# Pinecone Database limits overview

This page describes the limits and known limitations for Pinecone Database. Each topic has its own reference page:

- **[Rate limits](/guides/apis-database-limits-rate-limits)**: request-per-second, monthly usage, and model throughput limits that vary by pricing plan, plus the `429` errors you get when you exceed them.
- **[Object limits](/guides/apis-database-limits-object-limits)**: the number or size of projects, users, indexes, namespaces, storage, backups, and collections allowed by plan.
- **[Operation limits](/guides/apis-database-limits-operation-limits)**: fixed batch-size limits for upsert, import, query, fetch, and delete, plus metadata filter limits.
- **[Identifier limits](/guides/apis-database-limits-identifier-limits)**: maximum length and allowed characters for organization, project, index, namespace, and record identifiers.
- **[Known limitations](/guides/apis-known-limitations)**: index and serverless caveats, such as upsert consistency and metadata rules.

:::callout{intent="note"}
If a limit is blocking you, [contact Support](https://app.pinecone.io/organizations/-/settings/support/ticket) with details about your use case. Many limits can be raised on request, and Support can often suggest a workaround for the ones that can't.
:::

## Related pages

- [Rate limits](./apis-database-limits-rate-limits.md)
- [Object limits](./apis-database-limits-object-limits.md)
- [Operation limits](./apis-database-limits-operation-limits.md)
- [Identifier limits](./apis-database-limits-identifier-limits.md)
- [Known limitations](./apis-known-limitations.md)

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