“Build a 10-slide HTML deck from sales.csv using brand.css (16:9). Sections: KPIs, regions, outlook. Export PDF.”
Try this task →Tutorial
How to Use Codex
A simple workflow — from signing in to downloading work you're happy with.
1
Sign in to ChatGPT
Click any "Try free" button on this site to open Codex at chatgpt.com — no app install. Create a free ChatGPT account or sign in; Codex is available on the free plan with usage limits.
2
Open Codex
Enter the Codex area. Connect GitHub if your materials are in a repo, or attach / describe files and links in your task.
3
Describe the outcome
Write like you're briefing a colleague: audience, format (PDF, slides, CSV), sources, tone, and what “done” means.
4
Review the deliverable
Open previews, downloads, or diffs. Check facts, layout, and completeness — same as reviewing a teammate's work.
5
Refine together
Ask for specific edits. Codex updates the work until you're ready to present, publish, or ship.
Tips for better results
- Start with one clear deliverable — e.g. “8-slide PDF from this CSV” beats “help with my job.”
- Share brand rules once (colors, fonts, slide template) and ask Codex to reuse them.
- Say what to verify: row counts, chart totals, page count, export format.
- If the first draft is close, iterate on the brief rather than starting over.
Codex Task Examples
Paste, customize with your files and brand, and let Codex deliver.
Reports & slides
“Turn this meeting outline into slide HTML, then generate PPTX via python-pptx using template.pptx as the master.”
Try this task →Data & research
“Clean survey.csv: remove incomplete rows, segment by region, plot NPS by cohort, write executive_summary.md.”
Try this task →“Merge competitor_urls.txt findings into a comparison table: pricing, positioning, gaps. Output Markdown + CSV.”
Try this task →E-commerce & ops
“From products.csv, write platform-specific titles and 5 bullets for Amazon, Shopee, and Shopify. Respect char limits.”
Try this task →“Reconcile orders.csv and inventory.csv — flag SKU mismatches, output restock_alerts.csv.”
Try this task →Media & engineering
“From transcript.srt: chapter titles, 3 description variants, 15 tags, and thumbnail headline options.”
Try this task →“Fix the race condition in OrderProcessor — add a lock and a test. Keep existing checkout tests green.”
Try this task →Ready to work with Codex?
Open Codex in ChatGPT — describe your task, review deliverables, refine until it's right.