Curated list of the best AI tools for prompt engineers
RAG reduced hallucination rate from 41% to 5% on knowledge-intensive QA benchmarks, with a 54% improvement in factual ac.—Lewis et al., 'Retrieval-Augmented Generation for …
AI Prompt Architect is a visual prompt engineering platform that helps developers, marketers, and teams build production-grade AI prompts using the STCO (System, Task, Context, Output) framework. Generate structured prompts for ChatGPT, Claude, Gemini, and DeepSeek in seconds.
The STCO framework structures prompts into four clear components: System (role and constraints), Task (what the AI should do), Context (background information), and Output (desired format and quality). This systematic approach produces consistently higher-quality AI responses compared to freeform prompting.
Free tier: 3 generations/month. Pro: £9.99/month unlimited. Enterprise: £29.99/month with team features.
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