Four names dominate every AI video conversation — and one of them is shutting down. Google Veo 3.1 leads on quality with sound built in, Kling 3.0 wins on price, Runway remains the filmmaker's toolkit, and Sora 2, the most famous of the four, is being discontinued by OpenAI. Here's the honest state of play, and what to actually use.
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The 30-second verdict
| Best at | Weakest at | Price | |
|---|---|---|---|
| Google Veo 3.1 | Quality + native audio | Credit costs at volume | $19.99/mo (Google AI Pro) |
| Kling 3.0 | Price per clip, free tier | Peak-time queues | Free · from $6.99/mo |
| Runway | Editing & VFX workflow | Raw cost at scale | Free · $15/mo |
| Sora 2 | Physics & realism | Being shut down | Discontinued |
First, the news: Sora is going away
OpenAI confirmed a two-stage shutdown: the Sora app and web experience closed on April 26, 2026, and the API follows on September 24, 2026. The model still produces the most physically convincing motion of the four — and it doesn't matter, because you can't build anything on it. If you're searching for a Sora alternative, the honest mapping is:
- You wanted Sora's realism → Google Veo 3.1 is the closest match, with native audio Sora never had.
- You wanted to experiment cheaply → Kling 3.0 gives you 66 free credits every day.
- You wanted to make finished films → Runway — generation plus a real editing suite.
Image quality & motion
Veo 3.1 sets the current ceiling. Up to 4K on the flagship tier, coherent motion, and — the real separator — synchronized dialogue, sound effects and ambience generated with the picture. No other flagship does audio this well in one pass.
Kling 3.0 is closer than its price suggests. Motion realism and prompt adherence approach the Western flagships at 720p–1080p, with audio and lip-sync included. Side by side with Veo you'll spot the difference; in a social feed, nobody will.
Runway's Gen models are consistently strong and improving fast, with the best aesthetic controls of the group — camera direction, motion brushes, style consistency. Sora 2 still wins pure physics simulations, for the two months that remains relevant.
Price per clip: the honest math
- Kling is the value champion — roughly $0.10/second, about $0.84 for a 10-second 1080p clip with audio, and the most generous free tier in the category (66 credits daily).
- Veo via Google AI Pro ($19.99/mo) includes ~1,000 Flow credits — around 100 Lite clips, 50 Fast, or 10 flagship-quality videos a month. Serious volume means the $249.99/mo Ultra tier.
- Runway starts at $15/mo, but credits burn quickly at high resolution — it's priced as a pro tool.
One caveat that bites beginners: Kling's monthly plan credits don't roll over. If your volume is spiky, its top-up packs (2-year validity) are the better buy.
Control & workflow
Generation quality gets the headlines; workflow decides what you actually ship.
- Veo + Flow is Google's filmmaking environment: reference images for consistent characters, shot extension, scene assembly. It's the best story for multi-shot narrative work.
- Runway remains the only one that pairs generation with a genuine editing suite — inpainting, green screen, motion tracking. For ad teams and filmmakers, generating is half the job; Runway covers the other half.
- Kling offers character consistency ("elements") and lip-sync, in a busier interface that rewards patience.
Who should pick what
- Marketers and agencies: Veo 3.1 — quality plus audio in one subscription your team already understands.
- Creators on a budget, high-volume testing: Kling 3.0 — learn free daily, pay cents per clip when you scale.
- Filmmakers and editors: Runway — the full craft toolkit. (Its lighter rival Pika is covered in our Runway vs Pika breakdown.)
- Talking-head and training video: none of these — you want an avatar tool, compared in Synthesia vs HeyGen.
Browse everything in our Video category — or see how creators fit video into a full stack in best AI tools for content creators.