Free AI video generator tools can create clips in minutes. That is useful. It is also easy to overestimate what they can do. Tools like Runway, Kling AI, Pika, and similar platforms can generate visuals, animate still images, and build short video scenes without cameras, crews, or editing suites. They are fast. Many offer free plans. They are widely used for testing ideas. The real question is sharper: can free AI tools replace a professional video agency for serious brand wo