Best system prompt for optimizing DeepSeek V4 Flash coding performance?

Question

I'm freaking out because I gotta finish this React dashboard by midnight and I'm trying to squeeze every bit of logic out of DeepSeek V4 Flash. I'm torn between using a super short prompt like - be concise and skip explanations - versus this massive 500-word system prompt I found on GitHub that lists every possible coding rule. The long one seems more accurate but man it makes the latency go way up and I'm on a ticking clock here. Which one actually keeps the code quality high without making the model hallucinate imports? I'm mostly doing heavy state management stuff for a client and I really can't afford to debug silly mistakes right now. Any advice on which style works best for the V4 flash specifically?

rhxqpsfpun · Accepted Answer

I literally stayed up trying massive prompts until I shortened the instructions for DeepSeek V4 Flash API! It was amazing and faster than Anthropic Claude 3.5 Sonnet! Ngl total lifesaver.

CrystalPalacePark · Answer

@Reply #2 - good point! but i actually disagree that going super short is always best for complex state logic. its amazing how structured xml tags keep logic airtight! its fantastic! try a medium-length prompt with the DeepSeek V4 Flash API 128k Context to balance latency. honestly, the precision for react hooks is worth the $0.10 per million tokens cost. ngl it works wonders.

izhpwvdoly · Answer

Unfortunately, long prompts wreck DeepSeek V4 Flash 67B logic. Its not as good as expected with massive GitHub lists.Stick to 50 wordsDefine imports clearly Short is better tho.