Mates

Codex

by OpenAI

OpenAI's coding agent that works in the CLI, IDE, ChatGPT apps and cloud environments, with subagents and scheduled tasks.

WebsiteChangelogGitHub
Pricechatgpt.com/pricing
Included in plans from Free
Limited on ChatGPT Free; more usage on paid plans
Licensegithub.com/openai
Open source
CLI is Apache-2.0; ChatGPT apps and cloud are closed
Platformslearn.chatgpt.com/docs
Command line, Desktop, Web, iOS, Slack
IDE extension; GitHub and Linear integrations
Launchedgithub.com/openai
Apr 13, 2025
CLI repo created

What it can do

The same 11 checks for every agent, each linked to the page it came from.

Its own cloud computerYesCodex Cloud environmentsDocs
Uses a web browserYesBrowser and computer use capabilitiesDocs
Remembers between chatsYesMemories and AGENTS.mdDocs
Routines and schedulesYesScheduled tasksDocs
App connectors or MCPYesMCPDocs
Asks before risky actionsYesPermission modes, sandboxing and auto-reviewDocs
Teams or several agentsYesSubagentsDocs
Works in iMessage, WhatsApp or TelegramNot documentedThe maker's pages don't sayNo source says
VoiceYesDocs list a Voice capabilityDocs
Bring your own model or keyYesAPI keys, Bedrock or a gatewayDocs
Can be self-hostedYesOpen source CLI runs locallyGitHub

How it differs from Mates

A coding agent tied to ChatGPT and code repos; Mates gives general-purpose mates their own hosted computers and email addresses.

See Mates' entry

Similar agents

Other coding agents in the directory.

AiderOpen source AI pair programmer in the terminal that edits your repo with almost any model and commits changes to git.Aider AI · Free
AmpCoding agent for the CLI and web whose agents keep working in remote machines called orbs, waking on events or schedules.Amp · Free
CapyRuns fleets of cloud coding agents on Capy VMs, started from the web, desktop, Slack or Linear, on triggers or cron.Capy Corporation · $20/mo
Claude CodeAgentic coding tool that reads your codebase, edits files and runs commands from the terminal, IDE, desktop app or web.Anthropic · $20/mo

Checked against OpenAI's own pages.

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