Comparison

Azure PlayFab vs OpenAI Codex

	Azure PlayFab	OpenAI Codex
What it says it does	Azure PlayFabPlayFab is the complete backend platform for live games. Build cross-platform multiplayer, LiveOps, economy, and player identity services. Free to start.	OpenAI CodexOpenAI's coding agent. Codex works in a desktop app, on the web, in a CLI, in IDE extensions and on iOS, can run tasks in cloud sandboxes, and reviews GitHub pull requests.
Pricing	Azure PlayFabDevelopment Mode free (up to 10 titles, up to 1,000 lifetime players per title); Pay-as-you-go $0/mo plus metered usage; Standard $99/mo with included meters; Premium $1,999/mo; Foundation Mode included free for titles shipping on Xbox (official)	OpenAI CodexIncluded with ChatGPT plans: Free $0 and Go $8/mo (desktop app, lighter model); Plus $20/mo (web, CLI, IDE, cloud code review); Pro $100, $200 or $500/mo; Business $25/user/mo billed monthly; or pay API rates with an API key (official)
Website	Azure PlayFabhttps://developer.microsoft.com/en-us/games/products/playfab/	OpenAI Codexhttps://chatgpt.com/codex/

Which tool for which job

Azure PlayFab wins when you want hosted player accounts, economy and LiveOps with a free start, especially if you ship on Xbox.

OpenAI Codex wins when you want one subscription that covers chat and a coding agent across terminal, IDE and cloud.