Are the RGE for the quartic couplings all accurate in case of the GTHDM? There appears to be a discrepancy when compared to known models (2HDM, Type-II seesaw) in the appropriate limit.

At least they should. Could you give some more details about the problems you found.
Thanks

For example, we expect the O(LambdaH^2) term in 1loop-beta function for LambdaH to be 32*LambdaH^2 just by replacing the 2HDM couplings in the 2HDM beta functions (the way they are defined in the SARAH model files) by appropriate GTHDM couplings. However, the RGE output for GTHDM is giving 88*LambdaH^2. There are other similar cases.

Hi,

that might be related to the missing quartic coupling because they should give contributions equivalent to those involving lambda_4 and lambda_5 in THDMs, or?

Cheers,
Florian