A creator posted a 6-second clip of herself launching off an Olympic diving board, twisting through the air in ways no human body allows. It was not real footage. It was a selfie plus a free in-app effect, and more than 568,000 people have now made their own version. That is the speed of viral AI video prompts right now: a still photo goes in, a million-view clip comes out, and the tools cost nothing. This morning I published 10 viral AI video prompts everyone is using . Readers asked for more, so I went back through TikTok, Reels, Shorts and Facebook tonight for 10 completely fresh concepts with real traction this week. Nothing repeats the morning list. For each: why it is blowing up, a copy-paste prompt, the best free tool that works today, and a short guide. Last verified October 2026 . The 10 trends at a glance # Trend Best free tool (Oct 2026) Effort 1 AI Fancy Diving TikTok in-app effect (free) Easy 2 Stadium Fan-Cam Google Flow (50 credits/day) Medium 3 Venom W...