vs
OpenAI Codex vs Amp
OpenAI Codex scores higher overall (8.7 vs 7.7), but the right pick depends on what you need.
Choose OpenAI Codex if…
Developers who want parallel, asynchronous tasks and pull requests back, bundled with ChatGPT
8.7/10★★★★★Full review →Choose Amp if…
Experienced developers and teams running many parallel, long-running agents
7.7/10★★★★★Full review →Side by side
| OpenAI Codex | Amp | |
|---|---|---|
| Overall score | 8.7/10 | 7.7/10 |
| Rank in category | #1 of 13 | #5 of 13 |
| Price | Freemium · from $8/month | Freemium · from $20/month |
| Free version | Quick coding tasks on ChatGPT Free | All features free, paying only for cloud machine time or using your own runners and keys |
| Platforms | Web, iOS, VS Code, Terminal, Desktop app | Web, iOS, Desktop app, Terminal |
| Made by | OpenAI | Amp Frontier Corporation |
| Code quality | 9 | 8 |
| Ease of use | 8 | 7 |
| Features | 8.5 | 8 |
| Value for money | 9 | 7.5 |
| Platforms | 9 | 7.5 |
OpenAI Codex: what the AI does
- Cloud agent in sandboxed machines that delivers pull requests
- Open-source Codex CLI
- IDE extension and desktop app with multi-agent management
- Automatic GitHub code review
- Subagents, skills, hooks and MCP
- Codex Security vulnerability agent
- Top CLI agent on Terminal-Bench 2.0
- Low entry price, with free and $8 tiers
- Many surfaces: web, CLI, IDE, desktop, iOS
- Open-source CLI
- Async cloud tasks add latency for quick edits
- Only OpenAI models
- Free and Go tiers get a lighter model
Amp: what the AI does
- Per-thread cloud machines that keep working while you're away
- Multi-model routing (GPT and Claude models)
- An agent that coordinates other agents
- Automations and event-driven runs
- Team thread sharing, plugins and skills
- Agents keep running while you're away
- Use your own keys without markup
- Web, Mac, iPhone/iPad and terminal
- Strong team collaboration
- Opinionated: features can be removed without notice
- No IDE extension; work happens in its own apps or the terminal
- Long tasks can use a lot of credits or machine time