> ## Documentation Index
> Fetch the complete documentation index at: https://docs.topk.io/llms.txt
> Use this file to discover all available pages before exploring further.

# Limits

> Production limits for collections and datasets.

<Warning>
  These limits are subject to change as we continuously improve our system. If you expect to be blocked by any of these, please
  <a href="https://topk.io/contact"> let us know.</a>
</Warning>

## Collection Limits

| Scope                             | Production limit                |
| --------------------------------- | ------------------------------- |
| Max collections                   | Unlimited                       |
| Max documents (global)            | Unlimited                       |
| Max documents (per collection)    | 1B+                             |
| Write throughput (global)         | Unlimited                       |
| Write throughput (per collection) | \~70MB/s                        |
| Query throughput (global)         | Unlimited                       |
| Query throughput (per collection) | 1k+ queries/s                   |
| Max document size                 | 200KB                           |
| Max indexed fields                | Unlimited (up to document size) |
| Max dense vector dimension        | 16,384                          |
| Max sparse vector dimension       | 2^32-1                          |
| Max multi-vector dimension        | 1024                            |
| Max upsert request size           | 8MB                             |
| Recall                            | 95%+                            |

## Dataset Limits

| Scope                   | Production limit |
| ----------------------- | ---------------- |
| Max datasets            | Unlimited        |
| Max files (per dataset) | 100m             |
| Max PDF file size       | 512MB            |
| Max Markdown file size  | 512MB            |
| Max HTML file size      | 8MB              |
| Max image file size     | 8MB              |