Claude Fable 5 system prompt leaked on GitHub within 24 hours, exposing 120,000 characters of hidden rules, safety limits, and secret restrictions.

Anthropic Claude provides open access to their system-wide prompt. I analyze the portions dealing with AI mental health guidance. An AI Insider analysis and scoop.

GPT-5’s system prompt just leaked to Github, showing what OpenAI wants ChatGPT to say, do, remember … and not do. Unsurprisingly, GPT-5 isn’t allowed to reproduce song lyrics or any other copyrighted ...

Prompt engineering is the process of crafting inputs, or prompts, to a generative AI system that lead to the system producing better outputs. That sounds simple on the surface, but because LLMs and ...

The system prompt for OpenAI’s Codex CLI contains a perplexing and repeated warning for the most recent GPT model to “never talk about goblins, gremlins, raccoons, trolls, ogres, pigeons, or other ...

Your LLM-based systems are at risk of being attacked to access business data, gain personal advantage, or exploit tools to the same ends. Everything you put in the system prompt is public data.

Anthropic released the underlying system prompts that control their Claude chatbot’s responses, showing how they are tuned to be engaging to humans with encouraging and judgment-free dialog that ...

Learn prompt engineering with this practical cheat sheet that covers frameworks, techniques, and tips for producing more accurate and useful AI outputs. Every day, millions of people type something ...

Prompt engineering tools help optimize AI-generated responses. Discover the best tools, compare features, and find the right ...

What happens when the inner workings of a $10 billion AI tool are exposed to the world? The recent leak of Cursor’s system prompt has sent shockwaves through the tech industry, offering an ...

A coaching tool built into artificial intelligence (AI)-powered systems may raise user awareness of bias in AI algorithms and help individuals better prompt generative AI tools to produce more ...