Codex
OpenAI's cloud-based coding agent
Best for parallel tasks
Developers who want to delegate multiple coding tasks to parallel cloud agents
Founded 2025 · USA
Pricing
| Plan | Price | Credits |
|---|---|---|
| Plus (via ChatGPT) | $20/mo | — |
| Pro (via ChatGPT) | $200/mo | — |
| Enterprise (via ChatGPT) | $0/mo | — |
Hidden costs to be aware of:
- Requires ChatGPT Plus/Pro/Enterprise subscription
- Usage limits vary by plan tier
Pricing last verified: 2026-03-17
Strengths & Limitations
Strengths
- +Runs multiple agents in parallel — tackle several tasks simultaneously
- +Cloud sandboxed environments preloaded with your repo
- +Powered by dedicated Codex models (GPT-5.3/5.4-Codex)
- +Backed by OpenAI — rapid iteration and strong model improvements
Limitations
- -Requires a ChatGPT subscription — no standalone plan
- -Cloud-only — no local execution option
- -Less transparent mid-task than copilot-style tools
- -Newer product — still maturing compared to established AI IDEs
How It Compares
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Direct link — no affiliate relationship
Last updated: 2026-03-17