diff --git a/website/docs/usage/training.md b/website/docs/usage/training.md
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@@ -384,7 +384,6 @@ that reference this variable.
 
 ### Model architectures {#model-architectures}
 
-<!-- TODO: refer to architectures API: /api/architectures -->
 A **model architecture** is a function that wires up a Thinc `Model` instance,
 which you can then use in a component or as a layer of a larger network. You
 can use Thinc as a thin wrapper around frameworks such as PyTorch, Tensorflow