Usage Limits¶
This page explains what is included with the hosted Yomitan All Language Audio service.
Included Usage¶
Each eligible Patreon user gets:
| Limit | Amount |
|---|---|
| Audio requests | 30,000 per Patreon billing period |
| TTS generation credits | 12,000 per Patreon billing period |
| Forvo requests | 500 per Forvo day |
There is also one shared Forvo limit for the whole service:
| Limit | Amount |
|---|---|
| Global Forvo requests | 10,000 per Forvo day |
Monthly limits follow your Patreon billing period, not the calendar month. A Forvo day runs from 22:00 UTC to the next 22:00 UTC.
Audio Requests¶
An audio request is one request from Yomitan to this service.
These count:
/audio/list, when Yomitan asks for available audio sources./audio/get, when Yomitan downloads one selected audio file.
Dashboard visits, Patreon login, and API key regeneration do not count.
TTS Generation Credits¶
TTS credits are only spent when new TTS audio is generated. Cached audio does not spend credits again.
Forvo does not use TTS credits.
| Provider | Credits per character | 8-character word | 12,000 credits gives about |
|---|---|---|---|
| AWS Polly Standard | 0.04 |
0.32 credits |
37,500 generations |
| AWS Polly Neural | 0.16 |
1.28 credits |
9,375 generations |
| ElevenLabs | 1 |
8 credits |
1,500 generations |
| OpenAI TTS | 1 |
8 credits |
1,500 generations |
Shorter words cost less. Longer words cost more.
Forvo Requests¶
Forvo uses request limits, not generation credits.
One live request to Forvo uses one Forvo request. You have 500 Forvo requests per Forvo day. The whole hosted service shares a 10,000 request global Forvo limit per Forvo day.
If your personal Forvo limit is reached, Forvo stops for your API key until the next Forvo day. If the global Forvo limit is reached, Forvo stops for everyone until the next Forvo day.
TTS sources can still work when Forvo is limited.
Recommended Yomitan Setup¶
Use the TTS link first in Yomitan. Add the Forvo link below it if you want native-speaker recordings as a fallback or manual option.
This avoids spending Forvo requests on every normal lookup.
At The Limit¶
| Limit reached | Result |
|---|---|
| Audio requests | Audio lookups/downloads stop until the next billing period. |
| TTS credits | New uncached TTS generation stops until the next billing period. |
| Personal Forvo requests | Forvo stops for your API key until the next Forvo day. |
| Global Forvo requests | Forvo stops globally until the next Forvo day. |
Your dashboard shows current usage, remaining usage, and reset windows.