kitio.aiOpenAI Codex vs Amp
A side-by-side look at pricing plans, free tiers, features, pros and cons, updated for 2026. OpenAI Codex has the lower starting price: about $8 a month, against $20 for Amp.
At a glance
Best for
Pricing model
Starting price
Free plan
Made by
Based in
Rating
Key features
- Cloud coding tasks
- Codex CLI
- IDE extension
- Desktop app
- Automatic PR review
- Terminal and editor agent
- Cloud orbs
- Shared threads
- Subagents
- Daily free credits
| Feature | OpenAI Codex | Amp |
|---|---|---|
| Best for | OpenAI's coding agent in the cloud, CLI, IDE and desktop app | Frontier coding agent with cloud orbs and pass-through pricing |
| Category | Coding | Coding |
| Pricing model | Freemium | Freemium |
| Starting price | $8/mo | $20/mo |
| Free plan | Yes | Yes |
| Made by | OpenAI | Amp Frontier Corporation |
| Based in | United States | United States |
| Rating | No ratings yet | No ratings yet |
| Key features |
|
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Pricing compared
OpenAI Codex has the lower starting price: about $8 a month, against $20 for Amp.
Free plan
Cheapest paid plan
Top plan
Free trial
6 plans
Free
Free
- Limited Codex usage
- Via ChatGPT account
Go
$8/mo
- ChatGPT Go plan
- More Codex usage than Free
Plus
$20/mo
- ChatGPT Plus plan
- Codex in CLI, IDE and cloud
Pro
$100/mo
- Starting price; $200 and $500 tiers
- Highest Codex limits
Business
$25/mo
- Per user
- Shared workspace and admin controls
Enterprise
Contact sales
- Enterprise security
- Flexible usage
2 plans
Individual
$20/mo
- All product features
- 45,000 minutes of hosted orbs
- Unlimited self-hosted orbs
Enterprise
Contact sales
- Bring your own keys
- Higher quotas and rate limits
- Priority support and invoicing
Prices in USD, checked Oct 28, 2026 or later. Plans change often, so confirm on each tool's site before you buy.
Pros and cons
OpenAI Codex
- Included in ChatGPT plans
- Runs many tasks in parallel
- Open-source CLI
- Token-based limits are hard to predict
- Free tier usage is small
Amp
- No markup on model usage
- Agents keep running in the cloud
- Team thread sharing
- Fewer model choices by design
- Pricing changed often in 2026
Which one should you choose?
Choose OpenAI Codex if you want:
- Included in ChatGPT plans
- Runs many tasks in parallel
- Open-source CLI
Watch out: token-based limits are hard to predict.
Choose Amp if you want:
- No markup on model usage
- Agents keep running in the cloud
- Team thread sharing
Watch out: fewer model choices by design.
OpenAI Codex vs Amp FAQ
What is the difference between OpenAI Codex and Amp?
OpenAI Codex: OpenAI's coding agent in the cloud, CLI, IDE and desktop app. Amp: Frontier coding agent with cloud orbs and pass-through pricing. Both are coding tools.
Is OpenAI Codex or Amp cheaper?
OpenAI Codex has the lower starting price: about $8 a month, against $20 for Amp.
Do OpenAI Codex and Amp have free plans?
OpenAI Codex: Yes. Amp: Yes.
Who makes OpenAI Codex?
OpenAI Codex is made by OpenAI, based in United States.
Who makes Amp?
Amp is made by Amp Frontier Corporation, based in United States.
Which should I choose, OpenAI Codex or Amp?
Choose OpenAI Codex if you value included in chatgpt plans and runs many tasks in parallel. Choose Amp if you value no markup on model usage and agents keep running in the cloud.