $0.05 | $0.10 | $0.25 | Generative |
| Kling 1.6 Standard | $0.028 | $0.042 | $0.056 | Generative |
| Kling 1.6 Pro | $0.07 | $0.14 | $0.25 | Generative |
| Sora (OpenAI) | $0.08 | $0.16 | $0.40 | Generative |
| HeyGen Avatar | $0.067 | $0.067 | $0.134 | Avatar |
Frequently asked questions
Which AI video generator is cheapest?
Kling 1.6 Standard at $0.028/second at standard quality is currently the cheapest major provider. At 120 seconds/month that is $3.36/month vs $12/month on Runway HD. Quality varies by use case.
HeyGen vs Runway — what is the difference?
HeyGen specialises in avatar-based video — AI presenters, talking head videos, and personalised video at scale. Runway and Kling are generative video tools — text or image to video. They serve different use cases and should not be directly compared on price alone.
Is Sora worth it?
Sora at $0.08/second standard is not the cheapest option. It produces high quality video but Kling and Runway offer comparable quality at lower cost for most use cases. Sora is worth testing if you specifically need its output characteristics.
Prices updated daily · Last fetch: Mar 27, 2026
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