Compare Codex for Chrome and Claude for Microsoft 365 - features, pricing, and which is better for your workflow.
What is Codex for Chrome?
OpenAI's Codex Chrome extension — let Codex work inside your browser on signed-in sites for research, form-filling, dashboards, and multi-step workflows.
Price: Free
Runs in parallel across tabs without taking over your active session
Acts on signed-in sites (Gmail, LinkedIn, Salesforce, internal tools)
Writes and runs code to navigate pages and complete tasks
Picks the best tool per step — plugins, in-app browser, or Chrome
Use Claude inside Word, Excel, PowerPoint, and Outlook — context carries across all four apps so you can move from email to doc to deck in one conversation.
Price: Freemium
Works inside Word, Excel, PowerPoint, and Outlook (Outlook in beta)
Context carries across all four apps
Tracked changes in Word, highlighted cells in Excel, draft reviews in Outlook
Preserves templates, formatting, heading styles, and formula conventions
Skills to save and reuse workflows, plus voice dictation and connectors