Detailed Answer
Finding a completely free AI video tool is difficult, but many tools offer limited free usage for trial purposes. Pika provides free starter credits after signup and is ideal for generating quick short videos. Luma Dream Machine allows creating short videos with cinematic camera movements on its free plan. Kling AI provides daily refreshing free credits and offers video generation up to 2 minutes long. Runway offers limited free trial credits for testing professional-quality results. Hailuoai and PixVerse are also strong alternatives worth exploring with their generous free plans. When using these free plans, key points to keep in mind include: most free plans produce lower resolution output, some add watermarks, daily generation counts are limited, and commercial usage rights are typically restricted or absent. To make efficient use of your free credits, carefully plan your prompt beforehand, prepare a reference image if possible, and work thoughtfully rather than through trial and error. For professional projects and commercial use, we strongly recommend upgrading to a paid plan; Pika and Kling AI offer quite affordable starter plans. As a first step, try the free plans of multiple tools to choose the one that best fits your needs.