> ## Documentation Index
> Fetch the complete documentation index at: https://arizeai-433a7140.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# 07.13.2025: Experiments module in phoenix-client

> Available in Phoenix 11.7+

<Update label="07.13.2025">
  ## Experiments Module in phoenix-client

  <Card title="arize-phoenix-client" href="https://pypi.org/project/arize-phoenix-client/" icon="cube" horizontal>
    PyPI
  </Card>

  **New Features in Phoenix 11.7+:**

  * Added a new `experiments` property to both `Client` and `AsyncClient` for invoking experiment workflows.

  * Introduced `Experiments` and `AsyncExperiments` classes with `run_experiment` methods supporting **tasks**, **evaluators**, **dry-run mode**, and **metadata**.

  * Implemented `SyncExecutor` and `AsyncExecutor` classes for **concurrent execution** with built-in **progress bars**.

  * Added `RateLimiter` and `AdaptiveTokenBucket` for intelligent handling and throttling of **rate-limit errors**.

  **Bug Fixes:**

  * Fixed a typo in the `datasets.get_dataset_versions` docstring.

  **Enhancements:**

  * Introduced a `PhoenixException` base class and **refactored exception imports** for consistency.

  * Simplified rate limiter output by replacing `printif` with direct print statements.

  <Card title="feat: Add experiments module to phoenix-client by anticorrelator · Pull Request #8375 · Arize-ai/phoenix" icon="github" href="https://github.com/Arize-ai/phoenix/pull/8375" horizontal>
    GitHub
  </Card>
</Update>