Can AI generate video with sound?
Yes — Veo 3 and Sora-class models generate native synced audio in 2026, including ambient sound, music and basic dialogue. Most other frontier models (Kling, Runway, Hailuo, Luma) still render silent video; audio gets added in post with a separate music/SFX tool or a voiceover model like ElevenLabs.
- Veo 3 + Sora-class = native audio in the same render.
- Everything else = silent + add audio in post.
- ElevenLabs is the go-to for AI voiceover in 2026.
- Native synced audio is a major workflow shortcut for ads.
Which models actually generate audio
As of 2026, only Veo 3 and Sora-class models reliably generate synced audio in the same pass as the video. Both can produce ambient sound (footsteps, wind, traffic), background music, and limited dialogue. Quality is good enough for social media but still under broadcast level.
Kling, Runway Gen-3, Hailuo, Luma Ray and Pika all output silent video. Audio is your job afterwards.
The standard audio post workflow
Most pros generate silent video on whichever model best fits the shot, then layer audio in a normal editor. Music from Epidemic Sound or Artlist, SFX from a sample library, voiceover from ElevenLabs. Total post time per 30-second clip is about 10 minutes once you have a template.
FAQ
Is Veo 3 audio good enough to ship without editing?
For ambient and music, often yes. For dialogue, usually no — generate the dialogue separately on a dedicated TTS model like ElevenLabs and replace it.
Can I prompt Veo 3 for specific music styles?
Yes — describe the genre, instrumentation and tempo in your prompt. Results are best with descriptive prompts ('lo-fi piano, 70bpm') vs naming artists.