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OpenAI's coding agent spanning CLI, IDE, and cloud, available via standalone Codex plans or your ChatGPT subscription.
Pros
- Standalone tiers plus bundling into existing ChatGPT subscriptions
- Strong CLI + cloud + IDE coverage
- Backed by OpenAI's frontier model cadence
Cons
- Token-aligned usage caps reduce predictability
- Rolling-window rate limits can interrupt long sessions
- Heaviest usage still pushes toward $100+ tiers or API billing
✓ Where it shines / best for
- Developers and teams already on paid ChatGPT plans
- Delegating async, long-running coding tasks to cloud agents
- Automating PR creation and code review on GitHub
✕ Not the best fit for
- Users wanting a flat standalone price decoupled from ChatGPT subscriptions
- Air-gapped or fully on-device-only workflows
Features
- ✓ Cloud software-engineering agent that runs tasks asynchronously in isolated sandboxes
- ✓ Codex CLI for a local terminal-based coding agent
- ✓ IDE extension for VS Code, Cursor and other editors
- ✓ Automated GitHub pull-request creation and code review comments
- ✓ Run multiple parallel agents on different tasks
- ✓ Powered by GPT-5-Codex, optimized for agentic coding
- ✓ Available through ChatGPT plans and the OpenAI API
Pricing
| Plan | Price | Billing | Notes |
|---|---|---|---|
| Free (ChatGPT) | $0 | monthly | Very limited Codex access on the ChatGPT free plan |
| ChatGPT Plus | $20 | monthly | Codex included with usage limits scaled to the Plus tier |
| ChatGPT Pro | $200 | monthly | Highest individual Codex usage limits |
| ChatGPT Business | $25 | per user / monthly billed annually | $30/user/mo if billed monthly; Codex included with team usage |
| ChatGPT Enterprise | Custom | custom | Org controls, admin, and scaled Codex usage |
| API (pay-per-token) | Usage-based | per token | Codex/GPT-5-Codex models available via the OpenAI API |
Pricing verified from the official source. Prices change often — confirm on the vendor's site before buying.
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