AI Video Generation Cost: Runway vs Kling vs Sora vs Pika vs Luma (2026)
Updated October 2026 · 5 min read
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AI video generation has matured rapidly. What cost $1 per second a year ago now costs $0.017 to $0.10. But pricing structures vary — per second, per clip, per subscription — making direct comparison difficult. This guide breaks it all down.
Cost Per Second: 2026 Comparison
| Model | Per Second | Per 5s Clip | Max Duration | API |
|---|---|---|---|---|
| Luma Dream Machine | $0.017 | $0.085 | ~30s | Yes |
| Runway Gen-3 Turbo | $0.025 | $0.125 | 10s | Yes |
| Runway Gen-3 Alpha 720p | $0.05 | $0.25 | 10s | Yes |
| Pika 2.0 Standard | $0.080 | $0.40 | ~15s | Yes |
| Kling 1.6 Standard (min 5s) | $0.14 | $0.70 | ~60s | Yes |
| Kling 1.6 Pro (min 5s) | $0.28 | $1.40 | ~60s | Yes |
| Sora Plus ($20/mo) | ~$0.40/clip | ~$0.40 | 20s | No |
Luma Dream Machine: Cheapest API at $0.017/Second
Luma is the most affordable AI video API in 2026. A 10-second clip costs $0.17. It also offers 30 free video generations for new accounts. Trade-off: maximum ~30 second clips and slightly less cinematic quality than Runway Alpha.
Runway Gen-3: Best Quality-to-Price Ratio
Runway Gen-3 Turbo at $0.025/second is the sweet spot for production workflows. Faster than Alpha at half the cost. Alpha 1080p ($0.10/s) is for hero content — product launches, advertising — where resolution matters.
Kling 1.6: Long Clips, Higher Cost
Kling's minimum 5-second billing inflates short-clip costs. However, with 60-second clip support, Kling is the only model suited to long narrative shots. One Kling Pro clip at 60s ($16.80) replaces six Runway clips stitched together at similar total cost.
Sora: No API, Subscription Only
Sora is only available through ChatGPT subscriptions with no public API. At ~$0.40 per clip on the Plus plan it is comparable in price to Runway Alpha, but the lack of automation makes it unsuitable for production pipelines.
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