diff --git a/courier-java-core/src/main/kotlin/com/courier/models/journeys/JourneyAiNode.kt b/courier-java-core/src/main/kotlin/com/courier/models/journeys/JourneyAiNode.kt
index a3a6f9f4..eabe404e 100644
--- a/courier-java-core/src/main/kotlin/com/courier/models/journeys/JourneyAiNode.kt
+++ b/courier-java-core/src/main/kotlin/com/courier/models/journeys/JourneyAiNode.kt
@@ -83,6 +83,11 @@ private constructor(
     fun conditions(): Optional<JourneyConditionsField> = conditions.getOptional("conditions")
 
     /**
+     * A supported AI model id. Requests with an unknown id may be rejected with a 400 that lists
+     * the supported ids. Supported ids: `claude-fable-5-1`, `claude-opus-5-5`, `claude-sonnet-5-5`,
+     * `claude-haiku-5-5`, `gpt-6-astra`, `gpt-5.5`, `gpt-5.4`, `gpt-6.1-sol`, `gpt-5.4-mini`,
+     * `gpt-5.4-nano`, `gpt-6-luna`.
+     *
      * @throws CourierInvalidDataException if the JSON field has an unexpected type (e.g. if the
      *   server responded with an unexpected value).
      */
@@ -276,6 +281,12 @@ private constructor(
         fun conditions(conditionNestedGroup: JourneyConditionNestedGroup) =
             conditions(JourneyConditionsField.ofConditionNestedGroup(conditionNestedGroup))
 
+        /**
+         * A supported AI model id. Requests with an unknown id may be rejected with a 400 that
+         * lists the supported ids. Supported ids: `claude-fable-5-1`, `claude-opus-5-5`,
+         * `claude-sonnet-5-5`, `claude-haiku-5-5`, `gpt-6-astra`, `gpt-5.5`, `gpt-5.4`,
+         * `gpt-6.1-sol`, `gpt-5.4-mini`, `gpt-5.4-nano`, `gpt-6-luna`.
+         */
         fun model(model: String) = model(JsonField.of(model))
 
         /**