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Building self-improving tax agents with Codex
See how OpenAI, Thrive, and Crete built a self-improving tax agent with Codex, automating filings, improving accuracy, and accelerating workflows.
How Virgin Atlantic ships faster with Codex
How Virgin Atlantic used Codex to ship its revamped mobile app on a fixed holiday travel deadline, reaching near-total unit test coverage and zero P1 defects.
How Ramp engineers accelerate code review with Codex
How Ramp engineers use Codex with GPT-5.5 to review code and ship improvements, allowing them to get substantive feedback in minutes instead of hours.
How sales teams use Codex
See how sales teams can use ChatGPT Codex to create pipeline briefs, meeting prep packets, forecast reviews, account plans, and stalled-deal diagnoses from real work inputs.
How business operations teams use Codex
See how business operations teams can use Codex to create initiative briefs, strategy updates, leadership decision packets, progress updates, and more from real work inputs.
How data science teams use Codex
See how data science teams can use Codex to build root-cause briefs, impact readouts, KPI memos, scoped analyses, and dashboard specs from real work inputs.
How finance teams use Codex
See how finance teams can use Codex to build MBRs, reporting packs, variance bridges, model checks, and planning scenarios from real work inputs.
How NVIDIA engineers and researchers build with Codex
Teams use Codex with GPT-5.5 to ship production systems and turn research ideas into runnable experiments.
Choco automates food distribution with AI agents
How Choco used OpenAI APIs to streamline food distribution, boost productivity, and unlock growth—an in-depth customer story on real-world AI impact.
How to use Codex for everyday work
Explore 10 practical Codex use cases to automate tasks, create deliverables, and turn real inputs into outputs across tools, files, and workflows.
Automations
Learn how to automate tasks in Codex using schedules and triggers to create reports, summaries, and recurring workflows without manual effort.
How to get started with Codex
Learn how to get started with Codex by setting up projects, creating threads, and completing your first tasks with step-by-step guidance.
Plugins and skills
Learn how to use Codex plugins and skills to connect tools, access data, and follow repeatable workflows to automate tasks and improve results.
What is Codex?
Learn how Codex helps you go beyond chat by automating tasks, connecting tools, and producing real outputs like docs and dashboards.
Working with Codex
Learn how to set up your Codex workspace, create threads and projects, manage files, and start completing tasks with step-by-step guidance.
Codex settings
Learn how to configure Codex settings, including personalization, detail level, and permissions, to run tasks smoothly and customize your workflow.
Workspace agents
Learn how to build, use, and scale workspace agents in ChatGPT to automate repeatable workflows, connect tools, and streamline team operations.
Speeding up agentic workflows with WebSockets in the Responses API
A deep dive into the Codex agent loop, showing how WebSockets and connection-scoped caching reduced API overhead and improved model latency.
Brainstorming with ChatGPT
Learn how to use ChatGPT to brainstorm ideas, organize thinking, and turn rough concepts into structured, actionable plans.
Working with files in ChatGPT
Learn how to upload and work with files in ChatGPT to analyze data, summarize documents, and generate content from PDFs, spreadsheets, and more.