diff --git a/system/Database/BaseBuilder.php b/system/Database/BaseBuilder.php
index ff3b16bf3c37..03988b6d9cd3 100644
--- a/system/Database/BaseBuilder.php
+++ b/system/Database/BaseBuilder.php
@@ -2454,7 +2454,7 @@ public function update(array $set = null, $where = null, int $limit = null): boo
 
 			$result = $this->db->query($sql, $this->binds, false);
 
-			if ($result->resultID)
+			if ($result->resultID !== false)
 			{
 				// Clear our binds so we don't eat up memory
 				$this->binds = [];
diff --git a/system/Model.php b/system/Model.php
index eb658cc7aa38..eb47315850ba 100644
--- a/system/Model.php
+++ b/system/Model.php
@@ -42,6 +42,7 @@
 use Closure;
 use CodeIgniter\Database\BaseBuilder;
 use CodeIgniter\Database\BaseConnection;
+use CodeIgniter\Database\BaseResult;
 use CodeIgniter\Database\ConnectionInterface;
 use CodeIgniter\Database\Exceptions\DatabaseException;
 use CodeIgniter\Database\Exceptions\DataException;
@@ -555,8 +556,12 @@ public function save($data): bool
 		else
 		{
 			$response = $this->insert($data, false);
-			// call insert directly if you want the ID or the record object
-			if ($response !== false)
+
+			if ($response instanceof BaseResult)
+			{
+				$response = $response->resultID !== false;
+			}
+			elseif ($response !== false)
 			{
 				$response = true;
 			}
@@ -658,7 +663,7 @@ public function getInsertID(): int
 	 * @param array|object $data
 	 * @param boolean      $returnID Whether insert ID should be returned or not.
 	 *
-	 * @return integer|string|boolean
+	 * @return BaseResult|integer|string|false
 	 * @throws \ReflectionException
 	 */
 	public function insert($data = null, bool $returnID = true)
@@ -734,7 +739,7 @@ public function insert($data = null, bool $returnID = true)
 				->insert();
 
 		// If insertion succeeded then save the insert ID
-		if ($result)
+		if ($result->resultID)
 		{
 			$this->insertID = $this->db->insertID();
 		}
@@ -912,7 +917,7 @@ public function updateBatch(array $set = null, string $index = null, int $batchS
 	 * @param integer|string|array|null $id    The rows primary key(s)
 	 * @param boolean                   $purge Allows overriding the soft deletes setting.
 	 *
-	 * @return mixed
+	 * @return BaseResult|boolean
 	 * @throws \CodeIgniter\Database\Exceptions\DatabaseException
 	 */
 	public function delete($id = null, bool $purge = false)
diff --git a/tests/system/Database/Live/ModelTest.php b/tests/system/Database/Live/ModelTest.php
index 6a2c0f4ac271..9a295568a349 100644
--- a/tests/system/Database/Live/ModelTest.php
+++ b/tests/system/Database/Live/ModelTest.php
@@ -409,7 +409,28 @@ public function testSaveNewRecordArray()
 
 	//--------------------------------------------------------------------
 
-	public function testSaveUpdateRecordObject()
+	public function testSaveNewRecordArrayFail()
+	{
+		$this->setPrivateProperty($this->db, 'DBDebug', false);
+
+		$model = new JobModel();
+
+		$data = [
+			'name123'     => 'Apprentice',
+			'description' => 'That thing you do.',
+		];
+
+		$result = $model->protect(false)
+			  ->save($data);
+
+		$this->assertFalse($result);
+
+		$this->dontSeeInDatabase('job', ['name' => 'Apprentice']);
+	}
+
+	//--------------------------------------------------------------------
+
+	public function testSaveUpdateRecordArray()
 	{
 		$model = new JobModel();
 
@@ -428,7 +449,29 @@ public function testSaveUpdateRecordObject()
 
 	//--------------------------------------------------------------------
 
-	public function testSaveUpdateRecordArray()
+	public function testSaveUpdateRecordArrayFail()
+	{
+		$this->setPrivateProperty($this->db, 'DBDebug', false);
+
+		$model = new JobModel();
+
+		$data = [
+			'id'          => 1,
+			'name123'     => 'Apprentice',
+			'description' => 'That thing you do.',
+		];
+
+		$result = $model->protect(false)
+						->save($data);
+
+		$this->assertFalse($result);
+
+		$this->dontSeeInDatabase('job', ['name' => 'Apprentice']);
+	}
+
+	//--------------------------------------------------------------------
+
+	public function testSaveUpdateRecordObject()
 	{
 		$model = new JobModel();
 
@@ -470,13 +513,30 @@ public function testDeleteBasics()
 
 		$this->seeInDatabase('job', ['name' => 'Developer']);
 
-		$model->delete(1);
+		$result = $model->delete(1);
+		$this->assertTrue($result->resultID !== false);
 
 		$this->dontSeeInDatabase('job', ['name' => 'Developer']);
 	}
 
 	//--------------------------------------------------------------------
 
+	public function testDeleteFail()
+	{
+		$this->setPrivateProperty($this->db, 'DBDebug', false);
+
+		$model = new JobModel();
+
+		$this->seeInDatabase('job', ['name' => 'Developer']);
+
+		$result = $model->where('name123', 'Developer')->delete();
+		$this->assertFalse($result->resultID);
+
+		$this->seeInDatabase('job', ['name' => 'Developer']);
+	}
+
+	//--------------------------------------------------------------------
+
 	public function testDeleteStringPrimaryKey()
 	{
 		$model = new StringifyPkeyModel();
@@ -496,13 +556,30 @@ public function testDeleteWithSoftDeletes()
 
 		$this->seeInDatabase('user', ['name' => 'Derek Jones', 'deleted_at IS NULL' => null]);
 
-		$model->delete(1);
+		$result = $model->delete(1);
+		$this->assertTrue($result);
 
 		$this->seeInDatabase('user', ['name' => 'Derek Jones', 'deleted_at IS NOT NULL' => null]);
 	}
 
 	//--------------------------------------------------------------------
 
+	public function testDeleteWithSoftDeleteFail()
+	{
+		$this->setPrivateProperty($this->db, 'DBDebug', false);
+
+		$model = new UserModel();
+
+		$this->seeInDatabase('user', ['name' => 'Derek Jones', 'deleted_at IS NULL' => null]);
+
+		$result = $model->where('name123', 'Derek Jones')->delete();
+		$this->assertFalse($result);
+
+		$this->seeInDatabase('user', ['name' => 'Derek Jones', 'deleted_at IS NULL' => null]);
+	}
+
+	//--------------------------------------------------------------------
+
 	public function testDeleteWithSoftDeletesPurge()
 	{
 		$model = new UserModel();
@@ -1483,6 +1560,52 @@ public function testInsertID()
 
 	//--------------------------------------------------------------------
 
+	public function testInsertResult()
+	{
+		$model = new JobModel();
+
+		$data = [
+			'name'        => 'Apprentice',
+			'description' => 'That thing you do.',
+		];
+
+		$result = $model->protect(false)
+			  ->insert($data, false);
+
+		$this->assertTrue($result->resultID !== false);
+
+		$lastInsertId = $model->getInsertID();
+
+		$this->seeInDatabase('job', ['id' => $lastInsertId]);
+	}
+
+	//--------------------------------------------------------------------
+
+	public function testInsertResultFail()
+	{
+		$this->setPrivateProperty($this->db, 'DBDebug', false);
+
+		$model = new JobModel();
+
+		$data = [
+			'name123'     => 'Apprentice',
+			'description' => 'That thing you do.',
+		];
+
+		$result = $model->protect(false)
+			  ->insert($data, false);
+
+		$this->assertFalse($result->resultID);
+
+		$lastInsertId = $model->getInsertID();
+
+		$this->assertEquals(0, $lastInsertId);
+
+		$this->dontSeeInDatabase('job', ['id' => $lastInsertId]);
+	}
+
+	//--------------------------------------------------------------------
+
 	public function testSetTable()
 	{
 		$model = new JobModel();