diff --git a/api/lab/save_config.php b/api/lab/save_config.php
index 5e9ea52..42fb5c7 100644
--- a/api/lab/save_config.php
+++ b/api/lab/save_config.php
@@ -17,6 +17,7 @@ $permitidas = [
     'empresa_telefono', 'empresa_email', 'empresa_ciudad',
     'doc_color', 'doc_logo_base64', 'doc_pie_pagina',
     'gemini_api_key',
+    'ia_activa',
 ];
 
 $guardadas = 0;
diff --git a/api/lab/test_gemini.php b/api/lab/test_gemini.php
new file mode 100644
index 0000000..e5cce29
--- /dev/null
+++ b/api/lab/test_gemini.php
@@ -0,0 +1,40 @@
+<?php
+/**
+ * POST /api/lab/test_gemini.php
+ * Prueba la clave de Gemini con una pregunta mínima.
+ * Body JSON: { key: string }
+ */
+require_once __DIR__ . '/_helpers.php';
+requireMethod('POST');
+requireAdmin();
+
+$datos = inputJson();
+$key   = trim($datos['key'] ?? '');
+if (!$key) jsonError('Token vacío.');
+
+$payload = json_encode([
+    'contents' => [['role' => 'user', 'parts' => [['text' => 'Responde solo con la palabra: OK']]]],
+    'generationConfig' => ['maxOutputTokens' => 10, 'temperature' => 0],
+], JSON_UNESCAPED_UNICODE);
+
+$ch = curl_init("https://generativelanguage.googleapis.com/v1beta/models/gemini-2.0-flash:generateContent?key={$key}");
+curl_setopt_array($ch, [
+    CURLOPT_RETURNTRANSFER => true,
+    CURLOPT_POST           => true,
+    CURLOPT_POSTFIELDS     => $payload,
+    CURLOPT_HTTPHEADER     => ['Content-Type: application/json'],
+    CURLOPT_TIMEOUT        => 10,
+    CURLOPT_SSL_VERIFYPEER => true,
+]);
+$raw  = curl_exec($ch);
+$code = curl_getinfo($ch, CURLINFO_HTTP_CODE);
+curl_close($ch);
+
+if (!$raw) jsonError('Sin respuesta del servidor de Google.', 502);
+
+$gemini = json_decode($raw, true);
+if ($code !== 200) {
+    jsonError($gemini['error']['message'] ?? "Error HTTP {$code}", 502);
+}
+
+jsonOk(['modelo' => 'gemini-2.0-flash', 'respuesta' => $gemini['candidates'][0]['content']['parts'][0]['text'] ?? '']);
diff --git a/lab_configuracion.php b/lab_configuracion.php
index 5be4a92..c84bb6c 100644
--- a/lab_configuracion.php
+++ b/lab_configuracion.php
@@ -167,7 +167,14 @@ require_once __DIR__ . '/shared/components/sidebar.php';
 
                 <!-- ── Inteligencia Artificial ────────────────────────── -->
                 <div class="section-card">
-                    <h6><i class="fas fa-robot me-1"></i>Inteligencia Artificial — Google Gemini</h6>
+                    <div class="d-flex align-items-center justify-content-between mb-2">
+                        <h6 class="mb-0"><i class="fas fa-robot me-1"></i>Inteligencia Artificial — Google Gemini</h6>
+                        <div class="form-check form-switch mb-0">
+                            <input class="form-check-input" type="checkbox" id="c-ia-activa" role="switch"
+                                   <?= !empty($cfg['ia_activa']) && $cfg['ia_activa'] === '1' ? 'checked' : '' ?>>
+                            <label class="form-check-label small fw-semibold" for="c-ia-activa">Activo</label>
+                        </div>
+                    </div>
                     <p class="text-muted small mb-3">
                         El asistente IA del turnero usa Google Gemini Flash para responder preguntas
                         sobre el estado del día. Genera tu clave en
@@ -184,8 +191,11 @@ require_once __DIR__ . '/shared/components/sidebar.php';
                                     onclick="this.previousElementSibling.type = this.previousElementSibling.type === 'password' ? 'text' : 'password'">
                                 <i class="fas fa-eye"></i>
                             </button>
+                            <button class="btn btn-outline-primary" type="button" id="btn-probar-ia" onclick="probarIA()">
+                                <i class="fas fa-plug me-1"></i>Probar
+                            </button>
                         </div>
-                        <div class="form-text">El token se guarda cifrado y nunca se expone al navegador.</div>
+                        <div id="ia-test-result" class="form-text mt-1"></div>
                     </div>
                 </div>
 
@@ -311,6 +321,7 @@ async function guardar() {
         doc_logo_base64:   $('c-logo-base64').value,
         doc_pie_pagina:    $('c-doc-pie').value.trim(),
         gemini_api_key:    $('c-gemini-key').value.trim(),
+        ia_activa:         $('c-ia-activa').checked ? '1' : '0',
     };
 
     if (!payload.empresa_nombre) {
@@ -342,6 +353,36 @@ async function guardar() {
         btn.innerHTML = '<i class="fas fa-save me-2"></i>Guardar configuración';
     }
 }
+
+async function probarIA() {
+    const key = $('c-gemini-key').value.trim();
+    const res  = document.getElementById('ia-test-result');
+    const btn  = document.getElementById('btn-probar-ia');
+    if (!key) { res.innerHTML = '<span class="text-danger">Ingresa el token primero.</span>'; return; }
+
+    btn.disabled = true;
+    btn.innerHTML = '<span class="spinner-border spinner-border-sm"></span>';
+    res.innerHTML = '';
+
+    try {
+        const r = await fetch('api/lab/test_gemini.php', {
+            method: 'POST',
+            headers: { 'Content-Type': 'application/json' },
+            body: JSON.stringify({ key }),
+        });
+        const d = await r.json();
+        if (d.ok) {
+            res.innerHTML = '<span class="text-success"><i class="fas fa-check-circle me-1"></i>Conexión exitosa — ' + (d.modelo || 'Gemini') + '</span>';
+        } else {
+            res.innerHTML = '<span class="text-danger"><i class="fas fa-times-circle me-1"></i>' + (d.error || 'Error de conexión') + '</span>';
+        }
+    } catch(_) {
+        res.innerHTML = '<span class="text-danger"><i class="fas fa-times-circle me-1"></i>No se pudo conectar.</span>';
+    } finally {
+        btn.disabled = false;
+        btn.innerHTML = '<i class="fas fa-plug me-1"></i>Probar';
+    }
+}
 </script>
 <script src="assets/js/lab-sidebar.js"></script>
 </body>
diff --git a/modules/turnero/views/dashboard.php b/modules/turnero/views/dashboard.php
index 25e19a1..d189731 100644
--- a/modules/turnero/views/dashboard.php
+++ b/modules/turnero/views/dashboard.php
@@ -7,6 +7,12 @@
 require_once APP_ROOT . '/config/config.php';
 if (!isUserLoggedIn()) { header('Location: ' . BASE_URL . 'login.php'); exit; }
 
+$_iaActiva = false;
+try {
+    $_cfgIA = Database::getInstance()->fetch("SELECT valor FROM lab_config WHERE clave = 'ia_activa'");
+    $_iaActiva = ($_cfgIA['valor'] ?? '0') === '1';
+} catch (\Throwable $_) {}
+
 Layout::open('Dashboard Turnero', 'fas fa-chart-bar');
 ?>
 <style>
@@ -191,6 +197,7 @@ Layout::open('Dashboard Turnero', 'fas fa-chart-bar');
     </div>
 </div>
 
+<?php if ($_iaActiva): ?>
 <!-- ── Botón flotante IA ── -->
 <button id="btnAI" title="Asistente IA" onclick="toggleAI()">
     <i class="fas fa-robot"></i>
@@ -212,6 +219,7 @@ Layout::open('Dashboard Turnero', 'fas fa-chart-bar');
         <button class="btn-send" onclick="enviarIA()"><i class="fas fa-paper-plane"></i></button>
     </div>
 </div>
+<?php endif; ?>
 
 <script>
 /* ═══════════════════════════════════════════════════════════