Credits & Pricing

Lumzi uses a simple credit-based system to power all AI features across the platform. Credits let you access AI-powered language tools like translation, chat, listening practice, and more.

What Are Credits?

Credits are prepaid units used to access Lumzi's AI features.

  • · 1 credit = $0.01 — the base rate at the smallest package
  • · Credits never expire
  • · Credits are not a currency or stored money balance
  • · Credits cannot be transferred or redeemed for cash

Credits are simply a way to access services on Lumzi.

How Credits Work

Every time you use Lumzi, credits are deducted based on how much AI processing is required. The number of credits used depends on:

  • · The length of your input
  • · The length of the AI response
  • · The type of feature used

In general: short requests use fewer credits; longer or more complex requests use more.

Why Usage Varies

Lumzi uses advanced AI models that process text in units called tokens. Because different inputs produce different outputs, credit usage can vary slightly between requests. This ensures you only pay for what you use.

What You Can Do With Credits

Translate News Articles

Unlock full translations of real-world articles. Optionally generate audio for listening practice.

AI Chat

Have natural conversations in your target language and receive corrections and feedback.

Listening Practice

Generate audio for sentences, stories, and articles. Practice comprehension with real spoken language.

Journal & Feedback

Write entries and receive AI corrections and suggestions.

Flashcards & Learning Tools

Create custom vocabulary and practice with spaced repetition.

Stories & Writing Practice

Generate stories in your target language and learn through context and immersion.

Credit Usage Examples

Estimates based on typical usage. Actual cost depends on input and output length.

Translate a news article

per article, cached — read it again for free

~3 credits

AI chat message

per message sent and received

~0.2–0.7 credits

Journal entry + AI feedback

depends on entry length

~3–9 credits

Generate a story

depends on length setting

~2–4 credits

Word lookup

per word tapped

~0.1 credits

Sentence translation

per sentence looked up

~0.3 credits

Audio generation (TTS)

per sentence or short passage

~1–5 credits

How Far Do Credits Go?

Rough estimates at average usage. Mix and match features — credits work across everything.

Package Articles Chat messages Journal entries
600 credits $6 ~200 ~600 ~120
1,500 credits $12 ⭐ ~500 ~1500 ~300
3,500 credits $25 ~1166 ~3500 ~700
7,500 credits $50 🔥 ~2500 ~7500 ~1500

Word lookups and audio generation cost much less — heavy use of those features will stretch your credits further.

Buying Credits

Credits are added instantly to your account. Payments are securely processed via Stripe.

600 credits $6
⭐ Most Popular 1,500 credits +300 bonus $12
3,500 credits +1,000 bonus $25
🔥 Best Value 7,500 credits +2,500 bonus $50

Larger packages include bonus credits above the base rate.

Create an account to get started →

Auto-Refill Optional

Enable auto-refill to automatically purchase credits when your balance runs low.

  • · You choose the refill amount
  • · You choose the threshold
  • · You can disable it any time from account settings

Important Notes

· Credits are consumed when services are used and cannot be refunded once used.

· Usage may vary depending on request size and output length.

· AI-generated content may vary in quality and accuracy.

Need Help?

If you have questions about credits or pricing, contact us.