AI Video Tools: What's Actually Worth Using
The AI video space has expanded fast, but the tools vary wildly in what they're actually good for. Here's an honest breakdown by use case.
For generating video from scratch
Runway Gen-3 and Kling are the current benchmarks for text-to-video and image-to-video quality. Runway has stronger motion control and a more mature editing suite around it. Kling produces impressive cinematic shots but has less ecosystem support. Sora (OpenAI) generates striking results but remains limited in access and clip length.
None of these are reliable for anything requiring consistent characters across multiple shots — that's still the core unsolved problem.
For avatar and presenter videos
HeyGen is the go-to for marketers and solo creators who need a polished talking-head video without camera setup. The custom avatar quality has improved significantly, and the lip-sync is among the best available. It works well for product demos, onboarding videos, and localized content.
Synthesia targets enterprise more directly — it has stronger team collaboration features and supports 130+ languages, making it practical for global training content. The avatars look slightly more corporate, which fits some use cases and not others.
For editing existing footage
Descript remains the strongest option for podcast and interview-style video. Editing by transcript is genuinely faster than timeline editing for talking-head content. Captions is better suited to short-form social video — it handles auto-captions, B-roll suggestions, and eye contact correction for vertical video.
Adobe Premiere with its AI features (via Firefly) is worth considering if you're already in the Adobe ecosystem, though it's not a pure AI-first tool.
Who these tools don't suit
If you're producing narrative content, documentary work, or anything where visual consistency and emotional nuance matter, current AI video tools will frustrate more than they help. They're also a poor fit if you need 4K output at scale without significant cost.
Bottom line
The most practical stack right now: a generation tool (Runway or Kling) for creative assets, HeyGen for presenter content, and Descript or Captions for editing. Mixing tools by task beats trying to find one platform that does everything adequately.