Tier Limits Reference
Complete reference of all limits for each subscription tier.
Summary Table
| Resource |
Basic |
Medium |
Pro |
| Messages |
100 lifetime (free trial) |
400/month |
1,500/month |
| Assistants |
1 |
3 |
8 |
| Knowledge Bases |
1 |
2 |
5 |
| Storage/Store |
5 MB |
30 MB |
150 MB |
| Functions |
1 |
5 |
15 |
| Variables |
5 |
20 |
75 |
Default Tier
Users without an active subscription get Basic — a one-time 100-message free trial. Basic does not reset; once consumed, you must upgrade to keep messaging.
Message Limits
Quota
| Tier |
Quota |
| Basic |
100 messages, lifetime (no monthly reset) |
| Medium |
400 messages/month |
| Pro |
1,500 messages/month |
Notes:
- Each AI response counts as 1 message (regardless of length or model)
- Medium and Pro reset on the billing-cycle date; unused messages do not roll over
- Basic is one-time — when it's exhausted, sending pauses permanently until you upgrade
Rate Limits
Per-endpoint per-minute throttling is applied across the API to prevent abuse (e.g. password reset is more aggressive than chat). Rates increase with tier on most endpoints. You will not hit these in normal product use; if you do, the API returns 429 RATE_LIMIT_EXCEEDED and you can retry after a short wait.
Resource Limits
Assistants
| Tier |
Max Assistants |
| Basic |
1 |
| Medium |
3 |
| Pro |
8 |
What counts:
- Active assistants
- Both public and private
- Deleted assistants don't count
Knowledge Bases (Stores)
| Tier |
Max Stores |
| Basic |
1 |
| Medium |
2 |
| Pro |
5 |
Storage per Store
| Tier |
Storage Limit |
| Basic |
5 MB |
| Medium |
30 MB |
| Pro |
150 MB |
Notes:
- Limit applies per store, not total
- Total storage = Stores x Storage/Store
- Example: Pro can have 5 stores x 150 MB = 750 MB total
Functions
| Tier |
Max Functions |
| Basic |
1 |
| Medium |
5 |
| Pro |
15 |
Variables
| Tier |
Max Variables |
| Basic |
5 |
| Medium |
20 |
| Pro |
75 |
Feature Availability
Core Features
| Feature |
Basic |
Medium |
Pro |
| Chat Interface |
Yes |
Yes |
Yes |
| Website Embed |
Yes |
Yes |
Yes |
| Share Links |
Yes |
Yes |
Yes |
| Customization |
Full |
Full |
Full |
| Analytics |
Full |
Full |
Full |
Integrations
| Integration |
Basic |
Medium |
Pro |
Status |
| Website Widget |
Yes |
Yes |
Yes |
Live |
| Shopify |
Yes |
Yes |
Yes |
Live |
| Instagram |
Yes |
Yes |
Yes |
Beta |
| Messenger |
Yes |
Yes |
Yes |
Beta |
| Gmail |
Yes |
Yes |
Yes |
Beta |
Advanced Features
| Feature |
Basic |
Medium |
Pro |
| Custom Templates |
Yes |
Yes |
Yes |
| AUTO_PAY Overflow |
Yes |
Yes |
Yes |
| Priority Support |
No |
Yes |
Yes |
| API Access |
Yes |
Yes |
Yes |
Support Levels
| Tier |
Support Type |
Response Time |
| Basic |
Email support |
48 hours |
| Medium |
Priority email |
24 hours |
| Pro |
Dedicated support |
4 hours |
Overflow Rates
Overflow billing is available on Medium and Pro only. Basic cannot top up — sending pauses permanently when the 100-message lifetime trial is consumed.
| Tier |
Overflow Rate (per message) |
| Basic |
Not available |
| Medium |
$0.10 |
| Pro |
$0.10 |
Initial Balance
New users receive a $1.00 USD initial balance, usable for overflow once on Medium or Pro.
Calculating Your Needs
Message Estimation
| Use Case |
Est. Messages/Month |
| Evaluating fit |
Use the 100-message Basic trial |
| Small website |
100–400 |
| Medium traffic |
400–1,500 |
| High traffic |
1,500+ (Pro + AUTO_PAY overflow) |
Storage Estimation
| Content Type |
Typical Size |
| FAQ document |
50-200 KB |
| Product catalog |
500 KB - 2 MB |
| Documentation set |
1-10 MB |
| Large knowledge base |
10-50 MB |
Choosing Your Tier
| If you need... |
Choose... |
| To evaluate the platform |
Basic (100-message free trial) |
| Up to 400 messages/month |
Medium |
| Up to 1,500 messages/month or priority support |
Pro |
| More than 1,500 messages/month |
Pro + AUTO_PAY overflow at $0.10/msg |
Upgrading Considerations
When to Upgrade
Consider upgrading when:
- Consistently hitting message limits
- Need more assistants or stores
- Require additional storage
- Need faster support
Upgrade Benefits
| From |
To |
Immediate Benefits |
| Basic |
Medium |
Recurring 400 msg/month, 3 assistants, 2 stores, 30 MB/store, AUTO_PAY overflow |
| Medium |
Pro |
1,500 msg/month, 8 assistants, 5 stores, 150 MB/store, dedicated 4h support |