OpenAI Codex vs v0 by Vercel

Features, pricing, ratings, and pros and cons, side by side.

OpenAI Codex

OpenAI's coding agent that writes, reviews and runs code from terminal, IDE, desktop or cloud

Freemium

Visit website View details

v0 by Vercel

Describe an app in plain language and get a working Next.js project to deploy

Freemium

Visit website View details

Verdict

OpenAI Codex and v0 by Vercel are both Coding AI tools. Both have a free plan or trial. Only OpenAI Codex is available on Windows, macOS and Linux. Only v0 by Vercel is available on iOS.

Best overall

OpenAI Codex

Software developers
Engineering teams
Enterprise engineering organizations
Open-source maintainers

Choose OpenAI Codex if

You want a tool built for delegating coding tasks to an agent.
Included with ChatGPT plans, with a free tier and an $8 Go tier.
Open-source CLI under the Apache-2.0 license.

Choose v0 by Vercel if

You want a tool built for prototyping interfaces and landing pages.
Generates Next.js, React, Tailwind and shadcn/ui code with a live preview.
Built-in editor, Design Mode and GitHub pull request workflow.

Best for beginners: OpenAI Codex
Best for business: OpenAI Codex

Features

20 features compared.

Codex CLI
OpenAI Codex
Available
v0 by Vercel
Not available
IDE extension
OpenAI Codex
Available
v0 by Vercel
Not available
Desktop app
OpenAI Codex
Available
v0 by Vercel
Not available
Cloud tasks
OpenAI Codex
Available
v0 by Vercel
Not available
Code review
OpenAI Codex
Available
v0 by Vercel
Not available
Non-interactive mode
OpenAI Codex
Available
v0 by Vercel
Not available
MCP, skills and plugins
OpenAI Codex
Available
v0 by Vercel
Not available
Subagents and web search
OpenAI Codex
Available
v0 by Vercel
Not available
Session resume and images
OpenAI Codex
Available
v0 by Vercel
Not available
Mobile remote control
OpenAI Codex
Available
v0 by Vercel
Not available
Prompt-to-app generation
OpenAI Codex
Not available
v0 by Vercel
Available
Live previews
OpenAI Codex
Not available
v0 by Vercel
Available
Built-in code editor
OpenAI Codex
Not available
v0 by Vercel
Available
Design Mode
OpenAI Codex
Not available
v0 by Vercel
Available
Git integration
OpenAI Codex
Not available
v0 by Vercel
Available
Figma and screenshot import
OpenAI Codex
Not available
v0 by Vercel
Available
One-click deployment
OpenAI Codex
Not available
v0 by Vercel
Available
Model choice
OpenAI Codex
Not available
v0 by Vercel
Available
v0 API and SDK
OpenAI Codex
Not available
v0 by Vercel
Available
iOS app
OpenAI Codex
Not available
v0 by Vercel
Available

Pricing

Plans as listed by each vendor. Check their sites for current prices.

Pricing model
OpenAI Codex
Freemium
v0 by Vercel
Freemium
Free plan
OpenAI Codex
Yes
v0 by Vercel
Yes
Starting price
OpenAI Codex
$0
v0 by Vercel
$0
Plans
OpenAI Codex
7 plans
v0 by Vercel
4 plans

OpenAI Codex plans

Free
$0
Quick coding tasks
- GPT-6 Luna in the desktop app
- Subject to rollout
Go
$8/month
Lightweight coding tasks
- GPT-6 Luna in the desktop app
Plus
Most popular
$20/month
Focused coding sessions
- Web
- CLI
- IDE and iOS access
- Automatic code review and Slack
- GPT-6.1 Sol and GPT-6 Luna
- Can add credits
Pro
$100/month
Plans at $100, $200 or $500 per month
- Everything in Plus
- No five-hour limit currently
- Ultrafast mode on the $500 plan
Business
$25/user/mo
2 or more users; $20 per user per month when billed annually
- Desktop and mobile apps
- Larger cloud VMs
- Add-on credits
- SAML SSO and MFA
- No training on business data by default
Enterprise & Edu
Custom/user/mo
Contact sales
- Priority request processing
- SCIM
- EKM and RBAC
- User analytics
- Compliance API audit logs
- Retention and residency controls
API Key
Pay-as-you-go/usage
Billed at OpenAI API pricing
- Codex in the CLI
- SDK and IDE extension
- No cloud features
- Models depend on the API key

v0 by Vercel plans

Free
$0
Free access to v0, limited to 7 messages per day
- Deploy to Vercel
- Design Mode
- GitHub sync
- $5 one-time credits for new users
Plus
Most popular
$30/user/mo
For individuals and small teams, with $30 of monthly credits per user
- All models
- $2 free daily credits on login
- Shared chats
- Purchase additional credits
Business
$100/user/mo
For teams, with $30 of monthly credits per user
- Everything in Plus
- Training opt-out by default
- Centralized billing
- Shared credit purchases
Enterprise
Custom/custom
For large organizations, contact sales
- Everything in Business
- Data never used for training
- SAML SSO
- Role-based access control
- Priority access with no queues
- Support SLAs

Our ratings

Scored out of 10 by the Finder Atlas editorial team. Last reviewed October 2026.

OpenAI Codex: 8.5overall
v0 by Vercel: 8.4overall

OpenAI Codex leads in 1 category and v0 by Vercel in 1.

Code Generation
OpenAI Codex
9.0
v0 by Vercel
Not rated
Agentic Autonomy
OpenAI Codex
8.8
v0 by Vercel
Not rated
Ease of Use
v0 by Vercel leads by 0.5
OpenAI Codex
8.3
v0 by Vercel
8.8
Value for Money
OpenAI Codex leads by 0.7
OpenAI Codex
8.0
v0 by Vercel
7.3
Ecosystem & Integrations
OpenAI Codex
8.5
v0 by Vercel
Not rated
React/Tailwind Output Quality
OpenAI Codex
Not rated
v0 by Vercel
9.0
UI Polish
OpenAI Codex
Not rated
v0 by Vercel
8.8
Full-Stack Capability
OpenAI Codex
Not rated
v0 by Vercel
8.0

Scores weigh documented features, plan value, platform coverage, integrations and user feedback. A missing score means we have not rated that area yet.

Pros and cons

OpenAI Codex

Pros

Included with ChatGPT plans, with a free tier and an $8 Go tier
Open-source CLI under the Apache-2.0 license
Available in the terminal, VS Code-based editors, the ChatGPT desktop app and the cloud
Supports MCP, skills, plugins and subagents
API-key option lets teams pay at API rates instead of a subscription

Cons

Plus has message limits per five hours that vary widely by model
Cloud features are not available on the API Key plan
Higher usage needs Pro, which starts at $100 per month
Free and Go plans offer only GPT-6 Luna in the desktop app

v0 by Vercel

Pros

Generates Next.js, React, Tailwind and shadcn/ui code with a live preview
Built-in editor, Design Mode and GitHub pull request workflow
Deploys to Vercel from the same interface
Imports Figma designs, screenshots and existing GitHub repositories
Offers a REST API, TypeScript SDK and an iOS app

Cons

Free plan is limited to 7 messages per day
Credit-based billing makes monthly cost depend on model and prompt size
Centered on the Next.js and React stack; the full workflow assumes Vercel
Business costs $100 per user per month with the same $30 monthly credits as Plus
No Android app

Platforms

Web
OpenAI Codex
Supported
v0 by Vercel
Supported
Windows
OpenAI Codex
Supported
v0 by Vercel
Not supported
macOS
OpenAI Codex
Supported
v0 by Vercel
Not supported
iOS
OpenAI Codex
Not supported
v0 by Vercel
Supported
Android
OpenAI Codex
Not supported
v0 by Vercel
Not supported
API
OpenAI Codex
Supported
v0 by Vercel
Supported
Browser Extension
OpenAI Codex
Not supported
v0 by Vercel
Not supported
Linux
OpenAI Codex
Supported
v0 by Vercel
Not supported
CLI
OpenAI Codex
Supported
v0 by Vercel
Not supported
VS Code Extension
OpenAI Codex
Supported
v0 by Vercel
Not supported
JetBrains Plugin
OpenAI Codex
Supported
v0 by Vercel
Not supported

Integrations

OpenAI Codex

8 integrations

GitHub
Slack
Visual Studio Code
Cursor
Windsurf
Xcode
JetBrains IDEs
MCP

v0 by Vercel

8 integrations

GitHub
Vercel
Figma
shadcn/ui
Slack
MCP servers
Snowflake
Shopify

Company

Company
OpenAI Codex
Not listed
v0 by Vercel
Vercel
Founded
OpenAI Codex
Not listed
v0 by Vercel
2015
Headquarters
OpenAI Codex
Not listed
v0 by Vercel
San Francisco, CA
Monthly users
OpenAI Codex
4M+ weekly users
v0 by Vercel
Not listed
Listing
OpenAI Codex
Not claimed
v0 by Vercel
Claimed

Featured Coding AI

Picked by our editors. Not paid placement.

Frequently asked questions

Is OpenAI Codex better than v0 by Vercel?

It depends on your workflow. OpenAI Codex is built for delegating coding tasks to an agent. v0 by Vercel is built for prototyping interfaces and landing pages.

What are the key feature differences between OpenAI Codex and v0 by Vercel?

OpenAI Codex: OpenAI's coding agent that writes, reviews and runs code from terminal, IDE, desktop or cloud. v0 by Vercel: Describe an app in plain language and get a working Next.js project to deploy.

Does OpenAI Codex or v0 by Vercel have a free plan?

Yes, both do. OpenAI Codex is freemium and v0 by Vercel is freemium, and each has a free plan or trial.

Which is cheaper, OpenAI Codex or v0 by Vercel?

Both can be used for free. Paid plans differ in limits and features, so compare the tiers in the pricing table above.

Verdict

Best overall

Choose OpenAI Codex if

Choose v0 by Vercel if

Features

Pricing

OpenAI Codex plans

Free

Go

Plus

Pro

Business

Enterprise & Edu

API Key

v0 by Vercel plans

Free

Plus

Business

Enterprise

Our ratings

Code Generation

Agentic Autonomy

Ease of Use

Value for Money

Ecosystem & Integrations

React/Tailwind Output Quality

UI Polish

Full-Stack Capability

Pros and cons

OpenAI Codex

Pros

Cons

v0 by Vercel

Pros

Cons

Platforms

Integrations

OpenAI Codex

v0 by Vercel

Company

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Frequently asked questions