feat: Continuous Tuning

Google APIs · copybara-github · commit d9bfa3b37fe3 · 2025-10-17T16:41:28.000-07:00
docs: Updated docs for related fields

PiperOrigin-RevId: 820872021
diff --git a/google/cloud/aiplatform/v1/tuning_job.proto b/google/cloud/aiplatform/v1/tuning_job.proto
@@ -45,6 +45,9 @@ message TuningJob {
     // The base model that is being tuned. See [Supported
     // models](https://cloud.google.com/vertex-ai/generative-ai/docs/model-reference/tuning#supported_models).
     string base_model = 4;
+
+    // The pre-tuned model for continuous tuning.
+    PreTunedModel pre_tuned_model = 31;
   }
 
   oneof tuning_spec {
@@ -61,7 +64,10 @@ message TuningJob {
 
   // Optional. The display name of the
   // [TunedModel][google.cloud.aiplatform.v1.Model]. The name can be up to 128
-  // characters long and can consist of any UTF-8 characters.
+  // characters long and can consist of any UTF-8 characters. For continuous
+  // tuning, tuned_model_display_name will by default use the same display name
+  // as the pre-tuned model. If a new display name is provided, the tuning job
+  // will create a new model instead of a new version.
   string tuned_model_display_name = 2 [(google.api.field_behavior) = OPTIONAL];
 
   // Optional. The description of the
@@ -147,7 +153,18 @@ message TuningJob {
 // this [TuningJob][google.cloud.aiplatform.v1.TuningJob].
 message TunedModel {
   // Output only. The resource name of the TunedModel. Format:
-  // `projects/{project}/locations/{location}/models/{model}`.
+  //
+  // `projects/{project}/locations/{location}/models/{model}@{version_id}`
+  //
+  // When tuning from a base model, the version ID will be 1.
+  //
+  // For continuous tuning, if the provided tuned_model_display_name is set and
+  // different from parent model's display name, the tuned model will have a new
+  // parent model with version 1. Otherwise the version id will be incremented
+  // by 1 from the last version ID in the parent model. E.g.,
+  //
+  // `projects/{project}/locations/{location}/models/{model}@{last_version_id +
+  // 1}`
   string model = 1 [
     (google.api.field_behavior) = OUTPUT_ONLY,
     (google.api.resource_reference) = {
@@ -373,3 +390,28 @@ message TunedModelCheckpoint {
   // `projects/{project}/locations/{location}/endpoints/{endpoint}`.
   string endpoint = 4;
 }
+
+// A pre-tuned model for continuous tuning.
+message PreTunedModel {
+  // The resource name of the Model.
+  // E.g., a model resource name with a specified version id or alias:
+  //
+  // `projects/{project}/locations/{location}/models/{model}@{version_id}`
+  //
+  // `projects/{project}/locations/{location}/models/{model}@{alias}`
+  //
+  // Or, omit the version id to use the default version:
+  //
+  // `projects/{project}/locations/{location}/models/{model}`
+  string tuned_model_name = 1 [(google.api.resource_reference) = {
+    type: "aiplatform.googleapis.com/Model"
+  }];
+
+  // Optional. The source checkpoint id. If not specified, the default
+  // checkpoint will be used.
+  string checkpoint_id = 2 [(google.api.field_behavior) = OPTIONAL];
+
+  // Output only. The name of the base model this
+  // [PreTunedModel][google.cloud.aiplatform.v1.PreTunedModel] was tuned from.
+  string base_model = 3 [(google.api.field_behavior) = OUTPUT_ONLY];
+}
