diff --git a/src/apps/chat/components/composer/Composer.tsx b/src/apps/chat/components/composer/Composer.tsx
index df5ffa9f5..7b51702b8 100644
--- a/src/apps/chat/components/composer/Composer.tsx
+++ b/src/apps/chat/components/composer/Composer.tsx
@@ -658,6 +658,7 @@ export function Composer(props: {
 
   const showChatInReferenceTo = !!inReferenceTo?.length;
   const showChatExtras = isText && !showChatInReferenceTo && !assistantAbortible && composerQuickButton !== 'off';
+  const speechMayWork = browserSpeechRecognitionCapability().mayWork;
 
   const sendButtonVariant: VariantProp = (isAppend || (isMobile && isTextBeam)) ? 'outlined' : 'solid';
 
@@ -964,7 +965,7 @@ export function Composer(props: {
 
                 {/* [mobile] bottom-corner secondary button */}
                 {isMobile && (showChatExtras
-                    ? (composerQuickButton === 'call'
+                    ? (composerQuickButton === 'call' && speechMayWork
                       ? <ButtonCallMemo isMobile disabled={noConversation || noLLM} onClick={handleCallClicked} />
                       : <ButtonBeamMemo isMobile disabled={noConversation /*|| noLLM*/} color={beamButtonColor} hasContent={!!composeText} onClick={handleSendTextBeamClicked} />)
                     : isDraw
@@ -1055,8 +1056,8 @@ export function Composer(props: {
               {/* [desktop] secondary bottom-buttons (aligned to bottom for now, and mutually exclusive) */}
               {isDesktop && <Box sx={{ mt: 'auto', display: 'grid', gap: 1 }}>
 
-                {/* [desktop] Call secondary button */}
-                {showChatExtras && <ButtonCallMemo disabled={noConversation || noLLM || assistantAbortible} onClick={handleCallClicked} />}
+                {/* [desktop] Call secondary button - hidden when speech recognition is not available */}
+                {showChatExtras && speechMayWork && <ButtonCallMemo disabled={noConversation || noLLM || assistantAbortible} onClick={handleCallClicked} />}
 
                 {/* [desktop] Draw Options secondary button */}
                 {isDraw && <ButtonOptionsDraw onClick={handleDrawOptionsClicked} />}
diff --git a/src/common/components/speechrecognition/useSpeechRecognition.ts b/src/common/components/speechrecognition/useSpeechRecognition.ts
index ca556fa19..54a0336a4 100644
--- a/src/common/components/speechrecognition/useSpeechRecognition.ts
+++ b/src/common/components/speechrecognition/useSpeechRecognition.ts
@@ -18,13 +18,17 @@ let cachedCapability: CapabilityBrowserSpeechRecognition | null = null;
 
 export const browserSpeechRecognitionCapability = (): CapabilityBrowserSpeechRecognition => {
   if (!cachedCapability) {
-    const isApiAvailable = !!getSpeechRecognitionClass();
+    const isBraveBlocked = Is.Browser.Brave; // Brave exposes the API but silently blocks results
+    const isApiAvailable = !!getSpeechRecognitionClass() && !isBraveBlocked;
     const isDeviceNotSupported = false;
     cachedCapability = {
       mayWork: isApiAvailable && !isDeviceNotSupported,
       isApiAvailable,
       isDeviceNotSupported,
-      warnings: Is.OS.iOS ? ['Not tested on this browser/device.'] : [],
+      warnings: [
+        ...Is.OS.iOS ? ['Not tested on this browser/device.'] : [],
+        ...isBraveBlocked ? ['Speech recognition is not supported in Brave. Please use Chrome, Edge, or Safari.'] : [],
+      ],
     };
   }
   return cachedCapability;
diff --git a/src/common/util/pwaUtils.ts b/src/common/util/pwaUtils.ts
index c5af2f490..176ede929 100644
--- a/src/common/util/pwaUtils.ts
+++ b/src/common/util/pwaUtils.ts
@@ -11,6 +11,7 @@ const _safeUA = isBrowser ? window.navigator?.userAgent.toLowerCase() || '' : ''
 export const Is = {
   Desktop: !/mobile|android|iphone|ipad|ipod/.test(_safeUA),
   Browser: {
+    Brave: isBrowser && !!(navigator as any).brave,
     Chrome: _safeUA.includes('chrome') || _safeUA.includes('crios'),
     get Safari() {
       return _safeUA.includes('safari') && !this.Chrome && !_safeUA.includes('chromium');