finished the upgrade to filament 4. completely revamped the frontend with codex, now it looks great!

app/Filament/Resources/AiModels/Pages/CreateAiModel.php

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+<?php
+
+namespace App\Filament\Resources\AiModelResource\Pages;
+
+use App\Filament\Resources\AiModelResource;
+use Filament\Actions;
+use Filament\Resources\Pages\CreateRecord;
+use Illuminate\Http\Request;
+
+class CreateAiModel extends CreateRecord
+{
+    protected static string $resource = AiModelResource::class;
+
+    public function mount(): void
+    {
+        parent::mount();
+
+        if ($sourceRecordId = request()->query('sourceRecord')) {
+            $sourceRecord = \App\Models\AiModel::find($sourceRecordId);
+            if ($sourceRecord) {
+                $this->form->fill($sourceRecord->attributesToArray());
+            }
+        }
+    }
+
+    protected function getRedirectUrl(): string
+    {
+        return $this->getResource()::getUrl('index');
+    }
+}

app/Filament/Resources/AiModels/Pages/EditAiModel.php

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+<?php
+
+namespace App\Filament\Resources\AiModelResource\Pages;
+
+use App\Filament\Resources\AiModelResource;
+use Filament\Actions;
+use Filament\Resources\Pages\EditRecord;
+
+class EditAiModel extends EditRecord
+{
+    protected static string $resource = AiModelResource::class;
+
+    protected function getHeaderActions(): array
+    {
+        return [
+            Actions\DeleteAction::make(),
+        ];
+    }
+
+    protected function getRedirectUrl(): string
+    {
+        return $this->getResource()::getUrl('index');
+    }
+}

app/Filament/Resources/AiModels/Pages/ListAiModels.php

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+<?php
+
+namespace App\Filament\Resources\AiModelResource\Pages;
+
+use App\Filament\Resources\AiModelResource;
+use Filament\Actions;
+use Filament\Resources\Pages\ListRecords;
+use Illuminate\Contracts\Pagination\Paginator;
+use Illuminate\Database\Eloquent\Builder;
+
+class ListAiModels extends ListRecords
+{
+    protected static string $resource = AiModelResource::class;
+
+    protected function getHeaderActions(): array
+    {
+        return [
+            Actions\CreateAction::make(),
+        ];
+    }
+
+    protected function shouldPersistTableFiltersInSession(): bool
+    {
+        return true;
+    }
+
+    protected function shouldPersistTableSortInSession(): bool
+    {
+        return true;
+    }
+
+    protected function shouldPersistTableSearchInSession(): bool
+    {
+        return true;
+    }
+
+    protected function paginateTableQuery(Builder $query): Paginator
+    {
+        $paginator = parent::paginateTableQuery($query);
+        return $paginator;
+    }
+
+    public function updatedTablePage($page)
+    {
+        $this->dispatch('table-pagination-updated', ['tableId' => $this->id, 'page' => $page]);
+    }
+
+    protected function getTableQueryStringIdentifier(): ?string
+    {
+        return 'ai-models-table';
+    }
+}