OpenAI's Codex GPT 5 is out and it's pretty simple to use. I do not recommend the prompt I typed in the video. It was on the fly, and spontaneous. Instead I'd recommend using OpenAI's prompt optimizer to get better results. OpenAI Prompt Optimizer https://platform.openai.com/chat/edit?optimize=true Here are the original prompts I used in the video Prompt 1 (not recommended) build an app for me that optimizes prompts for chatgpt, claude and Gemini. It should be simple and easy to use with drop menus for picking the chat model, and default roles list to assign a role or define my own. It should also have a copy button, so I can copy prompts once they are ready. A simple text box to enter my original prompt should also be there. Add anything or change anything that you think might be helpful. Prompt 2 it needs to connect to an llm with an api key so it can generate optimized prompts for me.

The Youtube video is a step by step walk through. If you get stuck, refer to the attached workflow. How to use the workflow: 1. Import workflow into n8n 2. Enter your own credentials for each node (Telegram, OpenAI, Google Calendar) 3. Run it Challenge: Once you build the entire workflow, try re-doing it yourself from start to finish without looking at the video or using the attached workflow p.s. If you get stuck, ask for help in the "Bugs and Problems" tab and make sure to keep it short and sweet (Attach a video or pic of what problem you're facing)