diff --git a/app/javascript/dashboard/api/captain/assistant.js b/app/javascript/dashboard/api/captain/assistant.js
index 1fc17798d..5af6110ab 100644
--- a/app/javascript/dashboard/api/captain/assistant.js
+++ b/app/javascript/dashboard/api/captain/assistant.js
@@ -26,15 +26,18 @@ class CaptainAssistant extends ApiClient {
     });
   }
 
-  getStats({ assistantId, range }) {
-    return axios.get(`${this.url}/${assistantId}/stats`, {
+  getStats({ assistantId, range, signal }) {
+    const requestConfig = {
       params: { range, timezone_offset: getTimezoneOffset() },
-    });
+    };
+    if (signal) requestConfig.signal = signal;
+
+    return axios.get(`${this.url}/${assistantId}/stats`, requestConfig);
   }
 
-  getSummary({ assistantId, range }) {
+  getSummary({ assistantId, range, stats }) {
     return axios.get(`${this.url}/${assistantId}/summary`, {
-      params: { range, timezone_offset: getTimezoneOffset() },
+      params: { range, timezone_offset: getTimezoneOffset(), stats },
     });
   }
 
diff --git a/app/javascript/dashboard/components-next/captain/pageComponents/overview/MetricCard.vue b/app/javascript/dashboard/components-next/captain/pageComponents/overview/MetricCard.vue
index cf66a0a2f..9a68b71ce 100644
--- a/app/javascript/dashboard/components-next/captain/pageComponents/overview/MetricCard.vue
+++ b/app/javascript/dashboard/components-next/captain/pageComponents/overview/MetricCard.vue
@@ -9,6 +9,7 @@ const props = defineProps({
   // null = neutral, true = good direction, false = bad direction
   trendGood: { type: Boolean, default: null },
   clickable: { type: Boolean, default: false },
+  loading: { type: Boolean, default: false },
 });
 
 const emit = defineEmits(['click']);
@@ -45,7 +46,11 @@ const onActivate = () => {
         class="transition-opacity opacity-0 cursor-help i-lucide-info size-3.5 text-n-slate-10 group-hover:opacity-100"
       />
     </div>
-    <div class="flex items-end justify-between gap-2">
+    <div v-if="loading" class="flex items-end justify-between gap-2">
+      <div class="w-20 rounded h-9 bg-n-slate-3 animate-pulse" />
+      <div class="w-10 h-5 rounded bg-n-slate-3 animate-pulse" />
+    </div>
+    <div v-else class="flex items-end justify-between gap-2">
       <span
         class="text-3xl font-semibold tracking-tight tabular-nums text-n-slate-12"
       >
diff --git a/app/javascript/dashboard/components-next/captain/pageComponents/overview/WelcomeCard.vue b/app/javascript/dashboard/components-next/captain/pageComponents/overview/WelcomeCard.vue
index df336a7e4..5e868956f 100644
--- a/app/javascript/dashboard/components-next/captain/pageComponents/overview/WelcomeCard.vue
+++ b/app/javascript/dashboard/components-next/captain/pageComponents/overview/WelcomeCard.vue
@@ -9,6 +9,10 @@ const props = defineProps({
     type: String,
     default: '30',
   },
+  stats: {
+    type: Object,
+    default: null,
+  },
 });
 
 const route = useRoute();
@@ -20,22 +24,41 @@ const assistantId = computed(() => route.params.assistantId);
 const welcomeMarkdown = ref('');
 const isLoading = ref(false);
 
+// Increments on every fetch so a slow response for a superseded
+// range/stats/assistant can't overwrite the latest request's state.
+let fetchToken = 0;
+
 const fetchSummary = async () => {
+  fetchToken += 1;
+  const token = fetchToken;
+
+  if (!props.stats) {
+    welcomeMarkdown.value = '';
+    isLoading.value = false;
+    return;
+  }
+
   isLoading.value = true;
+  let message = '';
   try {
     const { data } = await CaptainAssistant.getSummary({
       assistantId: assistantId.value,
       range: props.range,
+      stats: props.stats,
     });
-    welcomeMarkdown.value = data.message ?? '';
+    message = data.message ?? '';
   } catch {
-    welcomeMarkdown.value = '';
-  } finally {
-    isLoading.value = false;
+    message = '';
   }
+
+  if (token !== fetchToken) return;
+  welcomeMarkdown.value = message;
+  isLoading.value = false;
 };
 
-watch([() => props.range, assistantId], fetchSummary, { immediate: true });
+watch([() => props.range, () => props.stats, assistantId], fetchSummary, {
+  immediate: true,
+});
 
 // Render through the shared markdown formatter (html disabled, so it is safe)
 // used everywhere else for Captain output, instead of a bespoke parser. It
diff --git a/app/javascript/dashboard/routes/dashboard/captain/assistants/overview/Index.vue b/app/javascript/dashboard/routes/dashboard/captain/assistants/overview/Index.vue
index 29411e56d..ba31bc05d 100644
--- a/app/javascript/dashboard/routes/dashboard/captain/assistants/overview/Index.vue
+++ b/app/javascript/dashboard/routes/dashboard/captain/assistants/overview/Index.vue
@@ -1,5 +1,5 @@
 <script setup>
-import { computed, ref, watch } from 'vue';
+import { computed, onUnmounted, ref, watch } from 'vue';
 import { useI18n } from 'vue-i18n';
 import { useRoute } from 'vue-router';
 import { FEATURE_FLAGS } from 'dashboard/featureFlags';
@@ -27,19 +27,49 @@ const selectedRange = ref('this_month');
 
 const assistantId = computed(() => route.params.assistantId);
 const stats = ref(null);
+const isFetching = ref(false);
+
+// Increments on every fetch so a response (or retry) from a superseded
+// range/assistant can't clobber the latest request's state.
+let fetchToken = 0;
+let abortController = null;
 
 const fetchStats = async () => {
-  try {
-    const { data } = await CaptainAssistant.getStats({
+  fetchToken += 1;
+  const token = fetchToken;
+  abortController?.abort();
+  abortController = new AbortController();
+  const { signal } = abortController;
+  stats.value = null;
+  isFetching.value = true;
+
+  const requestStats = () =>
+    CaptainAssistant.getStats({
       assistantId: assistantId.value,
       range: selectedRange.value,
+      signal,
     });
-    stats.value = data;
+
+  let data = null;
+  try {
+    ({ data } = await requestStats());
   } catch {
-    stats.value = null;
+    // One silent retry before giving up, unless the request was aborted.
+    try {
+      if (token === fetchToken && !signal.aborted)
+        ({ data } = await requestStats());
+    } catch {
+      data = null;
+    }
   }
+
+  if (token !== fetchToken || signal.aborted) return;
+  stats.value = data;
+  isFetching.value = false;
 };
 
+onUnmounted(() => abortController?.abort());
+
 watch([selectedRange, assistantId], fetchStats, { immediate: true });
 
 // `direction` says whether a rising trend is good ('up'), bad ('down'), or
@@ -156,7 +186,7 @@ const closeDrilldown = () => {
 
         <CoverageBanner :knowledge="stats?.knowledge" />
 
-        <WelcomeCard :range="selectedRange" />
+        <WelcomeCard :range="selectedRange" :stats="stats" />
 
         <div
           class="grid grid-cols-1 gap-px overflow-hidden border rounded-xl sm:grid-cols-2 lg:grid-cols-3 bg-n-weak border-n-weak"
@@ -169,7 +199,8 @@ const closeDrilldown = () => {
             :trend="metric.trend"
             :hint="metric.hint"
             :trend-good="metric.trendGood"
-            :clickable="canDrilldown && Boolean(metric.metric)"
+            :loading="isFetching"
+            :clickable="canDrilldown && Boolean(metric.metric) && !isFetching"
             @click="openDrilldown(metric)"
           />
         </div>
diff --git a/enterprise/app/controllers/api/v1/accounts/captain/assistants_controller.rb b/enterprise/app/controllers/api/v1/accounts/captain/assistants_controller.rb
index 8a6f158cf..1b7d77289 100644
--- a/enterprise/app/controllers/api/v1/accounts/captain/assistants_controller.rb
+++ b/enterprise/app/controllers/api/v1/accounts/captain/assistants_controller.rb
@@ -47,7 +47,8 @@ class Api::V1::Accounts::Captain::AssistantsController < Api::V1::Accounts::Base
   end
 
   def summary
-    result = cached_or_generated_summary(Captain::AssistantStatsBuilder.new(@assistant, params[:range], params[:timezone_offset]))
+    window = Captain::AssistantStatsWindow.new(params[:range], params[:timezone_offset])
+    result = cached_or_generated_summary(window, summary_stats)
 
     if result[:error]
       render json: { error: result[:error] }, status: :unprocessable_content
@@ -68,8 +69,8 @@ class Api::V1::Accounts::Captain::AssistantsController < Api::V1::Accounts::Base
     params.permit(:metric, :range, :timezone_offset, :page, :per_page)
   end
 
-  def cached_or_generated_summary(builder)
-    cache_key = summary_cache_key(builder.range)
+  def cached_or_generated_summary(window, stats)
+    cache_key = summary_cache_key(window.range)
     cached = Rails.cache.read(cache_key)
     return cached if cached
 
@@ -77,14 +78,25 @@ class Api::V1::Accounts::Captain::AssistantsController < Api::V1::Accounts::Base
       account: Current.account,
       assistant: @assistant,
       first_name: Current.user.name.to_s.split.first,
-      stats: builder.metrics,
-      period: builder.period
+      stats: stats,
+      period: window.period
     ).perform
     # Don't cache transient LLM/config failures, otherwise every reload returns 422 for the next hour.
     Rails.cache.write(cache_key, result, expires_in: 1.hour) unless result[:error]
     result
   end
 
+  def summary_stats
+    params.require(:stats).permit(
+      conversations_handled: %i[current],
+      hours_saved: %i[current],
+      auto_resolution_rate: %i[current trend],
+      handoff_rate: %i[current trend],
+      reopen_rate: %i[current trend],
+      knowledge: %i[coverage approved documents]
+    ).to_h.deep_symbolize_keys
+  end
+
   def summary_cache_key(range)
     "captain_overview_summary/#{@assistant.id}/#{Current.user.id}/#{range}/#{Date.current}"
   end
diff --git a/lib/captain/overview_summary_service.rb b/lib/captain/overview_summary_service.rb
index e11132d42..43eb8c24c 100644
--- a/lib/captain/overview_summary_service.rb
+++ b/lib/captain/overview_summary_service.rb
@@ -32,6 +32,7 @@ class Captain::OverviewSummaryService < Captain::BaseTaskService
     {
       'first_name' => first_name.to_s,
       'assistant_name' => assistant.name.to_s,
+      'language' => account.locale_english_name,
       'conversations_handled' => current(:conversations_handled),
       'hours_saved' => current(:hours_saved),
       'auto_resolution_rate' => current(:auto_resolution_rate),
diff --git a/lib/integrations/openai/openai_prompts/captain_overview_summary.liquid b/lib/integrations/openai/openai_prompts/captain_overview_summary.liquid
index 19c32ed7c..96734b4d9 100644
--- a/lib/integrations/openai/openai_prompts/captain_overview_summary.liquid
+++ b/lib/integrations/openai/openai_prompts/captain_overview_summary.liquid
@@ -1,6 +1,7 @@
 You are writing a short, warm summary of how an AI support assistant named "{{ assistant_name }}" performed over a reporting period, for {{ first_name }}, the person who manages it.
 
 Voice and format:
+- Write the entire summary in {{ language }}, including the opening greeting.
 - Address {{ first_name }} directly and open with "Hey {{ first_name }},". Be conversational, never robotic.
 - Always call the assistant by its name, {{ assistant_name }}. Never call it "Captain", "the assistant", or "your assistant".
 - This is a static, read-only poster on an analytics dashboard, not a chat. The reader cannot reply or ask you for anything. Never ask a question, invite a reply, offer further help, or say things like "let me know" or "I can dive in".
diff --git a/spec/enterprise/controllers/api/v1/accounts/captain/assistants_controller_spec.rb b/spec/enterprise/controllers/api/v1/accounts/captain/assistants_controller_spec.rb
index afb6aa2de..c43924fc4 100644
--- a/spec/enterprise/controllers/api/v1/accounts/captain/assistants_controller_spec.rb
+++ b/spec/enterprise/controllers/api/v1/accounts/captain/assistants_controller_spec.rb
@@ -257,10 +257,20 @@ RSpec.describe 'Api::V1::Accounts::Captain::Assistants', type: :request do
     let(:alice) { create(:user, account: account, role: :administrator, name: 'Alice Adams') }
     let(:bob) { create(:user, account: account, role: :administrator, name: 'Bob Brown') }
     let(:summary_service) { instance_double(Captain::OverviewSummaryService) }
+    let(:summary_stats) do
+      {
+        conversations_handled: { current: 42 },
+        hours_saved: { current: 12 },
+        auto_resolution_rate: { current: 65.0, trend: 5.0 },
+        handoff_rate: { current: 20.0, trend: -2.0 },
+        reopen_rate: { current: 5.0, trend: -1.0 },
+        knowledge: { coverage: 80, approved: 8, documents: 3 }
+      }
+    end
 
     def get_summary(user)
       get "/api/v1/accounts/#{account.id}/captain/assistants/#{assistant.id}/summary",
-          params: { range: '30' },
+          params: { range: '30', stats: summary_stats },
           headers: user.create_new_auth_token,
           as: :json
     end
@@ -273,6 +283,7 @@ RSpec.describe 'Api::V1::Accounts::Captain::Assistants', type: :request do
 
     it 'caches the summary per viewer so one user never receives another user\'s greeting' do
       allow(summary_service).to receive(:perform).and_return({ message: 'Hi Alice' })
+      expect(Captain::AssistantStatsBuilder).not_to receive(:new)
 
       get_summary(alice)
       get_summary(alice) # served from Alice's cache, no regeneration
@@ -280,6 +291,7 @@ RSpec.describe 'Api::V1::Accounts::Captain::Assistants', type: :request do
 
       expect(response).to have_http_status(:success)
       expect(Captain::OverviewSummaryService).to have_received(:new).twice
+      expect(Captain::OverviewSummaryService).to have_received(:new).with(hash_including(stats: summary_stats)).twice
     end
 
     it 'does not cache failures so a transient error is retried' do