Usage quotas, file format limits, and frequency limits for the knowledge base.
Usage Quotas
| Category | Description | Limit |
|---|---|---|
| Number of knowledge bases | The maximum number of knowledge bases per Alibaba Cloud account (primary account). | Using RDS data source: 100; other data sources: unlimited |
| Knowledge base storage capacity (platform storage) | The dedicated free vector storage space per knowledge base. | Flagship: 9,999 GB; Standard: 100 GB |
| Number of categories | The maximum number of categories (parent + child) per business space. | 500 / 1,200 |
| Number of files | The maximum number of files that can be uploaded per business space. | 100,000 |
| Files per knowledge base | The maximum number of files per knowledge base. | Unstructured (document search): no hard limit; Structured (data query): 1 file (a single Excel or CSV) |
| Number of data tables | The maximum number of data tables per business space. | 1,000 |
| ADB-PG vector storage per table | The maximum row count and row size when using ADB-PG as the vector store. | Max rows per table: 10,000,000; Max row size: 100 KB |
File Upload
Supported Formats
Document search knowledge bases
| Format | Limit |
|---|---|
| pdf, docx, doc, wps, pptx, ppt | Max 150 MB; max 1,000 pages |
| txt, markdown, html | Max 10 MB |
| xlsx, xls | Max 10 MB, max 100,000 rows |
| png, jpg / jpeg, bmp, gif | Max 20 MB; image short side > 15 px, long side < 8,192 px, aspect ratio < 50 |
| Format | Limit |
|---|---|
| xlsx, xls | Max 10 MB; max 100,000 rows |
Frequency Limits
| API | Limit |
|---|---|
| API calls (per knowledge base) | Default 100 QPS |
| API calls (per account) | Default 15,000 QPM |
Throttling.RateQuota.