OpenAI Codex Pricing 2026
Plans, Costs & Feature Breakdown
Pricing Plans
Plus
- ✓ Codex agent included
- ✓ GPT-5.4-Mini tasks
- ✓ Limited usage
Pro
- ✓ GPT-5.3-Codex (full)
- ✓ Higher Codex limits
- ✓ Fast mode
Business
- ✓ Per user/mo
- ✓ Team workspace
- ✓ Admin controls
Enterprise
- ✓ Unlimited usage
- ✓ SSO
- ✓ Private deployments
Technical Limits & Features
Is OpenAI Codex Worth It? — Editorial Review
OpenAI Codex is a cloud-based coding agent included in ChatGPT Plus, Pro, Business, and Enterprise plans — not a standalone subscription. It runs inside a sandboxed VM where it can read an entire codebase, write and edit files, execute tests, and submit pull requests as an autonomous software engineer. Two models are available: GPT-5.3-Codex (the default, higher quality for complex agentic tasks) and GPT-5.4-Mini (faster, lower cost, used for sub-agent roles). Credit consumption is token-based; heavy users average $100–$200/month above their base plan.
✓Pros & Strengths
- •Fully sandboxed cloud execution — no local environment setup required, works on any machine.
- •Can autonomously open PRs, run CI tests, and iterate on fixes without human intervention.
- •Included in existing ChatGPT Plus/Pro subscriptions — no separate tool to manage.
- •GPT-5.4-Mini sub-agents handle parallelizable tasks cheaply while GPT-5.3-Codex handles orchestration.
✗Limitations & Cons
- •No free plan — requires at least ChatGPT Plus ($20/mo) to access Codex.
- •Token-based credit consumption can be unpredictable; heavy agentic workflows average $100–$200/mo extra.
- •Cloud-only execution means no local IDE integration — unlike Claude Code or Cursor.
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View Pricing →Frequently Asked Questions
What is OpenAI Codex?
OpenAI's cloud-based coding agent that autonomously reads codebases, writes and edits code, runs tests, and submits pull requests inside a sandboxed VM.
Who is OpenAI Codex for?
For teams already on ChatGPT Pro or Business who want an autonomous coding agent without setting up local tooling, Codex is the lowest-friction entry point. The sandboxed cloud VM is its biggest differentiator over Claude Code and Antigravity, which require local installation. For developers who prefer IDE-native workflows, Claude Code or Cursor remain stronger choices.
Does OpenAI Codex have a free tier?
No, OpenAI Codex does not offer a free tier. It is a premium-only tool.
Is there an API available for OpenAI Codex?
Yes, OpenAI Codex provides API access for developers to integrate its features into custom applications.
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