PromptPerfect
Prompt optimizer and generator by Jina AI that rewrites and refines prompts to get better results from AI models.
About
PromptPerfect is a prompt engineering platform that automatically improves prompts for models including GPT-4, Claude, Llama, Stable Diffusion, and Midjourney. Paste a rough prompt and it returns a refined version tuned for the target model, with options to set tone, length, and other parameters. It also includes debugging tools and lets you deploy optimized prompts as hosted API endpoints. A free tier with limited daily credits is available, and paid plans start at around $20 per month for heavier daily use, with a seven-day free trial on all plans.