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

# Concurrency tiers

UnleashX provides concurrency tiers to support parallel call capacity.

## What is concurrency?

The number of calls your agents can handle simultaneously.

## Tiers (illustrative)

* Dev: up to 5 concurrent calls — ideal for testing
* Standard: up to 50 concurrent calls — pilots and small teams
* Scale: up to 200 concurrent calls — production workloads
* Enterprise: 200+ concurrent calls — custom SLAs and burst capacity

## Best practices

* Start low, observe metrics, then scale gradually
* Use queueing and backoff for bursty workloads
* Monitor average and p95 call durations to size tiers