diff --git a/ia_prof/settings.py b/ia_prof/settings.py
index c84cce9..59073e3 100644
--- a/ia_prof/settings.py
+++ b/ia_prof/settings.py
@@ -113,4 +113,4 @@ STATIC_URL = '/static/'
 # https://docs.djangoproject.com/en/4.x/ref/settings/#default-auto-field
 
 DEFAULT_AUTO_FIELD = 'django.db.models.BigAutoField'
-OPENAI_API_KEY = "sk-proj-hrV9Se3D3Vn6ro66AoMFT3BlbkFJ3kgB6P9xQFpcaymQQHFI"
\ No newline at end of file
+OPENAI_API_KEY = "your-openai-api-key"
\ No newline at end of file
diff --git a/main/admin.py b/main/admin.py
index 005ebc9..c6c954a 100644
--- a/main/admin.py
+++ b/main/admin.py
@@ -1,4 +1,18 @@
 from django.contrib import admin
-from .models import UserProfile
+from .models import UserProfile, Modele, UserCredit
 
-admin.site.register(UserProfile)
\ No newline at end of file
+@admin.register(Modele)
+class ModeleAdmin(admin.ModelAdmin):
+    list_display = ('nom', 'code', 'actif')
+    list_editable = ('code', 'actif')
+    search_fields = ('nom', 'code')
+    list_filter = ('actif',)
+
+@admin.register(UserCredit)
+class UserCreditAdmin(admin.ModelAdmin):
+    list_display = ('user', 'credit')
+    search_fields = ('user__username',)
+
+@admin.register(UserProfile)
+class UserProfileAdmin(admin.ModelAdmin):
+    list_display = ('user',)
\ No newline at end of file
diff --git a/main/models.py b/main/models.py
index 1ee0980..f9f7b39 100644
--- a/main/models.py
+++ b/main/models.py
@@ -6,4 +6,19 @@ class UserProfile(models.Model):
     # Ajoutez d'autres champs personnalisés ici si besoin
 
     def __str__(self):
-        return self.user.username
\ No newline at end of file
+        return self.user.username
+
+class Modele(models.Model):
+    nom = models.CharField(max_length=255)
+    code = models.CharField(max_length=255, unique=True, default="gpt-4.1-mini")
+    actif = models.BooleanField(default=True)
+
+    def __str__(self):
+        return self.nom
+
+class UserCredit(models.Model):
+    user = models.OneToOneField(User, on_delete=models.CASCADE, related_name='credit')
+    credit = models.IntegerField(default=10)
+
+    def __str__(self):
+        return f"{self.user.username} - Crédit: {self.credit}"
\ No newline at end of file
diff --git a/main/templates/export_pdf.js b/main/templates/export_pdf.js
new file mode 100644
index 0000000..1a31bc9
--- /dev/null
+++ b/main/templates/export_pdf.js
@@ -0,0 +1,38 @@
+// CDN jsPDF + autoTable pour export PDF
+document.addEventListener('DOMContentLoaded', function() {
+    if (!window.jspdfLoaded) {
+        const script1 = document.createElement('script');
+        script1.src = 'https://cdnjs.cloudflare.com/ajax/libs/jspdf/2.5.1/jspdf.umd.min.js';
+        script1.onload = function() {
+            const script2 = document.createElement('script');
+            script2.src = 'https://cdnjs.cloudflare.com/ajax/libs/jspdf-autotable/3.8.2/jspdf.plugin.autotable.min.js';
+            script2.onload = function() { window.jspdfLoaded = true; };
+            document.body.appendChild(script2);
+        };
+        document.body.appendChild(script1);
+    }
+});
+
+function exportTableToPDF() {
+    if (!window.jspdfLoaded) {
+        alert('Les librairies PDF ne sont pas encore chargées. Veuillez réessayer dans quelques secondes.');
+        return;
+    }
+    const { jsPDF } = window.jspdf;
+    const doc = new jsPDF();
+    doc.text('Tableau des appréciations', 14, 14);
+    const table = document.getElementById('appreciations-table');
+    const rows = Array.from(table.querySelectorAll('tbody tr'))
+        .map(tr => [
+            tr.querySelector('.eleve')?.textContent.trim() || '',
+            tr.querySelector('.appreciation')?.textContent.trim() || ''
+        ]);
+    doc.autoTable({
+        head: [['Élève', 'Appréciation']],
+        body: rows,
+        startY: 20,
+        styles: { fontSize: 10, cellWidth: 'wrap' },
+        headStyles: { fillColor: [55, 90, 127] }
+    });
+    doc.save('appreciations.pdf');
+}
diff --git a/main/templates/resultat_appreciations.html b/main/templates/resultat_appreciations.html
index 7c64419..26860e9 100644
--- a/main/templates/resultat_appreciations.html
+++ b/main/templates/resultat_appreciations.html
@@ -64,12 +64,17 @@ body, .bg-light {
   [class*="bg-"] {
     background-color: inherit !important;
   }
+  #credit-restant {
+    background-color: #ffe082 !important;
+    color: #23272b !important;
+    border: 1px solid #444c56 !important;
+  }
 }
 </style>
 </head>
 <body class="bg-light">
     <nav class="navbar navbar-expand navbar-dark bg-dark">
-        <a class="navbar-brand ps-3" href="#">IAProf</a>
+        <a class="navbar-brand ps-3" href="/generation/">IAProf</a>
         <ul class="navbar-nav ms-auto me-3">
             <li class="nav-item">
                 <a class="nav-link" href="/logout/">Se déconnecter</a>
@@ -85,14 +90,29 @@ body, .bg-light {
                             <h2 class="m-0 font-weight-bold text-primary">Génération des appréciations</h2>
                         </div>
                         <div class="card-body">
-                            <div class="mb-3">
-                                <label for="modele-select" class="form-label">Choisir un modèle</label>
-                                <select id="modele-select" class="form-select">
-                                    <option value="ft:gpt-4o-2024-08-06:personal:app-gen-gangneux2:AYJecsON">Modèle Gangneux</option>
-                                    <option value="gpt-4.1-mini">GPT-4.1 mini</option>
-                                </select>
+                            <div class="mb-3 d-flex justify-content-between align-items-center">
+                                <div>
+                                    <label for="modele-select" class="form-label">Choisir un modèle</label>
+                                    <select id="modele-select" class="form-select">
+                                        {% for modele in modeles %}
+                                            <option value="{{ modele.code }}" {% if modele.code == 'gpt-4.1-mini' %}selected{% endif %}>{{ modele.nom }}</option>
+                                        {% endfor %}
+                                        {% if not modeles or not modeles|dictsort:'code'|length %}
+                                            <option value="gpt-4.1-mini" selected>gpt-4.1-mini</option>
+                                        {% endif %}
+                                    </select>
+                                </div>
+                                <div>
+                                    <span class="badge bg-info text-dark" id="credit-restant">Crédits restants : {{ credit }}</span>
+                                </div>
+                            </div>
+                            <div class="mb-3 d-flex gap-2">
+                                <button id="generation-toggle" class="btn btn-primary mb-3">Lancer la génération</button>
+                                <button id="export-pdf" class="btn btn-secondary mb-3" type="button">Exporter en PDF</button>
+                            </div>
+                            <div id="credit-alert" class="alert alert-danger d-none" role="alert">
+                                Vous n'avez plus de crédits pour générer des appréciations.
                             </div>
-                            <button id="generation-toggle" class="btn btn-primary mb-3">Lancer la génération</button>
                             <table class="table table-bordered" id="appreciations-table">
                                 <thead>
                                     <tr>
@@ -116,78 +136,98 @@ body, .bg-light {
                                 </tbody>
                             </table>
                             <script>
-                            let stopGeneration = false;
-                            let enCours = false;
+let stopGeneration = false;
+let enCours = false;
 
-                            function getRowsSansAppreciation() {
-                                return Array.from(document.querySelectorAll('#appreciations-table tbody tr')).filter(row => !row.querySelector('.appreciation').textContent.trim());
-                            }
+function getRowsSansAppreciation() {
+    return Array.from(document.querySelectorAll('#appreciations-table tbody tr')).filter(row => !row.querySelector('.appreciation').textContent.trim());
+}
 
-                            document.addEventListener('DOMContentLoaded', function() {
-                                const btnToggle = document.getElementById('generation-toggle');
-                                const selectModele = document.getElementById('modele-select');
-                                let rows = getRowsSansAppreciation();
+document.addEventListener('DOMContentLoaded', function() {
+    const btnToggle = document.getElementById('generation-toggle');
+    const selectModele = document.getElementById('modele-select');
+    const creditRestant = document.getElementById('credit-restant');
+    const creditAlert = document.getElementById('credit-alert');
+    let rows = getRowsSansAppreciation();
 
-                                function setButtonState(state) {
-                                    if (state === 'lancer') {
-                                        btnToggle.textContent = 'Lancer la génération';
-                                        btnToggle.className = 'btn btn-primary mb-3';
-                                    } else if (state === 'arreter') {
-                                        btnToggle.textContent = 'Arrêter la génération';
-                                        btnToggle.className = 'btn btn-danger mb-3';
-                                    } else if (state === 'continuer') {
-                                        btnToggle.textContent = 'Continuer la génération';
-                                        btnToggle.className = 'btn btn-success mb-3';
-                                    }
-                                }
+    function setButtonState(state) {
+        if (state === 'lancer') {
+            btnToggle.textContent = 'Lancer la génération';
+            btnToggle.className = 'btn btn-primary mb-3';
+        } else if (state === 'arreter') {
+            btnToggle.textContent = 'Arrêter la génération';
+            btnToggle.className = 'btn btn-danger mb-3';
+        } else if (state === 'continuer') {
+            btnToggle.textContent = 'Continuer la génération';
+            btnToggle.className = 'btn btn-success mb-3';
+        }
+    }
 
-                                function traiterLignes() {
-                                    rows = getRowsSansAppreciation();
-                                    if (rows.length === 0 || stopGeneration) {
-                                        enCours = false;
-                                        if (stopGeneration) setButtonState('continuer');
-                                        else setButtonState('lancer');
-                                        return;
-                                    }
-                                    enCours = true;
-                                    setButtonState('arreter');
-                                    const row = rows[0]; // Toujours traiter la première ligne sans appréciation
-                                    const eleve = row.querySelector('.eleve').textContent;
-                                    const appreciationCell = row.querySelector('.appreciation');
-                                    appreciationCell.innerHTML = '<span class="spinner-border spinner-border-sm"></span> Génération...';
-                                    fetch("{% url 'generer_appreciation_ajax' %}", {
-                                        method: 'POST',
-                                        headers: {
-                                            'Content-Type': 'application/json',
-                                            'X-CSRFToken': '{{ csrf_token }}'
-                                        },
-                                        body: JSON.stringify({eleve: eleve, modele: selectModele.value})
-                                    })
-                                    .then(response => response.json())
-                                    .then(data => {
-                                        appreciationCell.textContent = data.appreciation;
-                                        traiterLignes();
-                                    })
-                                    .catch(() => {
-                                        appreciationCell.textContent = 'Erreur lors de la génération';
-                                        traiterLignes();
-                                    });
-                                }
+    function traiterLignes() {
+        rows = getRowsSansAppreciation();
+        if (rows.length === 0 || stopGeneration) {
+            enCours = false;
+            if (stopGeneration) setButtonState('continuer');
+            else setButtonState('lancer');
+            return;
+        }
+        enCours = true;
+        setButtonState('arreter');
+        const row = rows[0];
+        const eleve = row.querySelector('.eleve').textContent;
+        const appreciationCell = row.querySelector('.appreciation');
+        appreciationCell.innerHTML = '<span class="spinner-border spinner-border-sm"></span> Génération...';
+        fetch("{% url 'generer_appreciation_ajax' %}", {
+            method: 'POST',
+            headers: {
+                'Content-Type': 'application/json',
+                'X-CSRFToken': '{{ csrf_token }}'
+            },
+            body: JSON.stringify({eleve: eleve, modele: selectModele.value})
+        })
+        .then(response => response.json())
+        .then(data => {
+            appreciationCell.textContent = data.appreciation;
+            if (typeof data.credit !== 'undefined') {
+                creditRestant.textContent = 'Crédits restants : ' + data.credit;
+            }
+            if (data.stop) {
+                stopGeneration = true;
+                setButtonState('lancer');
+                if (data.credit === 0) {
+                    creditAlert.classList.remove('d-none');
+                }
+                return;
+            }
+            traiterLignes();
+        })
+        .catch(() => {
+            appreciationCell.textContent = 'Erreur lors de la génération';
+            traiterLignes();
+        });
+    }
 
-                                btnToggle.addEventListener('click', function() {
-                                    if (!enCours && (btnToggle.textContent === 'Lancer la génération' || btnToggle.textContent === 'Continuer la génération')) {
-                                        stopGeneration = false;
-                                        setButtonState('arreter');
-                                        traiterLignes();
-                                    } else if (enCours && btnToggle.textContent === 'Arrêter la génération') {
-                                        stopGeneration = true;
-                                        setButtonState('continuer');
-                                    }
-                                });
+    btnToggle.addEventListener('click', function() {
+        const credit = parseInt(creditRestant.textContent.replace(/\D/g, ''));
+        if (credit === 0) {
+            creditAlert.classList.remove('d-none');
+            return;
+        } else {
+            creditAlert.classList.add('d-none');
+        }
+        if (!enCours && (btnToggle.textContent === 'Lancer la génération' || btnToggle.textContent === 'Continuer la génération')) {
+            stopGeneration = false;
+            setButtonState('arreter');
+            traiterLignes();
+        } else if (enCours && btnToggle.textContent === 'Arrêter la génération') {
+            stopGeneration = true;
+            setButtonState('continuer');
+        }
+    });
 
-                                setButtonState('lancer');
-                            });
-                            </script>
+    setButtonState('lancer');
+});
+</script>
                         </div>
                     </div>
                 </div>
@@ -195,5 +235,28 @@ body, .bg-light {
         </div>
     </div>
     <script src="https://cdn.jsdelivr.net/npm/bootstrap@5.3.3/dist/js/bootstrap.bundle.min.js"></script>
+    <script src="https://cdnjs.cloudflare.com/ajax/libs/jspdf/2.5.1/jspdf.umd.min.js"></script>
+    <script src="https://cdnjs.cloudflare.com/ajax/libs/jspdf-autotable/3.8.2/jspdf.plugin.autotable.min.js"></script>
+    <script>
+    function exportTableToPDF() {
+        const doc = new window.jspdf.jsPDF();
+        doc.text('Tableau des appréciations', 14, 14);
+        const table = document.getElementById('appreciations-table');
+        const rows = Array.from(table.querySelectorAll('tbody tr'))
+            .map(tr => [
+                tr.querySelector('.eleve')?.textContent.trim() || '',
+                tr.querySelector('.appreciation')?.textContent.trim() || ''
+            ]);
+        doc.autoTable({
+            head: [['Élève', 'Appréciation']],
+            body: rows,
+            startY: 20,
+            styles: { fontSize: 10, cellWidth: 'wrap' },
+            headStyles: { fillColor: [55, 90, 127] }
+        });
+        doc.save('appreciations.pdf');
+    }
+    document.getElementById('export-pdf').addEventListener('click', exportTableToPDF);
+    </script>
 </body>
 </html>
diff --git a/main/views.py b/main/views.py
index b966da7..a4cf295 100644
--- a/main/views.py
+++ b/main/views.py
@@ -5,6 +5,8 @@ from django.conf import settings
 from main.openAIAppreciations import *
 from django.urls import reverse
 from django.http import JsonResponse
+from django.contrib.auth.models import User
+from main.models import UserCredit, Modele
 import os
 import uuid
 import json
@@ -44,7 +46,15 @@ def generation(request):
 @login_required(login_url='/login/')
 def resultat_appreciations(request):
     appreciations_result = request.session.get('appreciations_json', [])
-    return render(request, 'resultat_appreciations.html', {'appreciations_json': appreciations_result})
+    credit = 0
+    if hasattr(request.user, 'credit'):
+        credit = request.user.credit.credit
+    modeles = Modele.objects.filter(actif=True)
+    return render(request, 'resultat_appreciations.html', {
+        'appreciations_json': appreciations_result,
+        'credit': credit,
+        'modeles': modeles
+    })
 
 @login_required(login_url='/login/')
 def generer_appreciation_ajax(request):
@@ -52,8 +62,18 @@ def generer_appreciation_ajax(request):
         data = json.loads(request.body)
         eleve = data.get('eleve')
         modele = data.get('modele')
-        appreciation = generer_appreciation_pour_eleve(eleve, request.session.get('appreciations_json', []), modele)
-        return JsonResponse({'appreciation': appreciation})
+        user = request.user
+        # Vérifier le crédit
+        if hasattr(user, 'credit') and user.credit.credit > 0:
+            appreciation = generer_appreciation_pour_eleve(eleve, request.session.get('appreciations_json', []), modele)
+            # Décrémenter le crédit
+            user.credit.credit -= 1
+            user.credit.save()
+            credit = user.credit.credit
+            stop = credit == 0
+            return JsonResponse({'appreciation': appreciation, 'credit': credit, 'stop': stop})
+        else:
+            return JsonResponse({'appreciation': 'Crédit épuisé', 'credit': 0, 'stop': True})
     return JsonResponse({'error': 'Méthode non autorisée'}, status=405)
 
 def logout_view(request):