The 4-step method
1. Frame the idea before you generate
A short script, even a minimal one (hook, development, payoff), gets far better results than a prompt improvised on the spot. It's the brief, not the prompt, that decides whether the video will actually have a rhythm.
2. Generate the clip or clips
Starting from a reference image rather than text alone generally gives you better control over the result. Plan on generating several short variants rather than a single long sequence.
3. Edit, subtitle, and pace it
This is the step most often skipped — and the most decisive one: cropping to the right format, automatic subtitles, cuts on the right beat. Editing software with automatic subtitling and 4K export is what makes the difference here between an amateur clip and a publishable one.
4. Export in the right format
Check the aspect ratio, the maximum duration, and whether a watermark is present before you publish — an unoptimized export often hurts a video's reach from the moment it goes live.
Formats and platforms
| Platform | Recommended format | Watch out for |
|---|---|---|
| TikTok | 9:16, full screen | Hook within the first second |
| Instagram Reels | 9:16 | Subtitles readable with sound off |
| YouTube Shorts | 9:16, <60s | Title visible from the thumbnail |
| 1:1 or 16:9 | Tone less “generated,” more factual |
What AI video still doesn't do well
- long, lip-synced dialogue (a dedicated avatar tool is a better fit here — see the AI avatar guide);
- keeping the same character strictly consistent across several successive shots;
- scenes with a lot of on-screen readable text;
- complex camera movements sustained over a long duration.
The AI video tools landscape
The field moves fast: several models are competing on motion quality and frame-to-frame consistency, with frequent updates that regularly reshuffle the comparisons. Rather than chasing “the” best tool based on whatever's trending, it's better to test two or three models on your own brief and keep whichever holds up on your actual use case.
Where ToolAcces fits into this landscape
ToolAcces gives you access to Kling AI for clip generation (text- or image-to-video, via Magnific) and to CapCut Pro for editing, automatic subtitling and watermark-free 4K export — the two key steps in the method above, bundled into a single subscription instead of two separate accounts to manage.
Access details and quotas are on the Pricing page.
Frequently asked questions
Most consumer models generate short clips, from a few seconds up to around fifteen seconds per generation. A longer video is built by stitching and editing several clips together, not by generating one long sequence in a single pass.
Almost always yes, even if it's just light editing: cropping to the right format, subtitles, and cutting to a decent pace. A raw generated clip posted as-is is instantly recognizable as unfinished.
There's no universal winner: each has its own strengths (motion smoothness, character consistency, generation speed) and improves at a different pace month to month. The right approach is to test on your own use case rather than choose by reputation alone.
Yes, and it's actually the most reliable way to keep control over the result: you start from an image (generated or real) and animate it, rather than leaving everything to a text prompt.
Go further
Articles on the same topic
- What's the best AI video generator in 2026?
Kling AI, Runway, Veo, Sora, PixVerse: a criteria-by-criteria comparison (motion realism, duration, built-in audio, free or paid) to choose based on your actual use case.
- How to make an AI video, from script to export?
The complete step-by-step guide: framing the idea, writing a short script, generating clips, editing, subtitling and exporting in the right format for TikTok, Reels or YouTube Shorts.
- How to turn an image into a video with AI?
The step-by-step image-to-video method: choosing the right starting image, describing motion rather than the scene, and the mistakes that break the animation.
- How long can an AI-generated video actually be?
What models really allow in a single generation, and how to build a longer video by chaining several clips together in editing.
- Which video format should you choose for TikTok, Reels and YouTube Shorts?
Ratio, duration, safe zones, subtitle placement: the export settings that really change how a short video performs on each platform.
- Why do my AI-generated videos lack smoothness?
The technical cause behind choppy motion and drifting movement, and the concrete settings to try before switching models.
- How to edit and automatically subtitle an AI-generated video?
The complete guide to the most decisive and most overlooked step: assembling clips, pacing the edit, generating readable subtitles for sound-off viewing, and exporting watermark-free.
- Free or paid AI video generator: which one should you start with?
What free plans actually limit (watermark, duration, quota), and at what point a subscription becomes more cost-effective than stacking free accounts.
Other guides
- Cut the cost of your AI subscriptions without paying full price
How mutualized access to ChatGPT Plus, CapCut Pro and Canva Pro works, and why it's different from a credited API engine.
- AI image generation: the complete guide
How AI image generation actually works, which use cases to target, and how to choose between upscaling, prompt-based generation and editing.
- AI avatar: creating your digital twin
What an AI avatar can actually do today (training, LinkedIn, sales), its limits, and how to create one without filming anything.
- AI voice: text-to-speech and voice cloning, the complete guide
How AI-generated voiceover works, how to clone your own voice, and where ToolAcces fits in.
- AI tool stack for freelancers and small agencies
The AI tools that actually matter for content creation in 2026, how to budget a stack, and where to mutualize without losing quality.
See exactly what ToolAcces includes — credited API engines and mutualized access, in a single subscription starting at €39.99/month, no commitment. View pricing.
How AI video generation actually works
An AI video model generates a sequence of images that stay consistent over time, starting from text, a starting image, or both combined. Unlike a still image, the model also has to handle motion, keep an object or character consistent from one frame to the next, and get basic physics right (gravity, fluids, fabric) — which is why AI video took longer to become usable than AI image generation.