diff --git a/specification/timeseriesinsights/data-plane/Microsoft.TimeSeriesInsights/preview/2018-11-01-preview/timeseriesinsights.json b/specification/timeseriesinsights/data-plane/Microsoft.TimeSeriesInsights/preview/2018-11-01-preview/timeseriesinsights.json
index 687811357947..54f991f6465a 100644
--- a/specification/timeseriesinsights/data-plane/Microsoft.TimeSeriesInsights/preview/2018-11-01-preview/timeseriesinsights.json
+++ b/specification/timeseriesinsights/data-plane/Microsoft.TimeSeriesInsights/preview/2018-11-01-preview/timeseriesinsights.json
@@ -2,7 +2,7 @@
   "swagger": "2.0",
   "info": {
     "title": "TimeSeriesInsightsClient",
-    "description": "Time Series Insights environment data plane client for PAYG (Preview L1 SKU) environments.",
+    "description": "Time Series Insights environment data plane client for Gen2 (Preview L1 SKU) environments.",
     "version": "2018-11-01-preview"
   },
   "x-ms-parameterized-host": {
@@ -188,7 +188,7 @@
           "ModelSettings"
         ],
         "operationId": "ModelSettings_Get",
-        "description": "Returns the model settings which includes model display name, Time Series ID properties and default type ID. Every pay-as-you-go environment has a model that is automatically created.",
+        "description": "Returns the model settings which includes model display name, Time Series ID properties and default type ID. Every Gen2 environment has a model that is automatically created.",
         "x-ms-examples": {
           "ModelSettingsGet": {
             "$ref": "./examples/ModelSettingsGet.json"
diff --git a/specification/timeseriesinsights/data-plane/Microsoft.TimeSeriesInsights/stable/2020-07-31/timeseriesinsights.json b/specification/timeseriesinsights/data-plane/Microsoft.TimeSeriesInsights/stable/2020-07-31/timeseriesinsights.json
index c957f645a35f..b808baee2b50 100644
--- a/specification/timeseriesinsights/data-plane/Microsoft.TimeSeriesInsights/stable/2020-07-31/timeseriesinsights.json
+++ b/specification/timeseriesinsights/data-plane/Microsoft.TimeSeriesInsights/stable/2020-07-31/timeseriesinsights.json
@@ -2,7 +2,7 @@
   "swagger": "2.0",
   "info": {
     "title": "TimeSeriesInsightsClient",
-    "description": "Time Series Insights environment data plane client for GA (GA L1 SKU) environments.",
+    "description": "Time Series Insights environment data plane client for Gen2 (GA L1 SKU) environments.",
     "version": "2020-07-31"
   },
   "x-ms-parameterized-host": {
@@ -188,7 +188,7 @@
           "ModelSettings"
         ],
         "operationId": "ModelSettings_Get",
-        "description": "Returns the model settings which includes model display name, Time Series ID properties and default type ID. Every pay-as-you-go environment has a model that is automatically created.",
+        "description": "Returns the model settings which includes model display name, Time Series ID properties and default type ID. Every Gen2 environment has a model that is automatically created.",
         "x-ms-examples": {
           "ModelSettingsGet": {
             "$ref": "./examples/ModelSettingsGet.json"