diff --git a/app/Console/Commands/SessionSummary.php b/app/Console/Commands/SessionSummary.php
index b9626f4..581002e 100644
--- a/app/Console/Commands/SessionSummary.php
+++ b/app/Console/Commands/SessionSummary.php
@@ -28,10 +28,15 @@ public function handle(): int
 
         foreach ($runs as $run) {
             // Grouping key: user + GPU + model + quant + visibility + engine
-            // + harness identity + named server config. Free-text labels are
-            // intentionally NOT part of identity: rerunning psychbench with
-            // the same actual settings belongs in the same bubble even when
-            // the user wrote a different run note.
+            // + harness identity + named server config + label. The label is
+            // the run-wide experiment/config variant (e.g. a power-cap
+            // setting), so different labels are different sessions even when
+            // every other dimension matches. Normalize null/empty to a
+            // single sentinel so unlabeled runs still group together.
+            $normalizedLabel = $run->label !== null && $run->label !== ''
+                ? $run->label
+                : 'unlabeled';
+
             $key = implode('|', [
                 $run->model_id ?? '-',
                 $run->model_quant ?? '-',
@@ -48,11 +53,12 @@ public function handle(): int
                 $run->harness_ver ?: '-',
                 $run->harness_mode ?: 'one-shot',
                 $run->config_id ?? 'none',
+                $normalizedLabel,
             ]);
 
             $sessions[$key] ??= [
                 'key' => $key,
-                'labels' => collect([$run->label])->filter(),
+                'label' => $run->label,
                 'model_id' => $run->model_id,
                 'model_quant' => $run->model_quant,
                 'gpu' => $run->gpu,
@@ -71,10 +77,6 @@ public function handle(): int
                 'runs' => collect(),
             ];
 
-            if ($run->label !== null && $run->label !== '') {
-                $sessions[$key]['labels']->push($run->label);
-            }
-
             // Scenariobench is aggregated at band level (one row for all
             // scenario runs in the band) rather than per-run, so collect the
             // run rows and defer to a second pass below.
@@ -114,11 +116,7 @@ public function handle(): int
             foreach (array_values($sessions) as $bandIndex => $band) {
                 $summaryId = DB::table('session_summaries')->insertGetId([
                     'session_key' => $band['key'],
-                    // Keep a label only when every grouped run agrees. A
-                    // mixed label is a note, not a configuration split.
-                    'label' => $band['labels']->unique()->count() === 1
-                        ? $band['labels']->first()
-                        : null,
+                    'label' => $band['label'],
                     'model_id' => $band['model_id'],
                     'model_quant' => $band['model_quant'],
                     'gpu' => $band['gpu'],
diff --git a/resources/views/livewire/sessions/scenarios.blade.php b/resources/views/livewire/sessions/scenarios.blade.php
index e6d8914..548611b 100644
--- a/resources/views/livewire/sessions/scenarios.blade.php
+++ b/resources/views/livewire/sessions/scenarios.blade.php
@@ -7,7 +7,8 @@
 use Livewire\Attributes\Layout;
 use Livewire\Component;
 
-new #[Layout('components.layouts.app')] class extends Component {
+new #[Layout('components.layouts.app')] class extends Component
+{
     use IncludesSorting;
 
     private const SORTABLE = [
@@ -55,7 +56,16 @@ public function runs()
             ->where('engine', $band->engine)
             ->where(function ($q) use ($band) {
                 $q->whereNull('config_id')
-                  ->orWhere('config_id', $this->configIdFromName($band->config_name));
+                    ->orWhere('config_id', $this->configIdFromName($band->config_name));
+            })
+            ->where(function ($q) use ($band) {
+                if ($band->label !== null && $band->label !== '') {
+                    $q->where('label', $band->label);
+                } else {
+                    $q->where(function ($inner) {
+                        $inner->whereNull('label')->orWhere('label', '');
+                    });
+                }
             })
             ->orderBy('ran_at')
             ->get();
@@ -82,7 +92,7 @@ public function results()
             ->whereIn('benchmark_run_id', $runIds);
 
         if ($column === 'gen_tps') {
-            $query->orderByRaw('gen_tokens / nullif(wall, 0) ' . $direction);
+            $query->orderByRaw('gen_tokens / nullif(wall, 0) '.$direction);
         } else {
             $query->orderBy($column, $direction);
         }
diff --git a/resources/views/livewire/summary/index.blade.php b/resources/views/livewire/summary/index.blade.php
index 65a5fba..45292b3 100644
--- a/resources/views/livewire/summary/index.blade.php
+++ b/resources/views/livewire/summary/index.blade.php
@@ -6,7 +6,8 @@
 use Livewire\Component;
 use Livewire\WithPagination;
 
-new class extends Component {
+new class extends Component
+{
     use WithPagination;
 
     public array $filters = [
@@ -152,16 +153,15 @@ class="w-64"
                         <span class="text-sm">{{ $session->band->model_id ?? 'unknown model' }}</span>
                         @if ($session->band->label)
                             <flux:badge size="xs" color="amber">{{ $session->band->label }}</flux:badge>
-                        @else
-                            @if ($session->band->model_quant)
-                                <flux:badge size="xs" color="zinc">{{ $session->band->model_quant }}</flux:badge>
-                            @endif
-                            @if ($session->band->engine)
-                                <flux:badge size="xs" color="sky">{{ $session->band->engine }}</flux:badge>
-                            @endif
-                            @if ($session->band->config_name)
-                                <flux:badge size="xs" color="amber">{{ $session->band->config_name }}</flux:badge>
-                            @endif
+                        @endif
+                        @if ($session->band->model_quant)
+                            <flux:badge size="xs" color="zinc">{{ $session->band->model_quant }}</flux:badge>
+                        @endif
+                        @if ($session->band->engine)
+                            <flux:badge size="xs" color="sky">{{ $session->band->engine }}</flux:badge>
+                        @endif
+                        @if ($session->band->config_name)
+                            <flux:badge size="xs" color="amber">{{ $session->band->config_name }}</flux:badge>
                         @endif
                         <flux:spacer />
                         <span class="text-sm text-zinc-500">{{ $session->band->runner_name ?? 'anonymous' }}</span>