diff --git a/admin/class-peptide-news-admin.php b/admin/class-peptide-news-admin.php
index 177dbd8..7ccffa8 100644
--- a/admin/class-peptide-news-admin.php
+++ b/admin/class-peptide-news-admin.php
@@ -568,6 +568,13 @@ class Peptide_News_Admin {
         echo '</button>';
         echo '<span id="peptide-backfill-result" style="margin-left:10px;"></span>';
 
+        // Generate AI Summaries button.
+        echo '<br style="margin-bottom:8px;">';
+        echo '<button type="button" id="peptide-generate-summaries" class="button button-primary" style="margin-top:8px;">';
+        echo esc_html__( 'Generate AI Summaries', 'peptide-news' );
+        echo '</button>';
+        echo '<span id="peptide-summary-result" style="margin-left:10px;"></span>';
+
         ?>
         <script>
         (function($) {
@@ -591,6 +598,50 @@ class Peptide_News_Admin {
                 });
             });
 
+            // Generate AI Summaries — loops in batches until all articles are done.
+            $('#peptide-generate-summaries').on('click', function() {
+                var $btn = $(this), $result = $('#peptide-summary-result');
+                var totalProcessed = 0;
+
+                $btn.prop('disabled', true);
+                $result.text('<?php echo esc_js( __( 'Starting...', 'peptide-news' ) ); ?>');
+
+                function runBatch() {
+                    $btn.text('<?php echo esc_js( __( 'Generating...', 'peptide-news' ) ); ?>');
+                    $.post(peptideNewsAdmin.ajax_url, {
+                        action: 'peptide_news_generate_summaries',
+                        nonce: peptideNewsAdmin.admin_nonce
+                    }, function(response) {
+                        if (response.success) {
+                            totalProcessed += response.data.processed;
+                            var remaining = response.data.remaining;
+                            $result.text(totalProcessed + ' summarized, ' + remaining + ' remaining...');
+
+                            if (remaining > 0 && response.data.processed > 0) {
+                                // Continue with next batch.
+                                runBatch();
+                            } else {
+                                // Done — either all processed or no progress (error).
+                                $btn.prop('disabled', false).text('<?php echo esc_js( __( 'Generate AI Summaries', 'peptide-news' ) ); ?>');
+                                if (remaining === 0) {
+                                    $result.text('Done! ' + totalProcessed + ' article(s) summarized.');
+                                } else {
+                                    $result.text(totalProcessed + ' summarized. ' + remaining + ' could not be processed — check the debug log.');
+                                }
+                            }
+                        } else {
+                            $btn.prop('disabled', false).text('<?php echo esc_js( __( 'Generate AI Summaries', 'peptide-news' ) ); ?>');
+                            $result.text('Error: ' + (response.data || 'Unknown error'));
+                        }
+                    }).fail(function() {
+                        $btn.prop('disabled', false).text('<?php echo esc_js( __( 'Generate AI Summaries', 'peptide-news' ) ); ?>');
+                        $result.text('Request failed. ' + totalProcessed + ' completed before failure.');
+                    });
+                }
+
+                runBatch();
+            });
+
         })(jQuery);
         </script>
         <?php
diff --git a/includes/class-peptide-news-llm.php b/includes/class-peptide-news-llm.php
index c8bfa89..57a06a0 100644
--- a/includes/class-peptide-news-llm.php
+++ b/includes/class-peptide-news-llm.php
@@ -114,22 +114,26 @@ class Peptide_News_LLM {
      * Process all unanalyzed articles (called after a fetch cycle).
      *
      * Includes a time-based guard to prevent cron timeouts and
-     * respects the admin-configured max articles per cycle.
+     * respects the admin-configured max articles per cycle unless
+     * $override_limit is true (used by the manual bulk-generate button).
      *
-     * @param int $batch_size  Max articles to process per run.
-     * @return int              Number of articles successfully processed.
+     * @param int  $batch_size      Max articles to process per run.
+     * @param bool $override_limit  When true, ignore the admin "max per cycle" cap.
+     * @return int                   Number of articles successfully processed.
      */
-    public static function process_unanalyzed( $batch_size = 10 ) {
+    public static function process_unanalyzed( $batch_size = 10, $override_limit = false ) {
         if ( ! self::is_enabled() ) {
             return 0;
         }
 
-        // Respect admin cost-control setting.
-        $max_per_cycle = absint( get_option( 'peptide_news_llm_max_articles', 10 ) );
-        if ( $max_per_cycle < 1 ) {
-            $max_per_cycle = 10;
+        if ( ! $override_limit ) {
+            // Respect admin cost-control setting for automated cron runs.
+            $max_per_cycle = absint( get_option( 'peptide_news_llm_max_articles', 10 ) );
+            if ( $max_per_cycle < 1 ) {
+                $max_per_cycle = 10;
+            }
+            $batch_size = min( $batch_size, $max_per_cycle );
         }
-        $batch_size = min( $batch_size, $max_per_cycle );
 
         global $wpdb;
         $table = $wpdb->prefix . 'peptide_news_articles';
@@ -370,6 +374,63 @@ class Peptide_News_LLM {
         }
     }
 
+    /**
+     * AJAX handler: bulk-generate AI summaries for articles that are missing them.
+     *
+     * Processes up to 50 articles per request. Returns the count of articles
+     * processed and remaining so the admin UI can loop until done.
+     *
+     * @since 2.0.1
+     */
+    public static function ajax_generate_summaries() {
+        check_ajax_referer( 'peptide_news_admin', 'nonce' );
+
+        if ( ! current_user_can( 'manage_options' ) ) {
+            wp_send_json_error( 'Unauthorized', 403 );
+        }
+
+        if ( ! self::is_enabled() ) {
+            wp_send_json_error( 'AI Analysis is not enabled. Please enable it and set an OpenRouter API key in Peptide News → Settings.' );
+        }
+
+        global $wpdb;
+        $table = $wpdb->prefix . 'peptide_news_articles';
+
+        // Count how many still need processing.
+        $remaining = (int) $wpdb->get_var(
+            "SELECT COUNT(*) FROM {$table}
+             WHERE is_active = 1
+               AND ( ai_summary = '' OR ai_summary IS NULL )"
+        );
+
+        if ( $remaining < 1 ) {
+            wp_send_json_success( array(
+                'processed' => 0,
+                'remaining' => 0,
+                'message'   => 'All articles already have AI summaries.',
+            ) );
+        }
+
+        // Process a generous batch — the 120-second timeout guard inside
+        // process_unanalyzed() will stop early if needed. Override the
+        // per-cycle limit since this is a manual admin action.
+        $batch_size = min( 50, $remaining );
+        $processed  = self::process_unanalyzed( $batch_size, true );
+
+        // Recount remaining after this batch.
+        $still_remaining = (int) $wpdb->get_var(
+            "SELECT COUNT(*) FROM {$table}
+             WHERE is_active = 1
+               AND ( ai_summary = '' OR ai_summary IS NULL )"
+        );
+
+        wp_send_json_success( array(
+            'processed' => $processed,
+            'remaining' => $still_remaining,
+            'message'   => sprintf( '%d article(s) summarized, %d remaining.', $processed, $still_remaining ),
+        ) );
+    }
+
     /**
      * Clear all article transient caches.
      */
diff --git a/includes/class-peptide-news.php b/includes/class-peptide-news.php
index 7dee51b..25a0cc3 100644
--- a/includes/class-peptide-news.php
+++ b/includes/class-peptide-news.php
@@ -81,6 +81,7 @@ class Peptide_News {
         $this->loader->add_action( 'peptide_news_cron_fetch', $fetcher, 'fetch_all_sources' );
         $this->loader->add_filter( 'cron_schedules', $fetcher, 'add_custom_cron_schedules' );
         $this->loader->add_action( 'wp_ajax_peptide_news_backfill_sources', $fetcher, 'ajax_backfill_sources' );
+        $this->loader->add_action( 'wp_ajax_peptide_news_generate_summaries', 'Peptide_News_LLM', 'ajax_generate_summaries' );
     }
 
     /**