Synthesia rate limits, context window & usage caps (2026)
Rate limits, context window, message limits, file upload caps and image generation limits - all Synthesia plans compared.
Synthesia usage limits by plan
| Minutes / month | Unlimited | |
| Avatars | 240 avatars | 240+ AI avatars |
| Personal Avatars | Unlimited | Reasonable use |
| Watermark | false boolean | |
| Api Access | true boolean |
| Minutes / month | 10 minutes | |
| Avatars | 9 avatars | AI avatars |
| Personal Avatars | Not available | No personal avatar on free |
| Api Access | false boolean |
| Minutes / month | 10 minutes | |
| Avatars | 125 avatars | 125+ AI avatars |
| Personal Avatars | 3 avatars | Personal avatar slots |
| Watermark | false boolean | |
| Api Access | false boolean |
| Minutes / month | 30 minutes | |
| Avatars | 180 avatars | 180+ AI avatars |
| Personal Avatars | 5 avatars | Personal avatar slots |
| Watermark | false boolean | |
| Api Access | true boolean |
What happens when you hit Synthesia's limits?
Check the reset window - most limits refresh within 1–60 minutes
Reload or try again after the reset window passes
If you hit limits regularly, upgrade your plan to increase caps
Synthesia limit reset schedule
⚡
Per minute
API RPM limits - reset every 60 seconds
🕐
Per hour
Short rolling windows for message quotas
⏱
Per 5 hours
Common for consumer plan message limits
📅
Per day / month
Image gen credits and file storage caps
Exact reset period per limit type is shown in the "Notes" column of the plan table above. Synthesia uses rolling-window resets - quotas refresh continuously, not at a fixed midnight cutoff.
More Synthesia intelligence
Live status →
Check if rate limit errors are due to an active outage
Pricing →
Compare Synthesia plan costs and API token pricing
Free tier →
Compare free limits across all AI tools
Limits sourced from Synthesia's official documentation. Updated when plan changes are announced.
Synthesia limits - frequently asked questions
What is the Synthesia message limit?
Synthesia message limits vary by plan - see the full breakdown by tier in the table above.
Does Synthesia have a file upload limit?
Yes, Synthesia enforces file upload limits that vary by plan. See the detailed breakdown above.
When do Synthesia limits reset?
Reset periods vary by limit type - many Synthesia limits reset on a rolling window (e.g., per 5 hours or per 24 hours). Check the notes column in the table above for specific reset schedules.
What happens when you hit Synthesia's rate limit?
Synthesia will temporarily block new requests when you exceed your plan's limits. You may see an in-app message or receive an HTTP 429 response. Wait for the reset window to pass or upgrade your plan.