NULX now has prepaid AI caption and translation credits, plus a safer API flow for video apps.

You can top up a NULX account, then use your app to request captions or a translation. NULX reserves the credits when a job is accepted, settles them when it completes, and returns the reservation if it fails.

For developers:
Reuse one request key when retrying a timed-out call. NULX returns the same job.
Look up job status by ID or by the key you sent.
Receive ready/failed webhooks with the request identity.
Check your credit balance and create a hosted top-up checkout through the API.

The goal is to make background video work easier to account for without building a second credit system in your app.

What would your video bill look like without per-view NULX charges?

Here is a concrete example from the live NULX calculator:

Cloudflare Stream: $630/month
NULX + Cloudflare R2: $43.75/month
That is $586.25 less approximately 93% lower for the included items in this example.

The workload is the same: 8,000 viewing hours per month, a 500-hour video library, and 40 hours of new uploads per month. Captions are off.