GPT-5.2 Prompting Guide - dug out of my bookmarks
I was just sorting out some of my bookmarks/favourites and came across this link I had saved a while ago. It's obviously been updated for 5.2, and if you've not already seen it, it's worth a read. https://cookbook.openai.com/examples/gpt-5/gpt-5-2_prompting_guide. I've yet to look up guides for others like Gemini, Claude etc. What AI had to say about this guide 'This guide introduces GPT-5.2, OpenAI’s advanced model for enterprise and agent workflows. It improves accuracy, instruction-following, concise formatting, and structured reasoning over previous versions, making it ideal for complex tasks like coding, document analysis, finance, and multi-tool operations. The guide offers best practices for writing effective prompts: set clear output length and content limits, prevent scope drift, handle long documents by summarizing, address ambiguity by clarifying or listing interpretations, and always ground answers in provided or cited sources. It also covers techniques for context compaction, agent updates, tool usage, structured data extraction, prompt migration, and in-depth web research—optimizing GPT-5.2 for reliability, consistency, and high-quality results in production settings.' There is also the link to the Prompt Optimiser that's been around for a while too. AI summarised this about it 'The Prompt Optimizer referenced in the GPT-5.2 Prompting Guide is a tool built into the OpenAI Playground. It’s specifically designed to help users improve existing prompts and facilitate migration across OpenAI models, including from GPT-5 and earlier versions to GPT-5.2.' Hope it's helpful for those who have not yet come across it.