How is deepseek flash for coding?

Guys I am new to the AI vibe coding space. Is deepseek flash good enough for coding? I personally am working on web application and mobile application via react and react native and I am using opencode. Entire code is done via AI including the backend. Flash is nearly free if we use deepseek api (just found out its free in openrouter), I was thinking of getting into V4 pro directly instead of flash because I don’t think it is really great at coding(my assumption) what do you think? I was confused between de