Captions AI Not Working?
Try StreamTranslate.

Why Captions.ai might not be working

Captions.ai is an AI app for editing recorded short-form video — auto-captions, AI avatars, and eye-contact correction on clips you've already filmed. When it's "not working," it's usually one of these, and one of them isn't a bug at all.

• The app froze or crashed on export. Rendering long or high-res clips can stall or fail, especially on older phones.
• Processing is stuck in the queue. Server-side jobs can back up, leaving your caption or render "processing" indefinitely.
• Subscription or credit paywall. Features and exports are gated behind a plan; lapsed credits silently block output.
• Login or sync issues. Account or device sync problems can lock you out of your projects.
• It does not do live streams. This is the big one: Captions.ai is built for recorded video. If you're trying to caption or translate a live Twitch or YouTube stream in real time, that's a use-case mismatch, not a glitch — no amount of troubleshooting will make it work.

Quick things to check first

If you're editing a recorded clip, rule out the basics:

• Update the app to the latest version and restart it.
• Log out and back in to re-sync your projects.
• Check your subscription status and remaining credits.
• Free up device storage, then retry the export at a lower resolution.
• Switch networks (Wi-Fi to cellular) if a render is stuck uploading.

But if what you actually need is captions or translation on a live stream, Captions.ai can't do that no matter what — and that's exactly what StreamTranslate is for.

StreamTranslate does the thing Captions.ai can't: live

StreamTranslate is built for real-time streaming, not post-production. It listens to your stream audio and puts translated subtitles on screen as you talk — all in the cloud.

• Real-time captions and translation for live Twitch, YouTube, Kick, and OBS streams — not recorded clips.
• OBS browser source — one URL, no plugin, no app to install.
• 30+ languages with dual-language subtitles, powered by advanced AI.
• Sub-500ms latency and zero CPU/GPU load on your machine.
• 6 hours free, no credit card, live in about a minute.

Set up StreamTranslate in 60 seconds

1. Open the control panel at streamtranslate.live/control.
2. Pick your languages — the one you speak and the one(s) you want on screen.
3. Copy your OBS browser source URL.
4. Add it to OBS as a Browser Source at 1920x1080.
5. Go live — real-time translated subtitles, 6 hours free.

Captions.ai vs StreamTranslate at a glance

Recorded video vs live: which do you actually need?

It is worth being clear about the split, because it decides which tool will ever work for you. Captions.ai is a post-production app: you film a clip, upload it, and it burns in captions or AI effects after the fact. If your goal is a polished TikTok or Reels video, that is its lane.

StreamTranslate is the opposite — it captions and translates a broadcast while it is happening. There is no upload, no render, no export. Your stream audio goes up, translated subtitles come back in under half a second, and they sit in your OBS scene like any other overlay.

So if you are a Twitch, YouTube Live, or Kick streamer — gaming, Just Chatting, IRL, VTubing, or running an esports broadcast — and you want non-English viewers to follow along in real time, a recorded-video tool simply cannot do it. That is the gap StreamTranslate fills: live, multilingual subtitles that turn a one-language stream into one your whole audience can watch.

StreamTranslate supports 30+ languages with dual-language subtitles, so you can show the original speech and the translation at once. The most common pairs streamers use — English to Japanese, Korean, Spanish, Portuguese, and Arabic — are all built in, and switching targets takes one click.