diff --git a/src/modules/llms/server/gemini/gemini.models.ts b/src/modules/llms/server/gemini/gemini.models.ts
index 60f3f2a02..1ed56feb4 100644
--- a/src/modules/llms/server/gemini/gemini.models.ts
+++ b/src/modules/llms/server/gemini/gemini.models.ts
@@ -2,7 +2,7 @@ import type { GeminiWire_API_Models_List } from '~/modules/aix/server/dispatch/w
 
 import type { ModelDescriptionSchema } from '../llm.server.types';
 
-import { LLM_IF_GEM_CodeExecution, LLM_IF_HOTFIX_StripImages, LLM_IF_HOTFIX_StripSys0, LLM_IF_HOTFIX_Sys0ToUsr0, LLM_IF_OAI_Chat, LLM_IF_OAI_Fn, LLM_IF_OAI_Json, LLM_IF_OAI_Reasoning, LLM_IF_OAI_Vision, LLM_IF_Outputs_Audio, LLM_IF_Outputs_Image } from '~/common/stores/llms/llms.types';
+import { LLM_IF_GEM_CodeExecution, LLM_IF_HOTFIX_StripImages, LLM_IF_HOTFIX_StripSys0, LLM_IF_HOTFIX_Sys0ToUsr0, LLM_IF_OAI_Chat, LLM_IF_OAI_Fn, LLM_IF_OAI_Json, LLM_IF_OAI_Reasoning, LLM_IF_OAI_Vision, LLM_IF_Outputs_Audio, LLM_IF_Outputs_Image, LLM_IF_Outputs_NoText } from '~/common/stores/llms/llms.types';
 
 
 // dev options
@@ -38,7 +38,7 @@ const filterLyingModelNames: GeminiWire_API_Models_List.Model['name'][] = [
    - Latest stable     version  gemini-1.0-pro  <model>-<generation>-<variation>
    - Stable versions   gemini-1.0-pro-001       <model>-<generation>-<variation>-<version>
 
-   Gemini capabilities chart (updated 2025-04-17):
+   Gemini capabilities chart (updated 2025-05-27):
    - [table stakes] System instructions
    - JSON Mode, with optional JSON Schema
    - Adjustable Safety Settings
@@ -49,6 +49,8 @@ const filterLyingModelNames: GeminiWire_API_Models_List.Model['name'][] = [
    - Thinking / Reasoning with thinking budget
    - Audio generation
    - Live API
+   - Native Audio (dialog models)
+   - Text-to-Speech models
 */
 
 // Experimental Gemini models are Free of charge
@@ -57,7 +59,7 @@ const geminiExpFree: ModelDescriptionSchema['chatPrice'] = {
 };
 
 
-// Pricing based on https://ai.google.dev/pricing (May 20, 2025)
+// Pricing based on https://ai.google.dev/pricing (May 27, 2025)
 
 const gemini25ProPreviewPricing: ModelDescriptionSchema['chatPrice'] = {
   input: [{ upTo: 200000, price: 1.25 }, { upTo: null, price: 2.50 }],
@@ -74,6 +76,21 @@ const gemini25FlashPreviewThinkingPricing: ModelDescriptionSchema['chatPrice'] =
   output: 3.50, // thinking
 };
 
+const gemini25FlashNativeAudioPricing: ModelDescriptionSchema['chatPrice'] = {
+  input: 0.50, // text; audio/video is $3.00 but we don't differentiate yet
+  output: 2.00, // text; audio is $12.00 but we don't differentiate yet
+};
+
+const gemini25FlashPreviewTTSPricing: ModelDescriptionSchema['chatPrice'] = {
+  input: 0.50, // text input
+  // output: 10.00, // not ready for audio output yet, as of 2025-05-27
+};
+
+const gemini25ProPreviewTTSPricing: ModelDescriptionSchema['chatPrice'] = {
+  input: 1.00, // text input
+  // output: 20.00, // not ready for audio output yet, as of 2025-05-27
+};
+
 const gemini20FlashPricing: ModelDescriptionSchema['chatPrice'] = {
   input: 0.10, // text/image/video; audio is $0.70 but we don't differentiate yet
   output: 0.40,
@@ -149,7 +166,19 @@ const _knownGeminiModels: ({
     interfaces: [LLM_IF_OAI_Chat, LLM_IF_OAI_Vision, LLM_IF_OAI_Fn, LLM_IF_OAI_Json, LLM_IF_OAI_Reasoning, LLM_IF_GEM_CodeExecution],
     // parameterSpecs: [{ paramId: 'llmVndGeminiShowThoughts' }], // Gemini doesn't show thoughts anymore
     benchmark: { cbaElo: 1437 /* +1 because free */ },
-    hidden: true, //
+    hidden: true, // seems to be discouraged - still available, but cannot rely on it
+  },
+
+  // 2.5 Pro Preview TTS
+  {
+    id: 'models/gemini-2.5-pro-preview-tts',
+    labelOverride: 'Gemini 2.5 Pro Preview TTS (unsupported)',
+    isPreview: true,
+    chatPrice: gemini25ProPreviewTTSPricing,
+    interfaces: [LLM_IF_OAI_Chat, LLM_IF_OAI_Vision, LLM_IF_OAI_Fn, LLM_IF_OAI_Json, LLM_IF_Outputs_Audio, LLM_IF_Outputs_NoText],
+    benchmark: undefined, // TTS models are not benchmarkable
+    hidden: true, // audio outputs are unavailable as of 2025-05-27
+    _delete: true, // we are receiving API errors from Gemini - disabled for now as of 2025-05-27
   },
 
   // 2.5 Flash Preview
@@ -180,6 +209,36 @@ const _knownGeminiModels: ({
     hidden: true,
   },
 
+  // 2.5 Flash Preview TTS
+  {
+    id: 'models/gemini-2.5-flash-preview-tts',
+    labelOverride: 'Gemini 2.5 Flash Preview TTS (unsupported)',
+    isPreview: true,
+    chatPrice: gemini25FlashPreviewTTSPricing,
+    interfaces: [LLM_IF_OAI_Chat, LLM_IF_OAI_Vision, LLM_IF_OAI_Fn, LLM_IF_OAI_Json, LLM_IF_Outputs_Audio, LLM_IF_Outputs_NoText],
+    benchmark: undefined, // TTS models are not benchmarkable
+    hidden: true, // audio outputs are unavailable as of 2025-05-27
+    _delete: true, // we are receiving API errors from Gemini - disabled for now as of 2025-05-27
+  },
+
+  // 2.5 Flash Native Audio (Dialog and Thinking variants)
+  {
+    id: 'models/gemini-2.5-flash-preview-native-audio-dialog',
+    isPreview: true,
+    chatPrice: gemini25FlashNativeAudioPricing,
+    interfaces: [LLM_IF_OAI_Chat, LLM_IF_OAI_Vision, LLM_IF_OAI_Fn, LLM_IF_OAI_Json, LLM_IF_Outputs_Audio],
+    benchmark: undefined, // Native audio models are not benchmarkable
+    _delete: true, // dialog models unsupported as of 2025-05-27, but keeping the model for now
+  },
+  {
+    id: 'models/gemini-2.5-flash-exp-native-audio-thinking-dialog',
+    isPreview: true,
+    chatPrice: gemini25FlashNativeAudioPricing,
+    interfaces: [LLM_IF_OAI_Chat, LLM_IF_OAI_Vision, LLM_IF_OAI_Fn, LLM_IF_OAI_Json, LLM_IF_OAI_Reasoning, LLM_IF_Outputs_Audio],
+    benchmark: undefined, // Native audio models are not benchmarkable
+    _delete: true, // dialog models unsupported as of 2025-05-27, but keeping the model for now
+  },
+
 
   /// Generation 2.0