Couture AI interview questions

I had interviewed with them for SDE position. The questioning was mostly on basics, and the tech team were pleasant to speak, including the manager. However, had pretty bad experience talking to one of the co-founders during compensation discussion. They didn't want to rollout an offer but wanted me to start exit process after getting an email confirmation. And he even negotiated from my expected amount which I had initially stated during the screening call. Basically they want the candidate to take all the risk. Advice: Have a transparent process - related to compensation