OpenAI Codex vs v0 (2026)
Pricing, features and who each one is for, checked against both vendors' pricing pages in November 2026.
Quick verdict: These solve different jobs: OpenAI Codex is a coding agent (cloud, cli, ide), v0 is a ai ui and full-stack app builder. Many developers use one of each. OpenAI Codex is cheaper to start (from $20/mo). Pick OpenAI Codex for professional developers, AI coding agents for the terminal, teams. Pick v0 for beginners, professional developers.
Affiliate disclosure: some links on this page are affiliate links. If you sign up through them we may earn a commission, at no additional cost to you. It never changes our verdicts. How this works.
Side by side
| OpenAI Codex | v0 | |
|---|---|---|
| Type | Coding agent (cloud, CLI, IDE) | AI UI and full-stack app builder |
| Made by | OpenAI | Vercel |
| Free tier | No | Yes |
| Starts at | From $20/mo | From $30/mo |
| Plans | Included in ChatGPT Plus $20/mo, Pro $100/mo, Business $20/user/mo (2+ seats, annual) | Free (7 messages/day), Plus $30/user/mo, Business $100/user/mo, Enterprise custom |
| Open source | No | No |
| Runs in | Cloud, CLI, IDE extension, ChatGPT app | Web, iOS |
OpenAI Codex strengths
- Included with ChatGPT plans you may already pay for
- Parallel cloud agents that keep running when you close your laptop
- Automatic PR review
v0 strengths
- Best-in-class React and Next.js output
- Deploys straight to Vercel
- Design Mode for visual edits
OpenAI Codex drawbacks
- Usage caps on Plus are aimed at focused sessions
- Best experience assumes a ChatGPT account and GitHub repos
v0 drawbacks
- Free tier capped at 7 messages a day
- Token usage can climb quickly on big projects
Read the full reviews: OpenAI Codex · v0