Free Tier Overview and Application Guide
Start your AI journey at zero cost. Enjoy powerful LLM APIs for free.
🎉 New User Benefits
Sign up now to receive ¥20 in free credits
- No credit card required; start with zero friction
- Supports all basic models
- Full API feature access
1. Free Tier Details
GPT-4o mini
Daily conversation, simple tasks
速率限制: 20 RPM
Text generationChat completionStreaming output
Claude 3 Haiku
Code completion, documentation summary
速率限制: 10 RPM
Fast responseLightweight tasksCode understanding
GPT-3.5 Turbo
Batch processing, prototype development
速率限制: 30 RPM
High-speed processingCost effectiveWide compatibility
Embeddings
RAG applications, search engines
速率限制: 100 RPM
Text vectorizationSemantic searchSimilarity calculation
💡 Usage tips
- • Free credits reset automatically on the 1st of each month
- • Unused credits do not roll over
- • After exceeding the quota, top up or wait for next month’s reset
- • Upgrade anytime to paid plans for higher limits
2. Application Process
1
Register Account
Visit n1n.ai to create a free account
30 seconds2
Email Verification
Verify your email to get the basic quota
1 minute3
Complete Information
Provide usage details to get additional quota
2 minutes4
Get API Key
Generate a key and start using immediately
Instant3. Get More Free Credits
🎁¥10 credit
First-time registration
New users only
✉️¥5 credit
Email verification
Credited immediately after verification
📝¥5 credit
Complete profile
Provide complete information
👥¥20 credit
Invite friends
Friend successfully registers
💻¥50 credit
Developer verification
GitHub verification
🎓¥100 credit
Education verification
Student/teacher verification
🎯 Credit accumulation tips
- • Earn up to ¥190 in free credits by completing all tasks
- • Join community events for periodic extra rewards
- • Share your usage tips to earn special rewards
- • Open-source contributors enjoy long-term free credits
4. Plan Comparison
| Features | Free ¥0/mo | Starter ¥99/mo | Pro ¥499/mo |
|---|---|---|---|
| Basic model calls | ✅ Included | ✅ Included | ✅ Included |
| Advanced models (GPT-4o) | ❌ Not supported | ✅ Limited | ✅ Unlimited |
| Image generation | ❌ Not supported | ✅ 100 times/month | ✅ Unlimited |
| API call rate | 20 RPM | 100 RPM | Unlimited |
| Technical support | Community support | Email support | 24/7 dedicated support |
| Data retention | 7 days | 30 days | Permanent |
5. Credit Usage Monitoring
Real-time monitoring
Credits used this month¥8.50 / ¥20.00
Tokens used42,500 / 100,000
API calls1,234 次
Usage tips
- Prefer GPT-3.5 Turbo for development and testing
- Enable streaming output to reduce latency
- Set max_tokens appropriately to control cost
- Use caching to avoid redundant requests
6. FAQ
Can free credits be used for commercial projects? +
Yes. Free credits have no usage restrictions and can be used for personal learning, development testing, or small commercial projects. Given the limits, we recommend upgrading to a paid plan for production workloads.
Will I be charged automatically after free credits run out? +
No. When a free account runs out of credits, API calls will return an error and no charges will occur. You need to top up or upgrade to continue using the service.
How do I check remaining credits? +
After logging into the console, go to "Usage Statistics" to see remaining credits, tokens used, API calls, and more in real time. You can also query via the API.
How do I apply for education verification? +
In account settings, choose "Education Verification" and verify with an EDU email or upload a student/teacher ID. Upon approval, you will receive ¥100 in credits and long-term discounts.
Ready to get started?
Sign up now to receive free credits in under 3 minutes and start your AI development journey.