HomeBlog › AI video generation cost: Sora vs Veo vs Kling

AI Video Generation Cost: $180 vs $4,800 for the Same 2,000 Clips

Published 2026-08-25 · reference numbers, verify before budgeting

Run 2,000 six-second product clips a month through an open-weight model hosted on rented GPUs and the bill is $180. Run the exact same job through Sora 2 at 4K and it's $4,800. Same clip count, same length, 27x apart. Text and image APIs get compared per token or per image; video is billed per second of footage, and that unit turns out to be the most expensive thing you can generate with an API today.

Six models, one job: 2,000 six-second clips a month

Pulled from the per-second rates we track for the video generation calculator: every tier a developer can call today, priced at a realistic monthly volume — 2,000 clips, 6 seconds each, 12,000 total seconds of footage.

Model$/second6-sec clipMonthly (2,000 clips)
Open-weight hosted (Wan 2.1, CogVideoX)$0.015$0.09$180
Kling 2.0$0.05$0.30$600
Runway Gen-4$0.05$0.30$600
Sora 2 (720p)$0.12$0.72$1,440
Veo 3 (Google)$0.35$2.10$4,200
Sora 2 (4K)$0.40$2.40$4,800
Reference pricing, August 2026. Worked example: 2,000 clips/mo at 6 seconds each. Price your own volume on the AI video generation cost calculator.

Open-weight hosted models are the Flux Schnell of video — over 3x cheaper than the next tier up, Kling and Runway, which land on the identical $0.05/second despite being separate companies. Sora 2 alone spans a 3.3x range depending on resolution, which is a bigger jump than the gap between Kling and Runway, or between the open-weight tier and either of them. Resolution, not vendor, is doing most of the work on this table.

Why per-second pricing hurts more than per-token pricing

A 240M-token LLM month sounds enormous but costs a few hundred dollars because tokens are tiny and cheap. A second of video is neither. Every second is roughly 24-30 rendered frames at whatever resolution you asked for, and the compute to produce each frame doesn't shrink the way a text token does — it scales with pixel count and diffusion steps. That's why Veo 3, an audio-native model that generates synchronized sound alongside the frames, prices closer to $0.35/second than to text-model territory: you're paying for a second of rendered picture and a second of rendered sound in the same call, which is closer to buying a TTS API and a video API bundled together than to a single per-token line item.

It also means volume compounds faster than people expect. Doubling clip length from 6 to 12 seconds doesn't add a fixed cost, it doubles the bill outright, because the calculator has no fixed per-request fee to amortize against — the seconds are the entire price. A campaign that goes from 2,000 to 5,000 clips a month on Sora 2 4K doesn't add $2,880, it adds $12,000. There's no bulk discount tier hiding in most video APIs the way there is with batch processing on LLM calls.

The decision rule

For storyboard drafts, internal previews, or anything where a human is going to reject nine takes before picking one, generate on the open-weight tier — at $180 for 2,000 clips, iterating ten times over costs less than a single month of Veo 3 at production volume. Reserve Sora 2 or Veo 3 for the clip that actually ships: the one hero asset, the ad creative, the thing a customer sees. Running the cheap tier for volume and the expensive tier for the handful that survive review is the same split that works for image generation, and it works here for the same reason — the premium tier's cost scales with every second you generate, so the fewer seconds you send it, the smaller the bill. Price your own clip count and length on the AI video generation cost calculator, check what the synced-audio tiers save you versus a separate text-to-speech call, and if video is one line in a bigger product bill, total the whole stack on the AI app cost estimator.

Methodology: prices from our tracked video-generation rate table as of August 2026 (last verified 2026-08-15), matching each provider's published or typical hosted per-second rate at the resolution tier noted. Open-weight rates reflect hosted GPU-time-billed platforms, not a fixed provider price — confirm current rates before budgeting a production run.