AI video changed a lot in 2026. OpenAI closed the Sora app in April and shut down the Sora API on September 24. At the same time Google, Kuaishou, ByteDance and Runway released stronger models that make clips with sound, up to 4K. For SMM specialists this means short ad clips and Reels can be produced faster and cheaper than before.
The main AI video tools
| Tool | Strengths | Starting price |
|---|---|---|
| Google Omni Flash and Veo (Gemini, Flow) | Clips with sound inside Gemini, vertical format | Included from Google AI Plus, $4.99 |
| Kling 4.0 | Up to 30-second clips, up to 4K, keyframes | Free tier, paid from about $9 per month |
| Runway Gen-4.5 | Professional editing tools and many models in one place | $12 per month billed yearly, or $15 monthly |
| Seedance 2.5 (ByteDance) | Realistic motion with native audio | Through Dreamina from about $15 per month |
| Luma Dream Machine | Cinematic camera moves | Free tier, Plus $30 per month |
| Pika | Quick, fun effects for social media | Free tier, paid from about $10 per month |
What is new this autumn
- Kling 4.0 launched in mid-October 2026 with longer clips and 4K output.
- Google made Gemini Omni 1.2 Flash generally available on November 5. It makes clips of up to 15 seconds, at about $0.07 per second of 720p video through the API.
- Runway is replacing its Unlimited plan with a Max plan.
How to choose
- For Reels and Stories without extra subscriptions: use video generation in Gemini if you already pay for Google AI.
- For longer, realistic ad clips: test Kling 4.0 and Seedance.
- For agencies that edit a lot: Runway, because it combines generation and editing.
- Always check commercial rights: some free tiers do not allow commercial use.
AI clips work best as part of a video, such as a product shot, a background or a transition. For trust and sales, combine them with real footage of your team, product and clients.
Prices and dates in this article were checked on November 10, 2026. AI companies change them often, so always confirm on the official pricing page before you buy.
Frequently asked questions
Is Sora still available?
No. OpenAI closed the Sora app in April 2026 and shut down the Sora API on September 24, 2026.
What is the best AI video generator in 2026?
There is no single winner. Google’s Omni Flash and Veo, Kling 4.0, Seedance and Runway are the strongest options, and the best one depends on clip length, style and budget.
Can I make a whole ad with AI video?
Yes, short ads are possible, but most brands get better results by mixing AI clips with real footage and a human voice-over.
Read next
- Best AI Image Generators in 2026: Midjourney, GPT Image, Nano Banana, Flux and More
- Best Video Editing Apps for Reels and TikTok in 2026
- How to Shoot Reels on Your Phone: A Beginner’s Guide
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