G
GAI coding assistant and agents for editors, terminal, desktop and GitHub
Free, from $10/mo
JetBrains AI vs OpenAI Codex
Pricing, features, platforms and who each one suits — side by side.
J
Choose JetBrains AI if…
- you work on JetBrains
- you're in its core audience: software developers, jetbrains ide users
O
Choose OpenAI Codex if…
- you want the lower entry price ($8/mo vs $10/mo)
- you need an API to build on
- you work on iOS, Slack
- you're in its core audience: software developers, engineering teams
Side by side
Feature JetBrains AI OpenAI Codex
Pricing modelFreemiumFreemium
Starting price$10/mo$8/mo
Free plan
Free trial
API
Open source
Security and compliance—SOC 2 Type II, ISO 27001, GDPR, HIPAA
Updates, last 90 days—5
Agent mode
CLI / terminal
Cloud agents
AI PR review
Bring your own key—
MCP support—
PlatformsWeb, JetBrainsWeb, iOS, API, Slack
CategoryCode AssistantsCode Assistants
CompanyJetBrains s.r.o.OpenAI OpCo, LLC
Based inCzech RepublicUnited States
Founded——
Part of——
Key features
J JetBrains AI
- Run multiple coding agents in parallel across projects
- Supports Claude Agent, Codex, Junie, Copilot and OpenCode
- Connect other agents through the Agent Client Protocol (ACP)
- Review agent diffs and comment on specific lines
- Event-triggered automations for PRs, merges, issues and commits
- Bring your own provider subscription or API keys
- Shared cloud environments with team-wide MCP servers
- Admin controls over which models and agents people can use
O OpenAI Codex
- Desktop app for local coding chats
- Command-line interface (CLI)
- IDE extension
- Cloud tasks through Codex on the web
- Automatic GitHub code review
- Slack integration
- SDK for scriptable workflows
- Works with an API key and pay-per-use billing
Plans and prices
From each vendor's site. Prices change — confirm before buying.
JetBrains AI
AI FreeFree
AI TrialFree
AI Pro$10 or $20 (two figures listed)
AI Ultimate$30 or $60 (two figures listed)
AI Enterprise$60
OpenAI Codex
Free$0/month
Go$8/month
Plus$20/month
ProFrom $100/month
Business$20/user/month billed annually; $25 billed monthly
Enterprise & EduContact sales
API KeyPay per usage
Strengths and limitations
JetBrains AI
- Free tier includes 3 AI credits every 30 days
- Works with several third-party agents, not only JetBrains' own
- Accepts your own API keys or provider subscriptions
- Purchased credits stay valid for 12 months
- The free tier does not allow buying extra credits
- The IDE plugin for Air is in alpha
- Mobile app is listed as coming soon
- AI Free is not available in Android Studio or the Community editions of PyCharm and IntelliJ IDEA
OpenAI Codex
- Free plan includes basic Codex use in the desktop app
- Available in the desktop app, CLI, IDE, web, iOS and SDK
- Enterprise controls such as SCIM, RBAC, EKM and data residency
- API key option for pay-per-use billing
- Free and Go plans have no published usage numbers
- Plus usage limits are given only as estimated ranges
- API key use doesn't include cloud features such as code review or Slack
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Built from each vendor's public website; we haven't tested them hands-on. Editorial policy