Most people open ChatGPT, fire off a prompt, get an OK answer, and move on. The thing that quietly separates the people getting incredible results from everyone else isn't a secret prompt — it's that they spent 5 minutes on Custom Instructions and never had to repeat themselves again. Custom Instructions sits in your settings. It's two text boxes ChatGPT reads silently before every reply, in every chat. Set it up once and the model already knows who you are and how you want to be answered. Here's the 5-minute setup that actually moves the needle: Box 1 — "What would you like ChatGPT to know about you?" Drop in three things: what you do, who you serve, and what you're working on right now. Example: "I run a SaaS business in customer support automation. My audience is small-business owners and marketing teams. I'm focused on growth and content right now." Skip hobbies and personal trivia — keep it work-focused. Box 2 — "How would you like ChatGPT to respond?" This is where most people leave money on the table. Tell it the tone, the format, and the things you don't want. Example: "Be direct and concise. Skip disclaimers and preambles. When I ask for copy, give me three variations. When I ask strategy questions, push back if my thinking is weak. Use plain English, not corporate-speak." Save it, open a new chat, ask the same question you've been asking for weeks. The difference is immediate. Two things to watch out for: don't stuff it with everything you can think of (the model weighs it heavier than you'd expect, and bloated instructions make answers worse not better), and revisit it every couple of months as your work shifts. What's in your Custom Instructions right now? Drop a line or two below — happy to suggest tweaks. Jason 🙌

I’ve been digging into it today, and it’s definitely a noticeable step forward from 5.4 in a few key areas. GPT-5.5 is the strongest agentic coding model to date. On Terminal-Bench 2.0, which tests complex command-line workflows requiring planning, iteration, and tool coordination, it achieves a state-of-the-art accuracy of 82.7%. Here’s what stood out straight away: • Stronger reasoning and accuracy It feels more reliable when working through complex tasks, especially anything that involves multiple steps or deeper thinking. • Better at real-world work Writing, research, analysing data, structuring ideas… it just handles these more smoothly without needing as much back-and-forth. • Improved coding + technical help If you’re building apps, automations, or workflows, the responses feel cleaner and more usable first time. • More consistent outputs Less randomness, fewer weird replies, and generally more predictable results when you give it a clear prompt. • Handles larger context even better Great if you’re working with long documents, big prompts, or ongoing projects. What this actually means for us For most people here, it’s not about “new features”… it’s about getting better results faster. • Fewer prompt tweaks • More usable first drafts • Better outputs for clients • More reliable automations If you’re using ChatGPT daily for business, content, or building tools… this should make things noticeably smoother.