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Is Synthesia Down?
Check live Synthesia status — AI avatar video generation, 140+ avatars, 120+ languages, PPTX-to-video, custom avatars, and API. See recent incidents and set up free email alerts.
Synthesia — live status
Updated every 5 minutes. Full history at prismix.dev/service/synthesia.
Quick check: is Synthesia down right now?
- Prismix: prismix.dev/service/synthesia — live status + 30-day uptime + incidents.
- API call:
curl https://prismix.dev/api/v1/statuses | jq '.services[] | select(.id=="synthesia")' - Direct test:
curl https://api.synthesia.io/v2/videos -H "Authorization: YOUR_KEY"— a 200 response confirms the API is reachable.
Common causes of "Synthesia not working"
- Video stuck in "in_progress" for a long time — Synthesia renders videos asynchronously; standard videos take 5–10 minutes, while longer videos (10+ minutes of content) can take 30–60 minutes. Poll GET /v2/videos/{id} and check the status field. The "in_progress" status is entirely normal during rendering and does not indicate an outage.
- Avatar not speaking in the correct language — Synthesia uses language-specific voice models tied to each individual avatar; not all 140+ languages are supported by every avatar. Check the avatar's supported_language_codes field via GET /v2/avatars before generating. Use the test video endpoint to preview language and voice quality before committing to a full generation.
- PPTX import failing or producing incorrect output — Synthesia's PowerPoint import accepts .pptx files up to 50 slides. Embedded videos and complex slide animations are not supported and will be dropped. All text must be in standard text boxes, not shapes or SmartArt; images work if they are embedded directly in the file rather than linked.
- Custom Personal Avatar rejected during training — Synthesia requires a signed consent form from the person whose likeness is being trained. Training also requires a specific 3-minute video script performed in front of a plain, evenly lit background; inconsistent lighting throughout the recording is the most common reason for rejection.
- API rate limit (HTTP 429) or monthly video cap reached — Synthesia limits concurrent video creation by plan; the Starter plan allows 10 videos per month via API. Check your current plan limits at docs.synthesia.io. Implement retry logic with exponential backoff when receiving 429 errors, and track your monthly video count to avoid hitting the cap unexpectedly.
- Captions showing wrong language or incorrect timing — Synthesia captions are generated from the script text you provide, not from speech recognition of the rendered audio. This means typos, abbreviations, or special characters in your script will appear verbatim in captions. If the displayed caption language does not match the avatar's spoken language, verify that the subtitles field language code matches the avatar's configured language.
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- 1
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Go to prismix.dev/sign-in — email OTP or GitHub sign-in.
- 2
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On prismix.dev/service/synthesia, click the ☆ star icon.
- 3
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