Welcome to Build Club

Introducing GPT-5.5

OpenAI releases GPT-5.5, a new model excelling at agentic coding, computer use, and knowledge work with improved reasoning, tool use, and token efficiency while maintaining latency parity with GPT-5.4.

What is Codex?

Codex is an AI agent designed to delegate real work across files, tools, and workflows, distinguishing itself from ChatGPT by executing tasks rather than conversational assistance.

Automations

Codex automations enable users to run recurring tasks on schedules and triggers, allowing proactive task execution like weekly reviews, morning briefs, and status updates without manual invocation.

Plugins and skills

Codex plugins connect to external tools and data sources, while skills teach Codex team-specific processes and workflows, enabling consistent execution of company-standardized tasks.

Working with Codex

Guide covering Codex workspace setup including sidebar navigation, projects linked to local folders, threads for conversations, and settings for customization and permissions management.

How to get started with Codex

Beginner tutorial for setting up Codex desktop app, creating projects and threads, selecting initial tasks, configuring permissions, and choosing appropriate reasoning levels for different task complexity.

Codex settings

Tutorial covering key Codex settings including prevent sleep mode, detail level, personalization, and avatar appearance to customize the agent's behavior and display preferences.

Top 10 uses for Codex at work

Collection of 10 practical Codex use cases with customizable prompts for tasks like creating daily briefs, pulling context from multiple tools, and automating workflow and reporting tasks.

Introducing workspace agents in ChatGPT

OpenAI launched workspace agents in ChatGPT, enabling teams to create and share cloud-based agents for handling complex workflows across organizational tools like CRM and ticketing systems.

Workspace agents

Educational guide explaining workspace agents as systems with triggers, processes, and tool integrations designed for repeatable organizational workflows, with core concepts for building consistent agent implementations.