HEAD TO HEAD
Gen-4.5 vs Kling 3.0: which is worth your budget?
Gen-4.5 — Runway
Kling 3.0 — Kuaishou
| Gen-4.5 | Kling 3.0 | |
|---|---|---|
| $ / second (base) | $0.25 | $0.10 |
| 10-second clip | $2.50 | $1.00 |
| 1 minute of output | $15.00 | $6.00 |
| Native audio | — | — |
| Max clip length | 10s | 120s |
Rates shown at each model's base tier, verified July 2026 from official vendor pricing pages and documentation. Vendors change prices without notice — see methodology.
The verdict
Runway sells a workflow, Kling sells generation minutes. Gen-4.5 at $0.25/s leads quality benchmarks and comes wrapped in the best editing toolset in the market; Kling wins raw price ($0.04–0.10/s) and clip length. The twist: Runway's paid plans include Kling 3.0 Pro access — so if you're torn, a Runway subscription lets you use both.
Whichever you pick, apply a retake multiplier before budgeting: the model that gets your specific shot right in fewer attempts is often the cheaper one in practice, regardless of sticker price. Full tier breakdowns: Gen-4.5 pricing and Kling 3.0 pricing.
Run your own numbers. The cost calculator applies your clip length, resolution and a realistic retake buffer across every model at once.