How to Make AI Videos: A Beginner's Guide + The 5 Best AI Tools for 2026

To make an AI video, decide what kind of video you need, choose a tool built for it, write a script or a shot-by-shot prompt, generate and refine the clips, then edit, caption and export for each platform. In 2026, Google Flow (Veo 3.1 and Gemini Omni Flash), Runway and Kling lead for generated footage, HeyGen leads for avatar presenters, and CapCut is the best free editor to pull everything together.

Quick picks

• Best for cinematic generated clips: Google Flow with Veo 3.1 and Gemini Omni Flash
• Best for creative control and editing tools: Runway
• Best for longer multi-shot clips with audio: Kling
• Best for business, sales and training videos: HeyGen
• Best free all-round editor: CapCut

Tool	Best for	Clip length per generation	Pricing model
Google Flow (Veo 3.1, Gemini Omni Flash)	Cinematic shots, reference-driven scenes	4 to 8 seconds (Veo 3.1), extendable	Flow credits through Google AI plans
Runway (Gen-4.5)	Creative shots, video-to-video editing	2 to 10 seconds	Credit-based subscriptions
Kling (3.0, 4.0 rolling out)	Multi-shot stories, native audio	Up to 15 seconds on 3.0	Credit-based subscriptions
HeyGen	Avatar presenters, translation	Talking videos up to 30 minutes	Free plan plus paid tiers
CapCut	Editing, captions, quick AI clips	Depends on the built-in model	Mostly free; Pro for advanced features

Video is the undisputed king of content, but for most teams it has been too expensive and slow to produce at the volume social channels demand. AI video tools change the economics of drafts, variants and localization. When you need finished campaign video with a director's eye, our AI video production services cover concept, generation, editing and sound.

Part 1: the 4-step process to create your first AI video

Every platform has its own interface, but the core workflow is consistent.

Step 1: define your goal and choose your tool

The type of video decides the tool.

• For presentations, training or sales outreach: an AI avatar tool such as HeyGen or Synthesia.
• For cinematic ads, product reveals or creative shorts: a generative text-to-video or image-to-video model such as Veo 3.1, Runway or Kling.
• For social clips from existing footage: an editor with AI features, such as CapCut.

Step 2: write your script or prompt

This is the most important step, because you are now the director. For avatar tools, write a clear script for the presenter. For generative video, write a prompt that describes one shot at a time: subject, action, setting, camera movement, lighting and sound.

• Script example (avatar): "Welcome to our quarterly update. This month, we launched two new products and opened our Pune office."
• Prompt example (generative): "A cinematic drone shot flying over a futuristic city at sunset, neon lights reflecting on wet streets, slow forward push, ambient city hum, 16:9."

Generated clips are short, so plan in shots rather than full scenes. A 30-second ad is usually four to eight generated shots joined in an edit. Starting from a strong still helps a lot. Our guide on how to make AI images covers the image tools that make good first frames.

Step 3: generate, refine and edit

Generate two to four takes of each shot and keep the best. Most tools let you fix a start or end frame, add reference images for products and characters, or extend a clip. Then assemble the shots in an editor, add your logo, music, voiceover and captions, and trim for pace. This is where the video starts to feel like your brand.

Step 4: export, label and publish

Export in the right format for each channel: 16:9 for YouTube, 9:16 for Reels, Shorts and TikTok, and 1:1 or 4:5 for feed ads. Check each platform's rules on labelling AI-generated content before publishing, and keep the provenance metadata that tools such as Veo attach. Our guide to vertical video on Reels, Shorts and Stories covers how to cut for each format.

Part 2: the 5 best AI video tools in 2026

1. Google Flow (Veo 3.1 and Gemini Omni Flash): best for cinematic generated clips

Flow is Google's AI filmmaking workspace. It gives you Veo 3.1, which generates 4, 6 or 8-second clips with native audio at up to 4K, and Gemini Omni Flash, Google's newer model that accepts image, video, audio and text references and lets you edit a video through conversation.

• Best for: brand films, product reveals, reference-driven scenes
• Strengths: Ingredients to Video for consistent products and characters, first and last frame control, scene extension, native 9:16 output
• Limits: short base clips, so longer pieces need extension and editing; 4K needs 8-second clips
• Pricing: Flow credits included with Google AI Plus, Pro and Ultra plans; Veo 3.1 is also available through the Gemini API and Vertex AI

Sora 2 used to sit in this slot, but OpenAI shut it down in 2026. Our Sora 2 vs Veo 3.1 comparison explains what happened and which tools replaced it.

2. Runway: best for creatives and cinematic control

Runway's Gen-4.5 model, released in December 2025, is known for motion quality and prompt adherence. Around it, Runway offers editing models such as Aleph and Act-Two, plus access to third-party models in the same workspace.

• Best for: creative teams, music videos, stylized ads, video-to-video transformation
• Strengths: strong motion, a deep toolset for editing generated or real footage, API access
• Limits: Gen-4.5 clips run 2 to 10 seconds at 720p; credits go quickly on long projects
• Pricing: credit-based plans; Gen-4.5 needs the Standard plan or higher

3. Kling: best for longer multi-shot clips with audio

Kling 3.0 brought multi-shot storytelling, native audio, stronger subject consistency and clips of up to 15 seconds. Kling 4.0, announced at the end of September 2026, is rolling out with a faster Flash tier first, and the full model is announced to reach 30-second clips.

• Best for: short narrative ads, character-led social content, concept trailers
• Strengths: longer single generations, multilingual dialogue, reference-based consistency
• Limits: the full Kling 4.0 model and API were still rolling out as of October 2026
• Pricing: credit-based subscription plans

4. HeyGen: best for business and sales videos

HeyGen creates presenter videos with realistic AI avatars. Its Avatar V model builds a digital twin from a short recording, talking videos can now run up to 30 minutes, and Video Agent turns one prompt into a draft with script, presenter, captions and music.

• Best for: sales outreach, onboarding, internal updates, multilingual explainers
• Strengths: custom avatars, voice cloning, lip-synced translation, API access
• Limits: avatars suit information-heavy content better than high-emotion brand films; consent rules apply to every likeness
• Pricing: free plan with limits; paid plans start at about $29 per month

5. CapCut: best free tool for all-round editing

CapCut is primarily an editor, but its AI features make it one of the most useful free tools for beginners. Auto-captions, text-to-speech and effects sit alongside AI Video, which includes ByteDance's Seedance 2.0 models for generating clips from text or images.

• Best for: assembling and captioning short-form video, quick social edits
• Strengths: excellent auto-captions, templates, mobile and desktop apps, generation and editing in one place
• Limits: access to Seedance models varies by region and may need a paid plan
• Pricing: mostly free; advanced features need CapCut Pro

Also worth knowing

Synthesia suits slide-style training videos for large teams. Luma's Ray3.2 offers up to 16 keyframes and HDR output for post-production work. Black Forest Labs' FLUX 3 Video generates clips of up to 20 seconds with native audio through its API.

How to choose your AI video tool

• Presenter on screen: HeyGen or Synthesia.
• Footage that does not exist yet: Flow, Runway or Kling, and test two before committing.
• Existing footage to cut and caption: CapCut.
• Hundreds of ad variants: a model with a stable API and clear pricing, connected to your ad workflow.

For online stores, product video is usually the fastest win. See our ideas for AI video in ecommerce.

Tips to keep AI video on-brand

• Build a reference pack (product shots, logo, colours, a character sheet) and reuse it on every generation.
• Write shot lists in plain production language so you can switch models if a tool changes.
• Add real sound design. A good voiceover and music track hide many small visual flaws.
• Review every frame for warped logos, extra fingers and misspelt text before launch.

If you want campaign-ready video without building an in-house AI studio, talk to our AI creative production team. We will scope one pilot video, recommend the right tool mix and show you the workflow before you scale.

FAQ

What is the best free AI video tool?
CapCut is the best free editor with AI features. HeyGen has a free plan for testing avatars, and Google's entry-level AI plans include Flow credits for Veo and Gemini Omni Flash, enough to test the workflow before scaling up.

Can I still use Sora to make AI videos?
No. OpenAI closed the Sora app in April 2026 and shut down the Sora 2 API in September 2026. Veo 3.1, Gemini Omni Flash, Runway and Kling are the main alternatives.

How long can an AI-generated video be?
Most generative models produce clips of 4 to 15 seconds per generation, with some reaching 20 to 30 seconds. Longer videos are built by extending clips or editing several shots together. Avatar tools such as HeyGen can produce much longer talking videos.

Do I need to label AI-generated videos?
Often, yes. Meta, YouTube and TikTok have rules for disclosing realistic AI-generated content, and some markets add legal requirements. Check each platform's current policy before publishing.