diff --git a/api_webchat/controller.js b/api_webchat/controller.js
index c4ddf25c..ccec08d4 100644
--- a/api_webchat/controller.js
+++ b/api_webchat/controller.js
@@ -138,6 +138,7 @@ switch (llm) {
             google_gemini_api_key: prefs_api.google_gemini_api_key,
             google_gemini_model: prefs_api.google_gemini_model,
             google_gemini_system_instruction: prefs_api.google_gemini_system_instruction,
+            google_gemini_thinking_budget: prefs_api.google_gemini_thinking_budget,
             do_debug: prefs_api.do_debug,
             i18nStrings: i18nStrings
         });
diff --git a/js/mzta-special-commands.js b/js/mzta-special-commands.js
index 93685669..2734f2ce 100644
--- a/js/mzta-special-commands.js
+++ b/js/mzta-special-commands.js
@@ -66,7 +66,14 @@
                     chatgpt_model: prefs_default.chatgpt_model,
                     chatgpt_developer_messages: prefs_default.chatgpt_developer_messages,
                 });
-                this.worker.postMessage({ type: 'init', chatgpt_api_key: prefs_api.chatgpt_api_key, chatgpt_model: prefs_api.chatgpt_model, chatgpt_developer_messages: prefs_api.chatgpt_developer_messages, do_debug: this.do_debug, i18nStrings: ''});
+                this.worker.postMessage({
+                    type: 'init',
+                    chatgpt_api_key: prefs_api.chatgpt_api_key,
+                    chatgpt_model: prefs_api.chatgpt_model,
+                    chatgpt_developer_messages: prefs_api.chatgpt_developer_messages,
+                    do_debug: this.do_debug,
+                    i18nStrings: ''
+                });
                 break;
             }
             case "google_gemini_api": {
@@ -74,8 +81,17 @@
                     google_gemini_api_key: prefs_default.google_gemini_api_key,
                     google_gemini_model: prefs_default.google_gemini_model,
                     google_gemini_system_instruction: prefs_default.google_gemini_system_instruction,
+                    google_gemini_thinking_budget: prefs_default.google_gemini_thinking_budget,
+                });
+                this.worker.postMessage({
+                    type: 'init',
+                    google_gemini_api_key: prefs_api.google_gemini_api_key,
+                    google_gemini_model: prefs_api.google_gemini_model,
+                    google_gemini_system_instruction: prefs_api.google_gemini_system_instruction,
+                    google_gemini_thinking_budget: prefs_api.google_gemini_thinking_budget,
+                    do_debug: this.do_debug,
+                    i18nStrings: ''
                 });
-                this.worker.postMessage({ type: 'init', google_gemini_api_key: prefs_api.google_gemini_api_key, google_gemini_model: prefs_api.google_gemini_model, google_gemini_system_instruction: prefs_api.google_gemini_system_instruction, do_debug: this.do_debug, i18nStrings: ''});
                 break;
             }
             case "ollama_api": {
@@ -83,7 +99,13 @@
                     ollama_host: prefs_default.ollama_host,
                     ollama_model: prefs_default.ollama_model,
                 });
-                this.worker.postMessage({ type: 'init', ollama_host: prefs_api.ollama_host, ollama_model: prefs_api.ollama_model, do_debug: this.do_debug, i18nStrings: ''});
+                this.worker.postMessage({
+                    type: 'init',
+                    ollama_host: prefs_api.ollama_host,
+                    ollama_model: prefs_api.ollama_model,
+                    do_debug: this.do_debug,
+                    i18nStrings: ''
+                });
                 break;
             }
             case "openai_comp_api": {
@@ -95,7 +117,15 @@
                     openai_comp_chat_name: prefs_default.openai_comp_chat_name,
                     do_debug: prefs_default.do_debug,
                 });
-                this.worker.postMessage({ type: 'init', openai_comp_host: prefs_api.openai_comp_host, openai_comp_model: prefs_api.openai_comp_model, openai_comp_api_key: prefs_api.openai_comp_api_key, openai_comp_use_v1: prefs_api.openai_comp_use_v1, do_debug: this.do_debug, i18nStrings: ''});
+                this.worker.postMessage({
+                    type: 'init',
+                    openai_comp_host: prefs_api.openai_comp_host,
+                    openai_comp_model: prefs_api.openai_comp_model,
+                    openai_comp_api_key: prefs_api.openai_comp_api_key,
+                    openai_comp_use_v1: prefs_api.openai_comp_use_v1,
+                    do_debug: this.do_debug,
+                    i18nStrings: ''
+                });
                 break;
             }
             case "anthropic_api": {
@@ -105,7 +135,15 @@
                     anthropic_version: prefs_default.anthropic_version,
                     anthropic_max_tokens: prefs_default.anthropic_max_tokens,
                 });
-                this.worker.postMessage({ type: 'init', anthropic_api_key: prefs_api.anthropic_api_key, anthropic_model: prefs_api.anthropic_model, anthropic_version: prefs_api.anthropic_version, anthropic_max_tokens: prefs_api.anthropic_max_tokens, do_debug: this.do_debug, i18nStrings: ''});
+                this.worker.postMessage({
+                    type: 'init',
+                    anthropic_api_key: prefs_api.anthropic_api_key,
+                    anthropic_model: prefs_api.anthropic_model,
+                    anthropic_version: prefs_api.anthropic_version,
+                    anthropic_max_tokens: prefs_api.anthropic_max_tokens,
+                    do_debug: this.do_debug,
+                    i18nStrings: ''
+                });
                 break;
             }
         }
diff --git a/js/workers/model-worker-google_gemini.js b/js/workers/model-worker-google_gemini.js
index 67e69c14..cb961a66 100644
--- a/js/workers/model-worker-google_gemini.js
+++ b/js/workers/model-worker-google_gemini.js
@@ -42,6 +42,7 @@ self.onmessage = async function(event) {
             apiKey: google_gemini_api_key,
             model: google_gemini_model,
             system_instruction: event.data.google_gemini_system_instruction,
+            thinking_budget: event.data.google_gemini_thinking_budget,
             stream: true
         });
         do_debug = event.data.do_debug;
diff --git a/options/mzta-options-default.js b/options/mzta-options-default.js
index 93f77836..94d7ebec 100644
--- a/options/mzta-options-default.js
+++ b/options/mzta-options-default.js
@@ -45,7 +45,7 @@ export const prefs_default = {
     google_gemini_api_key: '',
     google_gemini_model: '',
     google_gemini_system_instruction: '',
-    google_gemini_thinking_budget: 0,
+    google_gemini_thinking_budget: '',
     anthropic_api_key: '',
     anthropic_model: '',
     anthropic_version: '2023-06-01',