How to Make Videos with Dialogue Using Sora 2
Sora 2 is OpenAI’s text-to-video model that generates picture, dialogue, and sound effects in one pass, so you get a talking character without a separate dubbing step.
OpenAI shipped Sora 2 in late 2025 with a stronger physics engine and native audio. That audio is the real change: in Sora 1 you generated a silent clip and added sound later, badly. Now the mouth movement and the words arrive together. Access runs through the Sora app at sora.com or through a ChatGPT subscription.
What do you need to use Sora 2?
| Access route | Cost | Notes |
|---|---|---|
| Sora app | Free limited use | Restricted generations |
| ChatGPT Plus | $20/mo | Generous but capped |
| ChatGPT Pro | $200/mo | Highest limits |
The free tier exists for experimentation. Regular work means Plus at minimum. Clips are capped in length per generation, typically short enough that you will assemble several into a finished piece.
How do you prompt for spoken dialogue?
Put the line in quotes inside the prompt and describe who speaks it. For example: “A barista leans over the counter and says ‘We’re out of oat milk’ while steam rises from the machine.” Keep lines under about twelve words; longer monologues drift and lose lip sync. Describe the acoustic environment too, since ambient sound is generated alongside the voice.
What is the Cameo feature?
Cameo verifies a real person once with a short recording, then lets that person appear in other people’s generations with consent. It is the first mainstream likeness system with a consent model built in. Verification is a one-time step, and you control who can use your cameo.
Where does Sora 2 still fail?
- Fast, complex interactions break physics: collisions, liquid, crowds.
- Text on signs and labels distorts over a clip.
- Long dialogue loses sync past the first sentence or two.
- Every output carries a visible AI watermark.
The watermark is non-negotiable, which rules Sora 2 out for anyone who needs clean delivery. Plan for it in post or pick a different tool.
Who gets the most out of Sora 2?
Social teams producing talking-head shorts, explainer and training clips that need a presenter without a shoot, and advertising concepts that require lip-synced lines. It is weakest for precise technical animation where physics accuracy matters, and for anything longer than about fifteen seconds in a single generation.
Key Takeaways
- Sora 2 generates picture, dialogue, and sound effects together.
- Access requires the Sora app, ChatGPT Plus at $20/mo, or Pro at $200/mo.
- Cameo is a consent-based likeness system with one-time verification.
- Expect short clips, visible watermarks, and physics failures on fast motion.
