Usage Limits
Last updated: Oct 23, 2025
OmniTranslate includes built‑in usage limits to ensure fair performance for everyone. These limits replenish automatically over time:
- Per hour: replenishes gradually throughout the hour.
- Per day: replenishes gradually throughout the day.
Plan allowances vary by feature (Free, Starter, Pro).
IMPORTANT
We may adjust quotas without prior notice to prevent abuse, ensure fair use, and maintain system stability.
WARNING
Please use OmniTranslate responsibly. Excessive or abusive activity may trigger temporary throttling or cooldowns.
Library
🧾 Storage
The maximum number of translations you can store across all threads.
| Plan | Limit |
|---|---|
| Free | 500 translations |
| Pro | 50,000 translations |
NOTE
- Delete unused threads or translations to reduce storage usage.
- If you exceed the limit, you won’t be able to start new translations. Existing translations remain stored.
📤 EPUB Export
How many export requests (EPUB exports or full‑thread downloads) you can make per minute.
For export instructions, see the Exporting Translations guide.
| Plan | Limit |
|---|---|
| Free | Not available |
| Pro | 2 per minute |
Translation
✍️ Character Limit
How many characters you can translate in a single request.
| Plan | Limit |
|---|---|
| Free | 5,000 characters |
| Pro | 20,000 characters |
NOTE
Character counts are measured in UTF‑16 code units.
🔀 Concurrency
How many translations you can run at once.
| Plan | Limit | Notes |
|---|---|---|
| Free | 1 at a time | Starts the next when the current finishes |
| Pro | 2 at a time | Run two translations simultaneously |
🧩 Parallelism
How many chunks (sections) are processed in parallel within a single translation. This affects translation speed.
| Plan | Limit |
|---|---|
| Free | 1 chunk at a time |
| Pro | 4 chunks at a time |
Advanced Features
🧠 Advanced Term Extraction
When extracting terms, the model learns from your existing glossary and considers your story’s context when identifying and translating terms. It is significantly better at spotting important terms and filtering out noise.
NOTE
- Quotas for Advanced Term Extraction may change based on real‑world usage.
- Because this mode is more thorough, it can be slightly slower.
| Plan | Limit |
|---|---|
| Free | Not available |
| Starter | 5 extractions per day |
| Pro | 600 extractions per day |
💡 Term Suggestion
How many times per day OmniTranslate can automatically suggest new glossary terms with accurate, contextually relevant translations.
The explanation button provides deeper insight into each suggestion.
| Plan | Limit |
|---|---|
| Free | 1 per day |
| Pro | 10 per day |
🔁 Reverse Lookup
How many times per day you can check glossary entries or term meanings.
You can perform a reverse lookup on any translated text to see the original term and instantly add it to your glossary if needed.
| Plan | Limit |
|---|---|
| Free | 10 per day |
| Starter | 50 per day |
| Pro | 500 per day |
🔄 Chunk Regeneration
How many times per hour you can regenerate a specific part (chunk) of a translation.
See the Chunk Regeneration guide for more details.
| Plan | Limit |
|---|---|
| Free | Not available |
| Pro | 100 per hour |
✨ Chunk Enhancement
How many times you can improve an existing translation per day.
See the Chunk Enhancement guide for more details.
| Plan | Limit |
|---|---|
| Free | Not available |
| Pro | 100 per day |
🤖 Model
Each translation model (Wu Mini, Wu Flash, Wu Core, Wu Max) has its own throughput. Below are approximate counts of average chapters (≈3,000 characters) you can translate under each plan.
NOTE
- Hourly and daily quotas replenish automatically; no full reset is required.
- For details on each model, see the Translation Models guide.
⭐ Wu Mini
| Plan | Period | Chapters |
|---|---|---|
| Free | Per hour | ~7 |
| Per day | ~70 | |
| Starter | Per hour | ~15 |
| Per day | ~130 | |
| Pro | Per hour | ~150 |
| Per day | ~1,300 |
Basic model with good quality.
⚡ Wu Flash
| Plan | Period | Chapters |
|---|---|---|
| Free | Per hour | ~4 |
| Per day | ~40 | |
| Starter | Per hour | ~7 |
| Per day | ~70 | |
| Pro | Per hour | ~90 |
| Per day | ~800 |
Best balance between speed and quality; recommended default for most users.
🧪 Wu Core
| Plan | Period | Chapters |
|---|---|---|
| Free | Per hour | ~3 |
| Per day | ~30 | |
| Starter | Per hour | ~6 |
| Per day | ~60 | |
| Pro | Per hour | ~45 |
| Per day | ~800 |
Higher‑quality model offering consistent, uncensored translations.
👑 Wu Max
| Plan | Period | Chapters |
|---|---|---|
| Free | Per hour | Not available |
| Per day | Not available | |
| Starter | Per hour | Not available |
| Per day | Not available | |
| Pro | Per hour | ~15 |
| Per day | ~135 |
Maximum‑quality, agentic translation.
WARNING
Wu Max Experimental v2 shares the same quota as the previous Wu Max Experimental model, so please use it wisely.
📚 Summary: Daily Translation Estimates
| Model | Free | Starter | Pro |
|---|---|---|---|
| Wu Mini | ~70 chapters | ~130 chapters | ~1,300 chapters |
| Wu Flash | ~40 chapters | ~70 chapters | ~800 chapters |
| Wu Core | ~30 chapters | ~60 chapters | ~800 chapters |
| Wu Max | – | – | ~135 chapters |
TIP
- Per‑hour and per‑day limits replenish gradually; you don’t have to wait for a full reset.
- You can switch between models anytime based on your translation needs. If a model becomes rate-limited, switch to another and continue translating.