Airfoil and corresponding guide vane, blade, gas turbine and turbomachine

An airfoil of a gas turbine, the airfoil suitable for being arranged in a compressor section of the gas turbine, the airfoil comprising:

• a platform;
• a pressure surface and a suction surface, extending substantially perpendicular to the platform along a first direction, the first direction being defined as a direction substantially perpendicular to the platform and progressing with a distance to the platform;
• a tip region between the pressure and the suction surface opposite to the platform, the tip region being a distant end of the airfoil in direction along the first direction and being configured such that the tip region comprises:
• a first surface with a first surface expanse less than a cross sectional plane of the airfoil perpendicular to the first direction and with a first distance to the platform along the first direction,
• a second surface with a second surface expanse and with a second distance to the platform along the first direction,
• wherein the first distance is greater than the second distance, and
• wherein the first surface and the second surface together build a profiled surface, the profiled surface being a ribbed surface, and
• wherein the material of the first surface is deformable such that the material of the first surface bends away from a direction of rotation of the airfoil during operation.