Version Pinning

How Reducto model versioning works and how to pin versions

Reducto continuously improves the models powering document processing. This page explains how versioning works and how to control which version you use. For the current status of each model version, see Model Versions.

How Versioning Works

Each model version progresses through four stages:

1. Alpha: New version available for opt-in testing via the alpha config
2. Default: Automatically used for all requests
3. Deprecated: Old default, still accessible via alpha config
4. Removed: No longer available

Requesting an unknown or removed version returns an error listing the available versions.

Pinning a Version

To pin a specific version, pass it in your request’s settings.alpha config:

Python

result = client.parse.run(
    input="https://example.com/document.pdf",
    settings={
        "alpha": {
            "layout_model": "v2"
        }
    }
)

Model versioning only changes processing behavior. It does not break the API contract. If a pinned version is unknown or has been removed, the request returns an error listing the available versions.