Start with the clip job, not the tool. A pre-webinar invite needs a clear hook and fast captions, while a post-webinar recap needs a presenter who can carry a 30–60 second explanation without looking stiff.
Choose HeyGen if the avatar is the visible face of the campaign. It is the strongest fit for polished spokesperson clips and localised follow-ups, but the credit model matters: Avatar V at 48 credits per minute means a 30-second render uses 24 credits.
Use Captions when the bottleneck is repurposing existing webinar footage. Its Free plan includes basic editing, resizing and captions in 100+ languages, but AI usage needs paid credits and its public pricing page says listed prices and features reflect iOS plans only.
Use Creatify for webinar points that need to become paid social hooks. AI Video Ads, Avatar Videos and AI Shorts cost 5 credits per 15 seconds, rounded up, so a 30-second output is 10 credits before revisions or agent-style credit variation.
Use Vidnoz as the low-cost testing sandbox before you commit to a higher-end workflow. Standard generation costs 0.5 credits per second, so a 30-second standard clip uses 15 credits, but unused regular credits and add-on credits do not roll over.
Track cost per usable clip, not just the monthly plan price. Failed renders, script fixes, caption changes and aspect-ratio tweaks are where webinar clip workflows get expensive.