The verdict
Runway — now on the Gen-4.5 model — is the cinematic-quality benchmark in this category, and with Sora discontinued, the professional shortlist has effectively narrowed to Runway vs Kling. Motion-brush control alone justifies the price for anyone doing client work — being able to direct specific elements rather than re-rolling prompts is the workflow difference that compounds over a real project — and Act-Two performance capture extends that control to character animation driven by real footage. The fair criticism: $12/month is the entry tier and credits burn faster than the marketing implies, so power users land closer to $30-50/month in practice; the free credits are a one-time taste, not a working free plan. If your work involves billable video output and post-production matters, Runway pays for itself. If you're prototyping or making social-first content where "good enough" is the bar, Kling gets you there cheaper — with a real free tier — without sacrificing what matters at that altitude, and Pika covers fast stylized cuts.