AI Video Generation Cost Calculator
Prices vary by resolution and whether audio is included — this shows one representative tier per model. Check each provider's own pricing page for other options before budgeting a real project.
Free AI video generation cost calculator for Veo 3.1, Kling 3.0, and Runway Gen-4.5 — pick a model tier, enter your clip length and count, and see the total cost with the exact per-second rate and official source shown right in the result (not buried in a blog post).
How it works
- Pick a model and tier (Veo 3.1, Kling 3.0, or Runway Gen-4.5)
- Enter your clip length in seconds and how many clips you need
- See the total cost, with the per-second rate used and its official source shown directly in the result
Frequently asked questions
Is Sora 2's API still available?
No. Sora 2 / Sora 2 Pro API access was discontinued on September 24, 2026 (the web and mobile apps were closed earlier, in April 2026), so they have been removed from the selectable tiers. Their last listed rates were $0.10/s (Standard) and $0.70/s (Pro).
Why does the per-second price vary so much between tools?
Resolution and audio generation both change the price significantly — a 4K clip or one with native audio can cost 3-7x more per second than a lower-resolution, silent one on the same platform. This calculator uses one representative tier per model; check the provider's own pricing page for other resolution/audio combinations.
Why show the exact per-second rate in the result?
Several other AI video cost calculators we checked don't display the actual dollar rate or its source anywhere on the page, which makes the output hard to trust or double-check. Ours shows the rate and where it came from every time.
Which is cheapest?
At the tiers shown here, Veo 3.1 Lite ($0.08/s) is the cheapest listed, and Veo 3.1 Standard ($0.40/s) is the most expensive — but a 'cheap' silent 720p clip and a 'premium' 4K clip with audio aren't really comparable outputs, so price per second alone shouldn't be the only factor.
Related tools
From the blog
Update history
- 2026-10-03 Sora 2 / Sora 2 Pro removed from the selectable tiers because their API was discontinued on Sept 24, 2026; cheapest/most-expensive FAQ updated; Veo 3.1 per-second rates re-checked against Google's pricing page.
- 2026-09-23 Launched: AI video generation cost calculator for Sora 2, Veo 3.1, Kling 3.0, and Runway Gen-4.5, using official per-second pricing (Google Gemini API docs, Runway pricing page, Kling's official 3.0 model guide) with the source shown in the result. Flags Sora 2's Sept 24, 2026 API sunset.