diff --git a/application/src/main/java/org/thingsboard/server/service/ai/Langchain4jChatModelConfigurerImpl.java b/application/src/main/java/org/thingsboard/server/service/ai/Langchain4jChatModelConfigurerImpl.java
index 2cb6c2097f..c631f1a3d0 100644
--- a/application/src/main/java/org/thingsboard/server/service/ai/Langchain4jChatModelConfigurerImpl.java
+++ b/application/src/main/java/org/thingsboard/server/service/ai/Langchain4jChatModelConfigurerImpl.java
@@ -70,6 +70,7 @@ class Langchain4jChatModelConfigurerImpl implements Langchain4jChatModelConfigur
     @Override
     public ChatModel configureChatModel(OpenAiChatModelConfig chatModelConfig) {
         return OpenAiChatModel.builder()
+                .baseUrl(chatModelConfig.providerConfig().baseUrl())
                 .apiKey(chatModelConfig.providerConfig().apiKey())
                 .modelName(chatModelConfig.modelId())
                 .temperature(chatModelConfig.temperature())
diff --git a/application/src/test/java/org/thingsboard/server/controller/AiModelControllerTest.java b/application/src/test/java/org/thingsboard/server/controller/AiModelControllerTest.java
index ae2972b0cc..53648af441 100644
--- a/application/src/test/java/org/thingsboard/server/controller/AiModelControllerTest.java
+++ b/application/src/test/java/org/thingsboard/server/controller/AiModelControllerTest.java
@@ -104,7 +104,10 @@ public class AiModelControllerTest extends AbstractControllerTest {
         var model = doPost("/api/ai/model", constructValidOpenAiModel("Test model"), AiModel.class);
 
         var newModelConfig = OpenAiChatModelConfig.builder()
-                .providerConfig(new OpenAiProviderConfig("test-api-key-updated"))
+                .providerConfig(OpenAiProviderConfig.builder()
+                        .baseUrl(OpenAiProviderConfig.OPENAI_OFFICIAL_BASE_URL)
+                        .apiKey("test-api-key-updated")
+                        .build())
                 .modelId("o4-mini")
                 .temperature(0.2)
                 .topP(0.4)
@@ -270,7 +273,7 @@ public class AiModelControllerTest extends AbstractControllerTest {
                 .tenantId(tenantId)
                 .name("Test model 1")
                 .configuration(OpenAiChatModelConfig.builder()
-                        .providerConfig(new OpenAiProviderConfig("test-api-key"))
+                        .providerConfig(OpenAiProviderConfig.builder().apiKey("test-api-key").build())
                         .modelId("o3-pro")
                         .build())
                 .build(), AiModel.class);
@@ -594,7 +597,10 @@ public class AiModelControllerTest extends AbstractControllerTest {
 
     private AiModel constructValidOpenAiModel(String name) {
         var modelConfig = OpenAiChatModelConfig.builder()
-                .providerConfig(new OpenAiProviderConfig("test-api-key"))
+                .providerConfig(OpenAiProviderConfig.builder()
+                        .baseUrl(OpenAiProviderConfig.OPENAI_OFFICIAL_BASE_URL)
+                        .apiKey("test-api-key")
+                        .build())
                 .modelId("gpt-4o")
                 .temperature(0.5)
                 .topP(0.3)
diff --git a/application/src/test/java/org/thingsboard/server/service/entitiy/ai/DefaultTbAiModelServiceTest.java b/application/src/test/java/org/thingsboard/server/service/entitiy/ai/DefaultTbAiModelServiceTest.java
index 2321446b44..b6be136f82 100644
--- a/application/src/test/java/org/thingsboard/server/service/entitiy/ai/DefaultTbAiModelServiceTest.java
+++ b/application/src/test/java/org/thingsboard/server/service/entitiy/ai/DefaultTbAiModelServiceTest.java
@@ -253,7 +253,7 @@ class DefaultTbAiModelServiceTest {
 
     private static AiModelConfig constructValidOpenAiModelConfig() {
         return OpenAiChatModelConfig.builder()
-                .providerConfig(new OpenAiProviderConfig("test-api-key"))
+                .providerConfig(OpenAiProviderConfig.builder().apiKey("test-api-key").build())
                 .modelId("gpt-4o")
                 .temperature(0.5)
                 .topP(0.3)
diff --git a/application/src/test/java/org/thingsboard/server/service/resource/sql/BaseTbResourceServiceTest.java b/application/src/test/java/org/thingsboard/server/service/resource/sql/BaseTbResourceServiceTest.java
index da20b9489c..a146730465 100644
--- a/application/src/test/java/org/thingsboard/server/service/resource/sql/BaseTbResourceServiceTest.java
+++ b/application/src/test/java/org/thingsboard/server/service/resource/sql/BaseTbResourceServiceTest.java
@@ -682,7 +682,10 @@ public class BaseTbResourceServiceTest extends AbstractControllerTest {
 
     private AiModel constructValidOpenAiModel(String name) {
         var modelConfig = OpenAiChatModelConfig.builder()
-                .providerConfig(new OpenAiProviderConfig("test-api-key"))
+                .providerConfig(OpenAiProviderConfig.builder()
+                        .baseUrl(OpenAiProviderConfig.OPENAI_OFFICIAL_BASE_URL)
+                        .apiKey("test-api-key")
+                        .build())
                 .modelId("gpt-4o")
                 .temperature(0.5)
                 .topP(0.3)
@@ -699,6 +702,7 @@ public class BaseTbResourceServiceTest extends AbstractControllerTest {
                 .configuration(modelConfig)
                 .build();
     }
+
     @Test
     public void testFindTenantResourcesByTenantId() throws Exception {
         loginSysAdmin();
diff --git a/common/data/src/main/java/org/thingsboard/server/common/data/ai/provider/OpenAiProviderConfig.java b/common/data/src/main/java/org/thingsboard/server/common/data/ai/provider/OpenAiProviderConfig.java
index 09ffda837b..f7864db6e3 100644
--- a/common/data/src/main/java/org/thingsboard/server/common/data/ai/provider/OpenAiProviderConfig.java
+++ b/common/data/src/main/java/org/thingsboard/server/common/data/ai/provider/OpenAiProviderConfig.java
@@ -15,8 +15,32 @@
  */
 package org.thingsboard.server.common.data.ai.provider;
 
-import jakarta.validation.constraints.NotNull;
+import com.fasterxml.jackson.annotation.JsonIgnore;
+import jakarta.validation.constraints.AssertTrue;
+import lombok.Builder;
+import org.apache.commons.lang3.StringUtils;
 
+import java.util.Objects;
+
+@Builder
 public record OpenAiProviderConfig(
-        @NotNull String apiKey
-) implements AiProviderConfig {}
+        String baseUrl,
+        String apiKey
+) implements AiProviderConfig {
+
+    public static final String OPENAI_OFFICIAL_BASE_URL = "https://api.openai.com/v1";
+
+    public OpenAiProviderConfig {
+        baseUrl = Objects.requireNonNullElse(baseUrl, OPENAI_OFFICIAL_BASE_URL);
+    }
+
+    @JsonIgnore
+    @AssertTrue(message = "API key is required when using the official OpenAI API")
+    public boolean isValid() {
+        if (baseUrl.equals(OPENAI_OFFICIAL_BASE_URL)) {
+            return StringUtils.isNotBlank(apiKey);
+        }
+        return true;
+    }
+
+}
diff --git a/rule-engine/rule-engine-components/src/test/java/org/thingsboard/rule/engine/ai/TbAiNodeTest.java b/rule-engine/rule-engine-components/src/test/java/org/thingsboard/rule/engine/ai/TbAiNodeTest.java
index c5b7f2c44b..a786cdd536 100644
--- a/rule-engine/rule-engine-components/src/test/java/org/thingsboard/rule/engine/ai/TbAiNodeTest.java
+++ b/rule-engine/rule-engine-components/src/test/java/org/thingsboard/rule/engine/ai/TbAiNodeTest.java
@@ -129,7 +129,10 @@ class TbAiNodeTest {
         config = new TbAiNodeConfiguration();
 
         modelConfig = OpenAiChatModelConfig.builder()
-                .providerConfig(new OpenAiProviderConfig("test-api-key"))
+                .providerConfig(OpenAiProviderConfig.builder()
+                        .baseUrl(OpenAiProviderConfig.OPENAI_OFFICIAL_BASE_URL)
+                        .apiKey("test-api-key")
+                        .build())
                 .modelId("gpt-4o")
                 .temperature(0.5)
                 .topP(0.3)
diff --git a/ui-ngx/src/app/modules/home/components/ai-model/ai-model-dialog.component.html b/ui-ngx/src/app/modules/home/components/ai-model/ai-model-dialog.component.html
index abfe8500b4..44fe9dcda7 100644
--- a/ui-ngx/src/app/modules/home/components/ai-model/ai-model-dialog.component.html
+++ b/ui-ngx/src/app/modules/home/components/ai-model/ai-model-dialog.component.html
@@ -116,14 +116,24 @@
                 <input matInput formControlName="serviceVersion">
               </mat-form-field>
             }
+            @if (providerFieldsList.includes('baseUrl')) {
+              <mat-form-field class="mat-block flex-1" appearance="outline">
+                <mat-label translate>ai-models.baseurl</mat-label>
+                <input required matInput formControlName="baseUrl">
+                <mat-error *ngIf="aiModelForms.get('configuration.providerConfig.baseUrl').hasError('required') ||
+                  aiModelForms.get('configuration.providerConfig.baseUrl').hasError('pattern')">
+                  {{ 'ai-models.baseurl-required' | translate }}
+                </mat-error>
+              </mat-form-field>
+            }
             @if (providerFieldsList.includes('apiKey')) {
               <mat-form-field class="mat-block flex-1" appearance="outline">
                 <mat-label translate>ai-models.api-key</mat-label>
-                <input type="password" required matInput formControlName="apiKey" autocomplete="new-password">
+                <input type="password" matInput formControlName="apiKey" [required]="apiKeyRequired" autocomplete="new-password">
                 <tb-toggle-password matSuffix></tb-toggle-password>
                 <mat-error *ngIf="aiModelForms.get('configuration.providerConfig.apiKey').hasError('required') ||
                   aiModelForms.get('configuration.providerConfig.apiKey').hasError('pattern')">
-                  {{ 'ai-models.api-key-required' | translate }}
+                  {{ ( provider === aiProvider.OPENAI ? 'ai-models.api-key-open-ai-required' : 'ai-models.api-key-required') | translate }}
                 </mat-error>
               </mat-form-field>
             }
@@ -158,16 +168,6 @@
                 </mat-error>
               </mat-form-field>
             }
-            @if (providerFieldsList.includes('baseUrl')) {
-              <mat-form-field class="mat-block flex-1" appearance="outline">
-                <mat-label translate>ai-models.baseurl</mat-label>
-                <input required matInput formControlName="baseUrl">
-                <mat-error *ngIf="aiModelForms.get('configuration.providerConfig.baseUrl').hasError('required') ||
-                  aiModelForms.get('configuration.providerConfig.baseUrl').hasError('pattern')">
-                  {{ 'ai-models.baseurl-required' | translate }}
-                </mat-error>
-              </mat-form-field>
-            }
             @if (provider === aiProvider.OLLAMA) {
               <div class="tb-form-panel stroked no-gap no-padding-bottom mb-4" formGroupName="auth">
                 <div class="flex flex-row items-center justify-between xs:flex-col xs:items-start xs:gap-3">
diff --git a/ui-ngx/src/app/modules/home/components/ai-model/ai-model-dialog.component.ts b/ui-ngx/src/app/modules/home/components/ai-model/ai-model-dialog.component.ts
index 9d0d28e627..02f18e60b5 100644
--- a/ui-ngx/src/app/modules/home/components/ai-model/ai-model-dialog.component.ts
+++ b/ui-ngx/src/app/modules/home/components/ai-model/ai-model-dialog.component.ts
@@ -74,6 +74,9 @@ export class AIModelDialogComponent extends DialogComponent<AIModelDialogCompone
 
   authenticationHint: string;
 
+  apiKeyRequired = true;
+  private readonly openAiDefaultBaseUrl = 'https://api.openai.com/v1';
+
   constructor(protected store: Store<AppState>,
               protected router: Router,
               protected dialogRef: MatDialogRef<AIModelDialogComponent, AiModel>,
@@ -107,7 +110,7 @@ export class AIModelDialogComponent extends DialogComponent<AIModelDialogCompone
           region: [this.data.AIModel ? this.data.AIModel.configuration.providerConfig?.region : '', [Validators.required, Validators.pattern(/.*\S.*/)]],
           accessKeyId: [this.data.AIModel ? this.data.AIModel.configuration.providerConfig?.accessKeyId : '', [Validators.required, Validators.pattern(/.*\S.*/)]],
           secretAccessKey: [this.data.AIModel ? this.data.AIModel.configuration.providerConfig?.secretAccessKey : '', [Validators.required, Validators.pattern(/.*\S.*/)]],
-          baseUrl: [this.data.AIModel ? this.data.AIModel.configuration.providerConfig?.baseUrl : '', [Validators.required, Validators.pattern(/.*\S.*/)]],
+          baseUrl: [this.data.AIModel ? this.data.AIModel.configuration.providerConfig?.baseUrl : this.openAiDefaultBaseUrl, [Validators.required, Validators.pattern(/.*\S.*/)]],
           auth: this.fb.group({
             type: [this.data.AIModel?.configuration?.providerConfig?.auth?.type ?? AuthenticationType.NONE],
             username: [this.data.AIModel?.configuration?.providerConfig?.auth?.username ?? '', [Validators.required, Validators.pattern(/.*\S.*/)]],
@@ -133,6 +136,18 @@ export class AIModelDialogComponent extends DialogComponent<AIModelDialogCompone
       this.aiModelForms.get('configuration.modelId').reset('');
       this.aiModelForms.get('configuration.providerConfig').reset({});
       this.updateValidation(provider);
+      if (provider === AiProvider.OPENAI) {
+        this.aiModelForms.get('configuration.providerConfig.baseUrl').patchValue(this.openAiDefaultBaseUrl, {emitEvent: false});
+        this.updateApiKeyValidatorForOpenAIProvider(this.openAiDefaultBaseUrl);
+      }
+    });
+
+    this.aiModelForms.get('configuration.providerConfig.baseUrl').valueChanges.pipe(
+      takeUntilDestroyed()
+    ).subscribe((url: string) => {
+      if (this.provider === AiProvider.OPENAI) {
+        this.updateApiKeyValidatorForOpenAIProvider(url);
+      }
     });
 
     this.aiModelForms.get('configuration.providerConfig.auth.type').valueChanges.pipe(
@@ -161,6 +176,17 @@ export class AIModelDialogComponent extends DialogComponent<AIModelDialogCompone
       );
   }
 
+  private updateApiKeyValidatorForOpenAIProvider(url: string) {
+    if (url !== this.openAiDefaultBaseUrl) {
+      this.aiModelForms.get('configuration.providerConfig.apiKey').removeValidators(Validators.required);
+      this.apiKeyRequired = false;
+    } else {
+      this.aiModelForms.get('configuration.providerConfig.apiKey').addValidators(Validators.required);
+      this.apiKeyRequired = true;
+    }
+    this.aiModelForms.get('configuration.providerConfig.apiKey').updateValueAndValidity({emitEvent: false});
+  }
+
   private getAuthenticationHint(type: AuthenticationType) {
     if (type === AuthenticationType.BASIC) {
       this.authenticationHint = this.translate.instant('ai-models.authentication-basic-hint');
diff --git a/ui-ngx/src/app/shared/models/ai-model.models.ts b/ui-ngx/src/app/shared/models/ai-model.models.ts
index b0a88d076e..09795b3068 100644
--- a/ui-ngx/src/app/shared/models/ai-model.models.ts
+++ b/ui-ngx/src/app/shared/models/ai-model.models.ts
@@ -116,7 +116,7 @@ export const AiModelMap = new Map<AiProvider, { modelList: string[], providerFie
         'gpt-4o',
         'gpt-4o-mini',
       ],
-      providerFieldsList: ['apiKey'],
+      providerFieldsList: ['baseUrl', 'apiKey'],
       modelFieldsList: ['temperature', 'topP', 'frequencyPenalty', 'presencePenalty', 'maxOutputTokens'],
     },
   ],
diff --git a/ui-ngx/src/assets/locale/locale.constant-en_US.json b/ui-ngx/src/assets/locale/locale.constant-en_US.json
index d39078f56a..78eec9a30a 100644
--- a/ui-ngx/src/assets/locale/locale.constant-en_US.json
+++ b/ui-ngx/src/assets/locale/locale.constant-en_US.json
@@ -1120,6 +1120,7 @@
         "provider": "Provider",
         "api-key": "API key",
         "api-key-required": "API key is required.",
+        "api-key-open-ai-required": "API key is required when using the official OpenAI API.",
         "project-id": "Project ID",
         "project-id-required": "Project ID is required",
         "location": "Location",