diff --git a/docs/sources/setup-grafana/configure-grafana/feature-toggles/index.md b/docs/sources/setup-grafana/configure-grafana/feature-toggles/index.md
index af97de60f28..4df5f9856bd 100644
--- a/docs/sources/setup-grafana/configure-grafana/feature-toggles/index.md
+++ b/docs/sources/setup-grafana/configure-grafana/feature-toggles/index.md
@@ -49,7 +49,6 @@ Most [generally available](https://grafana.com/docs/release-life-cycle/#general-
 | `logRowsPopoverMenu`                   | Enable filtering menu displayed when text of a log line is selected                                                                                           | Yes                |
 | `alertingQueryOptimization`            | Optimizes eligible queries in order to reduce load on datasources                                                                                             |                    |
 | `onPremToCloudMigrations`              | Enable the Grafana Migration Assistant, which helps you easily migrate various on-prem resources to your Grafana Cloud stack.                                 | Yes                |
-| `groupToNestedTableTransformation`     | Enables the group to nested table transformation                                                                                                              | Yes                |
 | `newPDFRendering`                      | New implementation for the dashboard-to-PDF rendering                                                                                                         | Yes                |
 | `cloudWatchNewLabelParsing`            | Updates CloudWatch label parsing to be more accurate                                                                                                          | Yes                |
 | `pluginProxyPreserveTrailingSlash`     | Preserve plugin proxy trailing slash.                                                                                                                         |                    |
diff --git a/packages/grafana-data/src/types/featureToggles.gen.ts b/packages/grafana-data/src/types/featureToggles.gen.ts
index 2f5adb9c908..8dec833ef91 100644
--- a/packages/grafana-data/src/types/featureToggles.gen.ts
+++ b/packages/grafana-data/src/types/featureToggles.gen.ts
@@ -482,11 +482,6 @@ export interface FeatureToggles {
   */
   sqlExpressionsColumnAutoComplete?: boolean;
   /**
-  * Enables the group to nested table transformation
-  * @default true
-  */
-  groupToNestedTableTransformation?: boolean;
-  /**
   * New implementation for the dashboard-to-PDF rendering
   * @default true
   */
diff --git a/pkg/services/featuremgmt/registry.go b/pkg/services/featuremgmt/registry.go
index 0527f719b68..5b69846124d 100644
--- a/pkg/services/featuremgmt/registry.go
+++ b/pkg/services/featuremgmt/registry.go
@@ -817,14 +817,6 @@ var (
 			FrontendOnly: true,
 			Owner:        grafanaDataProSquad,
 		},
-		{
-			Name:         "groupToNestedTableTransformation",
-			Description:  "Enables the group to nested table transformation",
-			Stage:        FeatureStageGeneralAvailability,
-			FrontendOnly: true,
-			Owner:        grafanaDataProSquad,
-			Expression:   "true", // enabled by default,
-		},
 		{
 			Name:        "newPDFRendering",
 			Description: "New implementation for the dashboard-to-PDF rendering",
diff --git a/pkg/services/featuremgmt/toggles_gen.csv b/pkg/services/featuremgmt/toggles_gen.csv
index 79af6b273da..7194c4e20a6 100644
--- a/pkg/services/featuremgmt/toggles_gen.csv
+++ b/pkg/services/featuremgmt/toggles_gen.csv
@@ -107,7 +107,6 @@ useMultipleScopeNodesEndpoint,experimental,@grafana/grafana-operator-experience-
 logQLScope,privatePreview,@grafana/observability-logs,false,false,false
 sqlExpressions,preview,@grafana/grafana-datasources-core-services,false,false,false
 sqlExpressionsColumnAutoComplete,experimental,@grafana/datapro,false,false,true
-groupToNestedTableTransformation,GA,@grafana/datapro,false,false,true
 newPDFRendering,GA,@grafana/grafana-operator-experience-squad,false,false,false
 kubernetesAggregator,experimental,@grafana/grafana-app-platform-squad,false,true,false
 kubernetesAggregatorCapTokenAuth,experimental,@grafana/grafana-app-platform-squad,false,true,false
diff --git a/pkg/services/featuremgmt/toggles_gen.go b/pkg/services/featuremgmt/toggles_gen.go
index b16a8ebc10f..20242cbb7f4 100644
--- a/pkg/services/featuremgmt/toggles_gen.go
+++ b/pkg/services/featuremgmt/toggles_gen.go
@@ -439,10 +439,6 @@ const (
 	// Enables column autocomplete for SQL Expressions
 	FlagSqlExpressionsColumnAutoComplete = "sqlExpressionsColumnAutoComplete"
 
-	// FlagGroupToNestedTableTransformation
-	// Enables the group to nested table transformation
-	FlagGroupToNestedTableTransformation = "groupToNestedTableTransformation"
-
 	// FlagNewPDFRendering
 	// New implementation for the dashboard-to-PDF rendering
 	FlagNewPDFRendering = "newPDFRendering"
diff --git a/pkg/services/featuremgmt/toggles_gen.json b/pkg/services/featuremgmt/toggles_gen.json
index 9aa57adab69..6b3ccdd2a43 100644
--- a/pkg/services/featuremgmt/toggles_gen.json
+++ b/pkg/services/featuremgmt/toggles_gen.json
@@ -1963,6 +1963,7 @@
         "name": "groupToNestedTableTransformation",
         "resourceVersion": "1762442825881",
         "creationTimestamp": "2024-02-07T14:28:26Z",
+        "deletionTimestamp": "2025-11-12T14:33:44Z",
         "annotations": {
           "grafana.app/updatedTimestamp": "2025-11-06 15:27:05.88172 +0000 UTC"
         }
diff --git a/public/app/features/transformers/standardTransformers.ts b/public/app/features/transformers/standardTransformers.ts
index 3fdd629a6e4..14ff8eb3bb0 100644
--- a/public/app/features/transformers/standardTransformers.ts
+++ b/public/app/features/transformers/standardTransformers.ts
@@ -66,7 +66,7 @@ export const getStandardTransformers = (): TransformerRegistryItem[] => {
     getRegressionTransformerRegistryItem(),
     getPartitionByValuesTransformRegistryItem(),
     ...(config.featureToggles.formatString ? [getFormatStringTransformerRegistryItem()] : []),
-    ...(config.featureToggles.groupToNestedTableTransformation ? [getGroupToNestedTableTransformRegistryItem()] : []),
+    getGroupToNestedTableTransformRegistryItem(),
     getFormatTimeTransformerRegistryItem(),
     getTimeSeriesTableTransformRegistryItem(),
     getTransposeTransformerRegistryItem(),