Best AI video generator for TikTok and Reels
For TikTok, generate short shots in Google Flow (50 free credits a day, about 5 Veo 3.1 Lite clips), then assemble a 9:16 video with captions in CapCut. Use Kling to animate a photo, PixVerse for effects-style clips, and Luma Ray3.2 (lists 9:16) for paid ad variants. Label realistic AI content, as TikTok's rules ask.
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By signing up you agree we email you WhichClip tips. Unsubscribe anytime. Questions: borderlessdesk.hello@gmail.comBest AI for TikTok and Reels, by job (checked 2026-10-26)
| TikTok job | Free pick | Paid pick | 9:16 / vertical (per vendor) |
|---|---|---|---|
| Eye-catching clips from a prompt | Google Flow (50 credits a day) | Google AI Pro (+1,000 Flow credits a month) | Aspect options: Not published in the Flow Help pages we fetched. Check the setting in Flow |
| Animate a product photo or selfie | Kling free (watermarked) | Kling membership | Not published in the Kling pages we fetched |
| Fast social effects, multi-shot | PixVerse free (60 + 30 daily credits, 540p, watermarked) | PixVerse Standard ($8/mo yearly) | V6 page: aspect ratio control, “vertical video concepts”, 15-second 1080p |
| Script → finished video with captions | CapCut (7-day free trial of the AI video generator) | CapCut paid plan | You set the aspect ratio before generating |
| Brand-consistent ad variants | — | Luma Plus ($30/mo) | Ray3.2 lists 9:16, 3:4, 1:1, 4:3, 16:9, 21:9 |
| $0 with no vendor watermark | Wan 2.2 on your own GPU | — | Your choice of size. Needs about 24GB VRAM for 720p |
Free credits vs a 15-second TikTok
| Tool | Free allowance | What a short clip costs | About how much you get free |
|---|---|---|---|
| Google Flow | 50 credits a day | Veo 3.1 Lite: 10 credits per 4–8s generation. Gemini Omni Flash (720p): 7 credits for 4s, 12 for 8s | About 5 Lite clips a day, enough for one 15–30s TikTok built from 2–4 shots |
| PixVerse | 60 initial + 30 daily credits | Varies by model. See the PixVerse page | Daily top-ups, 540p on free |
| Kling | Daily login credits (amount Not published) | Shown in the app | Not published |
| Runway | 125 credits, one time | Gen-4.5: 12 credits per second | About 10 seconds of Gen-4.5, watermarked |
| Luma | “Free to try” (amount Not published) | Ray3.2 5s: 20 credits (draft) to 400 (1080p) | Not published |
Make a TikTok with AI in 6 steps
- Write 3 beats: a hook in the first 2 seconds, one payoff, one call to action. Keep each shot to one idea.
- Generate 2–4 short shots using the shot formula. Ask for vertical framing and keep the subject centered so 9:16 crops don't cut heads off.
- Draft cheap, finish once. Use Flow's Lite model or Luma's draft resolution to test, then re-render only the keeper. See stretch free credits.
- Assemble in a 9:16 project (1080×1920) in CapCut. Add captions, a voiceover or a trending sound, and a text hook on frame one.
- Don't put on-screen text in the prompt. AI text often comes out garbled. Add it in the editor.
- Label it. TikTok's Community Guidelines ask creators to label AI-generated or significantly edited content that shows realistic-looking scenes or people. Unlabeled content may be removed, restricted or labeled.
FAQ
What is the best free AI video generator for TikTok?
Google Flow for generating clips (50 free credits a day, about 5 Veo 3.1 Lite clips), then CapCut to assemble a 9:16 video with captions. PixVerse is a good second free source for effects-style clips, but free exports are watermarked and capped at 540p.
What size should an AI TikTok be?
Vertical 9:16, which is 1080×1920 at 1080p. Generate vertically when the tool offers it, or keep the subject centered so a 16:9 clip can be cropped.
Do I have to label AI videos on TikTok?
TikTok's Community Guidelines ask you to label AI-generated or significantly edited content that shows realistic-looking scenes or people. Unlabeled content may be removed, restricted or labeled by TikTok.
Which AI tools support 9:16 directly?
Luma's Ray3.2 FAQ lists 9:16 among its aspect ratios. PixVerse V6 and CapCut let you set the aspect ratio before generating. Flow and Kling didn't state aspect options on the pages we fetched (2026-10-26).
Can I post watermarked AI clips on TikTok?
Watermarked clips from Kling, PixVerse or Runway free plans look less polished. Don't crop out a vendor's watermark, which usually breaks its terms. Use a paid plan, Flow with the visible toggle off, or Wan locally instead.
Sources
Vendor pages fetched 2026-10-26 (Dubai). Prices and credits change. Check the vendor page before you pay.
- Manage your Google Flow credits — Google Flow Help
- Get started with Flow — Google Flow Help (watermark FAQ)
- CapCut AI video generator
- KlingAI Daily Free Credits (official FAQ page)
- Kling AI Credits Policy
- PixVerse V6 model page
- PixVerse Pricing and Subscription Plans
- Ray3.2 model page and FAQ — Luma
- Runway pricing
- Integrity and Authenticity (Edited Media and AIGC) — TikTok Community Guidelines
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