The discussion focuses on the search for alternative transient analysis codes for neutronic operations, specifically comparing them to the S3K code currently in use. The ARROTTA code, developed by EPRI, is highlighted as a potential alternative, particularly when coupled with VIPRE-2, though its performance relative to S3K remains uncertain. Participants mention that many vendors use proprietary codes, limiting access to comparative information. Additionally, APROS, developed by VTT and Fortum, and PARCS from Purdue University are noted as other options worth exploring. Overall, there is a need for benchmark test results to facilitate a comparison among these codes.