Luma Ray
Luma Ray 3.2 API and pricing
Ray 3.2 is Luma's video model. On Root you can run it from the API, from the web app, or from Claude and ChatGPT, and pay for each clip from one balance. A five-second 720p clip costs $0.35.
Updated
First month free on the Beginner plan, with 650 credits to try any model.
AI video made in Root
What Ray 3.2 can do
- Clips up to 10 seconds long in one generation.
- 540p, 720p, 1080p output.
- Start from an image, or give it a first and a last frame to move between; a clip that starts from a frame is 5 seconds long.
- Aspect ratios: 16:9, 9:16, 1:1, 4:3, 3:4, 21:9.
Luma Ray 3.2 pricing
What one clip costs on Root, in dollars; 100 credits is $1. You only pay for clips that finish.
| Model | 5 s, 720p | 10 s, 720p | 5 s, 1080p | 10 s, 1080p |
|---|---|---|---|---|
| Ray 3.2 | $0.35 | $1.04 | $1.38 | $4.14 |
The API and the app both show the price before a run starts. Use your own Luma key in Root and those clips cost nothing here. Compare every model
When to use Ray 3.2
| Model | Best for | Longest clip | Resolution | Sound |
|---|---|---|---|---|
| Ray 3.2 | Natural motion and realistic camera moves, from a prompt or an image. | 10 s | 540p, 720p, 1080p | No |
The Luma Ray API
Make an API key in Root under Settings, then API. You choose a daily spending limit for each key when you create it. Then send a request:
curl https://root.film/api/v1/generations \
-H "Authorization: Bearer rfk_your_key" \
-H "Content-Type: application/json" \
-d '{"model":"ray-3.2","project_id":"YOUR_PROJECT_ID",
"input":{"prompt":"a slow dolly through a foggy pine forest at dawn",
"duration_seconds":5,"resolution":"720p"}}'- The finished clip is saved to the project you name, so your team sees it in the app too.
- Send an Idempotency-Key header and a retry never charges twice.
- You can also ask for Ray clips from Claude or ChatGPT. How to connect
Luma Ray questions
How much does Luma Ray 3.2 cost?
On Root, a five-second Ray 3.2 clip at 720p costs $0.35. Ten seconds at 1080p costs $4.14. The API and the app show the price before a run starts, and failed runs are not charged.
Is there a Luma API on Root?
Yes. Create an API key in Root and send the model id ray-3.2 to the generations endpoint with a prompt and a project. The clip is saved to that project, and you get a download link when it's done.
How long can a Ray 3.2 clip be?
Up to 10 seconds in one generation, at 540p, 720p, 1080p. A clip that starts from a frame is 5 seconds long.
Can Ray 3.2 start from an image?
Yes. Give it a first frame, or a first and a last frame to move between. A clip that starts from a frame is 5 seconds long.
Does Ray 3.2 make sound?
No. Ray 3.2 makes silent video. Add voices and music in Root, or use a model that makes sound with the picture, such as Seedance or Veo.
Can I use my own Luma key?
Yes. Add your Luma key in Root and Ray runs on it, and Root charges nothing for those clips.
Can I use Luma from Claude or ChatGPT?
Yes. Connect Root to Claude or ChatGPT and ask for a Ray 3.2 clip in the chat. It's priced and saved to your project the same way as a clip made in the app.
Can I try Luma Ray for free?
For a month, yes. The first month of Root's Beginner plan is free and comes with 650 credits, enough for 18 five-second Ray 3.2 clips at 720p. After that the plan is $9 a month, and you can cancel whenever you like.
Try Root free for a month
The first month of the Beginner plan is free and comes with 650 credits to spend on any model. After that it's $9 a month, and you can cancel whenever you like.