# Available ASR Engines

The following ASR engines are currently available for use:

* Nuance OSR 3.0
* Nuance Recognizer 9
* Nuance Recognizer 11 (beta\*)

{% hint style="warning" %}
**\* BETA FEATURE:**

The Recognizer 11 ASR engine is currently available as a **beta feature**. Further testing and updates may take place while Recognizer 11 is in beta.

We encourage you to share feedback at **<beta@plumgroup.com>**.
{% endhint %}


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://docs.plumvoice.com/dev/developer-reference/available-asr-engines.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.