PromptPerfect
Automated prompt optimization tool for text and image models — shutting down September 2026.
Description
Short Intro: PromptPerfect was an AI-powered prompt optimization platform built by Jina AI, a Berlin-based AI company founded by Han Xiao. Elastic (NYSE: ESTC) acquired Jina AI in October 2025 for its embedding models and neural search technology, and scheduled PromptPerfect for shutdown since the product sits outside Elastic's enterprise search roadmap. New signups closed in June 2026, the platform shuts down September 1, 2026, and user data is deleted October 1, 2026. Existing users can export saved prompts via Settings before the September deadline.
Key Capabilities:
Automated prompt rewriting for clarity, coherence, and task alignment across LLMs including GPT-4 and Claude
Multi-model support for both text models and image generation models including DALL-E, Midjourney, and Stable Diffusion
Reverse prompt engineering by uploading an image to extract and improve the generating prompt
Multi-goal optimization balancing quality, cost, and token efficiency simultaneously
Context-sensitive prompt improvement based on intended use case
REST API for programmatic prompt optimization
Browser extension for in-browser prompt refinement
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