Featured ChatGPT Guides

OpenAI API Cost Optimization: A focused guide to cost and throughput choices

Learn how model selection, prompt caching, Batch, Flex processing, token counting, and related OpenAI API cost considerations affect your analysis without assuming undocumented savings.

Mermaid Diagrams in ChatGPT for iOS Codex Tasks: What Is Supported

OpenAI says Mermaid diagrams render inline in ChatGPT for iOS Codex task transcripts. This guide explains the confirmed scope, practical uses, and limits.

OpenAI Codex for Knowledge Work: Research, Documents, and No-Code Workflows

A source-grounded guide to OpenAI Codex for knowledge work, including research, documents, data analysis, plugins, annotations, Sites, examples, and limits.

ChatGPT Health Guide: Connect Apple Health and Medical Records

ChatGPT Health can connect Apple Health and supported U.S. medical records. Learn how eligibility, permissions, syncing, memory, and disconnection work.

ChatGPT Unified Search Guide: Find Chats, Projects, Images, and Documents

ChatGPT unified search brings chats, Projects, images, and documents into one search view. Learn where it works, how to filter results, and what OpenAI has not confirmed.

ChatGPT Sites Guide: Build, Review, and Publish a Hosted Site

A source-grounded guide to ChatGPT Sites, covering suitable projects, version review, deployment, sharing controls, storage, limits, updates, and security.

AI Tools & Productivity

OpenAI & AI Trends

Latest Articles

Finances in ChatGPT: Connecting Accounts, Privacy, and Practical Limits

A source-based guide to Finances in ChatGPT, including eligibility, Plaid connections, account permissions, financial memories, data deletion, useful questions, and limits.

CHATGPT Custom Instructions Guide: How to Use the New 5,000-Character Limit

Learn who gets ChatGPT's 5,000-character custom instructions limit, what the setting changes, and how to write, review, and protect standing preferences.

ChatGPT Memory and Controls: A Practical Guide for 2026

A current guide to ChatGPT Memory, including memory summaries, saved memories, past-chat sources, deletion steps, Temporary Chat, and data controls.

ChatGPT Desktop App for Mac: Chat, Work, Codex, Voice, and App Access

A current guide to the ChatGPT desktop app for Mac, including ChatGPT Classic, system requirements, Option+Space, Work with Apps, Voice, privacy, and review limits.

ChatGPT Using Too Much RAM? An Evidence-Conscious Troubleshooting Guide

A practical, evidence-conscious guide to diagnosing high ChatGPT RAM use, isolating browser or app issues, protecting chat data, and preparing a useful support report.

5 AI Tools for Everyday Work: A Source-Checked Comparison

A source-checked comparison of ChatGPT, Claude, Gemini, Perplexity, and NotebookLM, with task fit, limitations, privacy questions, and verification advice.

7 Best Mobile AI Apps for iPhone and Android

Compare seven mobile AI apps for chat, research, work, study, and image creation, with a practical method for choosing the right tool on iPhone or Android.

How to Use ChatGPT for Writing Without Cheating

Use ChatGPT as an ethical writing assistant without outsourcing authorship. Learn permission, verification, disclosure, privacy, and AI detector limits.

Popular ChatGPT Guides

How to Use ChatGPT for Writing Without Cheating

Use ChatGPT as an ethical writing assistant without outsourcing authorship. Learn permission, verification, disclosure, privacy, and AI detector limits.

7 Best ChatGPT Writing Prompts for 2026

Seven reusable prompt patterns for moving from a writing brief to an outline, controlled draft, voice edit, format adaptation, and source check.

The Best ChatGPT Prompts for a More Productive Workday

Use practical ChatGPT prompts to prioritize tasks, turn notes into actions, improve drafts, compare options, and review work safely.

Mermaid Diagrams in ChatGPT for iOS Codex Tasks: What Is Supported

OpenAI says Mermaid diagrams render inline in ChatGPT for iOS Codex task transcripts. This guide explains the confirmed scope, practical uses, and limits.

How to Use ChatGPT Without an Account: What Works

Signed-out ChatGPT supports one temporary conversation in eligible regions, with fewer saved features and browser-specific privacy controls than an account.