diff --git a/README.md b/README.md
index dce16fe..8011a23 100644
--- a/README.md
+++ b/README.md
@@ -30,6 +30,6 @@ Szkielet komponentu Joomla 6 do gromadzenia pytań testowych.
 
 ## Instalacja
 
-W Joomla wybierz **System → Install → Install from Folder** i wskaż ten katalog. Manifestem instalacyjnym jest `com_testquestions.xml` (wersja 1.43.3).
+W Joomla wybierz **System → Install → Install from Folder** i wskaż ten katalog. Manifestem instalacyjnym jest `com_testquestions.xml` (wersja 1.43.4).
 
 Po instalacji komponent jest dostępny w panelu administratora jako **Pytania testowe**.
diff --git a/administrator/components/com_testquestions/sql/updates/mysql/1.43.4.sql b/administrator/components/com_testquestions/sql/updates/mysql/1.43.4.sql
new file mode 100644
index 0000000..9d56018
--- /dev/null
+++ b/administrator/components/com_testquestions/sql/updates/mysql/1.43.4.sql
@@ -0,0 +1 @@
+-- No database changes required for version 1.43.4.
diff --git a/administrator/components/com_testquestions/src/Model/ResultModel.php b/administrator/components/com_testquestions/src/Model/ResultModel.php
index ba4abbe..0989532 100644
--- a/administrator/components/com_testquestions/src/Model/ResultModel.php
+++ b/administrator/components/com_testquestions/src/Model/ResultModel.php
@@ -151,6 +151,9 @@ class ResultModel extends BaseDatabaseModel
         );
         $item->answers[$questionId]['ai_feedback'] = $aiResult['feedback'];
         $item->answers[$questionId]['awarded_points'] = $aiResult['awarded_points'];
+        if ($aiResult['usage'] !== null) {
+            $item->answers[$questionId]['ai_usage'] = $aiResult['usage'];
+        }
 
         $correctionPoints = 0;
         foreach ($item->answers as $savedAnswer) {
diff --git a/administrator/components/com_testquestions/src/Service/AiService.php b/administrator/components/com_testquestions/src/Service/AiService.php
index b5ff1ec..0be68c1 100644
--- a/administrator/components/com_testquestions/src/Service/AiService.php
+++ b/administrator/components/com_testquestions/src/Service/AiService.php
@@ -73,9 +73,46 @@ class AiService
             throw new \RuntimeException('AI zwróciło nieprawidłowy format oceny i punktów.');
         }
 
+        $usage = $this->getUsage($body, $provider, $config['model']);
+
         return [
             'awarded_points' => min(max(0, $maxPoints), max(0, (int) $result['awarded_points'])),
             'feedback' => trim((string) ($result['feedback'] ?? '')),
+            'usage' => $usage,
+        ];
+    }
+
+    private function getUsage(array $body, string $provider, string $model): ?array
+    {
+        $usage = $body['usage'] ?? null;
+        if (!is_array($usage) || !isset($usage['input_tokens'], $usage['output_tokens'])) {
+            return null;
+        }
+
+        $inputTokens = max(0, (int) $usage['input_tokens']);
+        $outputTokens = max(0, (int) $usage['output_tokens']);
+        $cachedTokens = min($inputTokens, max(0, (int) ($usage['input_tokens_details']['cached_tokens'] ?? 0)));
+        $cost = null;
+        $costSource = '';
+
+        if ($provider === 'grok' && isset($usage['cost_in_usd_ticks']) && is_numeric($usage['cost_in_usd_ticks'])) {
+            $cost = (float) $usage['cost_in_usd_ticks'] / 10000000000;
+            $costSource = 'provider';
+        } elseif ($provider === 'openai' && $model === 'gpt-4.1-mini') {
+            $uncachedTokens = $inputTokens - $cachedTokens;
+            $cost = ($uncachedTokens * 0.40 + $cachedTokens * 0.10 + $outputTokens * 1.60) / 1000000;
+            $costSource = 'token_rates';
+        }
+
+        return [
+            'provider' => $provider,
+            'model' => $model,
+            'input_tokens' => $inputTokens,
+            'output_tokens' => $outputTokens,
+            'total_tokens' => (int) ($usage['total_tokens'] ?? ($inputTokens + $outputTokens)),
+            'cached_input_tokens' => $cachedTokens,
+            'cost_usd' => $cost,
+            'cost_source' => $costSource,
         ];
     }
 
diff --git a/administrator/components/com_testquestions/tmpl/result/default.php b/administrator/components/com_testquestions/tmpl/result/default.php
index dad1245..b7a061e 100644
--- a/administrator/components/com_testquestions/tmpl/result/default.php
+++ b/administrator/components/com_testquestions/tmpl/result/default.php
@@ -35,6 +35,25 @@
             <button type="submit" class="btn btn-primary" formaction="<?php echo Route::_('index.php?option=com_testquestions&task=result.aiAll&id=' . (int) $this->item->id); ?>" onclick="this.form.task.value='result.aiAll';">
                 <?php echo \Joomla\CMS\Language\Text::sprintf('COM_TESTQUESTIONS_AI_EVALUATE_ALL', $pendingAiCount); ?>
             </button>
+            <?php
+            $usageTotals = ['input_tokens' => 0, 'output_tokens' => 0, 'total_tokens' => 0, 'cost_usd' => 0.0, 'providers' => []];
+            foreach ($this->item->answers as $savedAnswer) {
+                $usage = $savedAnswer['ai_usage'] ?? null;
+                if (!is_array($usage)) continue;
+                $usageTotals['input_tokens'] += (int) ($usage['input_tokens'] ?? 0);
+                $usageTotals['output_tokens'] += (int) ($usage['output_tokens'] ?? 0);
+                $usageTotals['total_tokens'] += (int) ($usage['total_tokens'] ?? 0);
+                if (is_numeric($usage['cost_usd'] ?? null)) $usageTotals['cost_usd'] += (float) $usage['cost_usd'];
+                if (!empty($usage['provider'])) $usageTotals['providers'][(string) $usage['provider']] = true;
+            }
+            ?>
+            <?php if ($usageTotals['total_tokens'] > 0) : ?>
+                <span class="badge text-bg-light border ms-2" title="Suma dotychczasowych ocen AI">
+                    ✦ <?php echo implode(' + ', array_map('htmlspecialchars', array_keys($usageTotals['providers']))); ?>:
+                    <?php echo number_format($usageTotals['total_tokens'], 0, ',', ' '); ?> tokenów,
+                    <?php echo number_format($usageTotals['cost_usd'], 8, ',', ' '); ?> USD
+                </span>
+            <?php endif; ?>
         </div>
     <?php endif; ?>
     <h2><?php echo \Joomla\CMS\Language\Text::_('COM_TESTQUESTIONS_RESULT_ANSWERS'); ?></h2>
@@ -55,6 +74,17 @@
                         <button type="submit" name="ai_question_id" value="<?php echo (int) $questionId; ?>" onclick="this.form.task.value='result.ai';" formaction="<?php echo Route::_('index.php?option=com_testquestions&task=result.ai&id=' . (int) $this->item->id); ?>" class="btn btn-outline-primary">
                             <?php echo \Joomla\CMS\Language\Text::_('COM_TESTQUESTIONS_AI_EVALUATE'); ?>
                         </button>
+                        <?php if (!empty($answer['ai_usage']) && is_array($answer['ai_usage'])) : ?>
+                            <?php $usage = $answer['ai_usage']; ?>
+                            <?php $usageProvider = (string) ($usage['provider'] ?? ''); ?>
+                            <span class="badge text-bg-light border ms-2" title="<?php echo $usageProvider === 'grok' ? 'Koszt zwrócony przez dostawcę' : 'Koszt obliczony z faktycznie wykorzystanych tokenów i stawek modelu'; ?>">
+                                <?php echo $usageProvider === 'grok' ? '✦ Grok' : '◉ OpenAI'; ?> ·
+                                <?php echo number_format((int) ($usage['input_tokens'] ?? 0), 0, ',', ' '); ?> in /
+                                <?php echo number_format((int) ($usage['output_tokens'] ?? 0), 0, ',', ' '); ?> out ·
+                                <?php echo is_numeric($usage['cost_usd'] ?? null) ? number_format((float) $usage['cost_usd'], 8, ',', ' ') . ' USD' : 'koszt niedostępny'; ?>
+                                <?php echo ($usage['cost_source'] ?? '') === 'token_rates' ? ' (wyliczony)' : ''; ?>
+                            </span>
+                        <?php endif; ?>
                     </div>
                     <?php if (!empty($answer['ai_feedback'])) : ?>
                         <div class="alert alert-info mt-3"><strong><?php echo \Joomla\CMS\Language\Text::_('COM_TESTQUESTIONS_AI_RESULT'); ?>:</strong><br><?php echo nl2br(htmlspecialchars((string) $answer['ai_feedback'], ENT_QUOTES, 'UTF-8')); ?></div>
diff --git a/com_testquestions.xml b/com_testquestions.xml
index fa8965a..95ae391 100644
--- a/com_testquestions.xml
+++ b/com_testquestions.xml
@@ -4,7 +4,7 @@
     <creationDate>2026-10-14</creationDate>
     <author>Komponent</author>
     <license>GNU General Public License version 2 or later</license>
-    <version>1.43.3</version>
+    <version>1.43.4</version>
     <description>COM_TESTQUESTIONS_DESCRIPTION</description>
     <element>com_testquestions</element>
     <namespace path="src">Komponent\Component\Testquestions</namespace>