Allowances and constraints for platform-hosted storage, plus general connector limits and the costs that may apply.
Platform-hosted storage
Data for both the file connector and the table connector lives in platform-hosted storage, and the two share one allowance. The constraints in this section apply only to those two connector types. Connectors such as OSS, databases, and Yuque keep their data in the source system and do not consume this allowance.
Storage allowance
| Item | Allowance |
|---|---|
| Number of files | Up to 200,000 |
| Storage capacity | 1 TB |
| Billing | Free for a limited time |
Maximum counts
| Item | Maximum | Description |
|---|---|---|
| Number of categories | 500 per workspace | You can submit a ticket to request an increase |
| Number of tags on a single file | 100 | |
| Batch file query | 20 per request | The per-request limit when querying files in bulk by file ID |
Tag lengths
| Item | Constraint |
|---|---|
| A single tag | No more than 32 characters |
| Total length of all tags | No more than 700 characters |
Time limits
| Item | Limit |
|---|---|
| File viewing window | Only files imported within the last 90 days can be viewed. Older files are no longer displayed, but they are not deleted |
| Session file retention | Files whose categoryType is SESSION_FILE are retained for up to 7 days |
Format limits
| Item | Description |
|---|---|
| Direct import not supported | JSON, CSV, and YAML. Convert them to XLSX or XLS first |
General field lengths
| Field | Constraint |
|---|---|
| Connector name | Up to 64 characters in the console |
Capability boundaries
The following capabilities are not available at this time. Keep them in mind while planning:
| Item | Description |
|---|---|
| Deleting a connector | You can only delete a connector from its card in the console |
| Deleting a data collection | The platform does not currently support deleting data collections. When you need to isolate data, create a new collection and migrate the files |
| Changing the connector type | This cannot be changed after creation. You can only create a new connector |
| Changing the data connection associated with a knowledge base | Once a knowledge base is created, its data source is read-only. To switch sources, re-create the knowledge base |
About costs
Platform-hosted storage in Connector itself is free for a limited time. Beyond that, the following costs may apply:
| Source | Description |
|---|---|
| OSS outbound traffic fees | When data is read from OSS, OSS charges according to its own billing rules, calculated separately from your Connector usage. This cost becomes noticeable when the same bucket is read frequently |
| Document parsing and model calls | When you use an LLM-based parser or call a model in an agent application, charges follow the billing rules of the corresponding model |