Best AI Video Generators in 2026: 8 Tools Compared (Sora 2, Veo 3, Runway & More)

An honest comparison of 8 AI video generators in 2026 — Sora 2, Veo 3, Runway Gen-3, Pika, Kling, Luma Dream Machine, Hailuo, and Hunyuan Video. Quality, pricing, and best-for verdicts.