Cochlear Implants (CI) have been successful at restoring meaningful hearing perception in many deaf patients. However, rehabilitation for patients with damaged auditory nerves are scarce: the only alternative is the Auditory Brainstem Implant (ABI), which presents poor clinical outcomes and difficult surgical approach.Here, we propose to target the auditory cortex directly, using a soft auditory cortex implant, for hearing restoration. By leveraging microfabrication techniques, we developed soft Electrocorticography (ECoG) arrays that would conform the curvilinear surface of the cortex, supporting high resolution long-term stimulation. This ECoG technology is based on polyimide/platinum/polyimide microscopic serpentines, embedded in between two silicone membranes and soft platinum-silicone electrode coating. The approach was then tested and validated in rhesus macaques, both electrophysiologically and behaviorally. We implanted two animals with the soft ECoG (29 and 30 channels, electrode ⌀ = 300µm) over the auditory cortex subdurally. Additionally, the non-human primates were trained at an auditory discrimination task for several months, where they had to discriminate between acoustic tone frequencies. Introduction of electrical stimulation within the discrimination task permitted direct evidence of the auditory nature of the evoked percept, as well as the ability to differentiate between activation through distinct electrodes of the ECoG. Bilateral ECoG implantation during intra-operative testing allowed to reveal contralateral cortical responses to electrical stimulation of the auditory cortex, matching acoustic tonotopic maps.These results open the perspective of a novel approach to target auditory loss, allowing for a minimally invasive surgical approach in addition to a precise implant placement.