Agentic Research
AI CodingIntermediate

Codex

OpenAIWeb · CLI · IDE 外掛

OpenAI's coding agent, able to run tasks in parallel in the cloud and return diffs

Good for

  • Offloading parallelisable tasks to the cloud
  • Reviewable output in diff form
  • Teams already in the OpenAI ecosystem

Not for

  • Fully offline or self-hosted model requirements
  • Anyone unwilling to hand a codebase to an external cloud

We deliberately put “not for” on the same screen — a review that only lists strengths carries no information.

Pricing

SubscriptionNo free tier

Included with paid ChatGPT plans, plus usage-based API billing; see the official site.

Amounts not yet manually verified. The above is a qualitative description of the billing model — defer to the official site for numbers.

Junze editorial rating

Capability
44/5
Ease of use
44/5
Cost value
33/5
Privacy control
22/5

Editorial opinion, not an aggregated user rating. Data last verified: 2026-09-29.

Our articles about Codex

We have not published a hands-on review of Codex yet. This entry is a structured summary; the in-depth review will appear here.

Tools it is often compared with

Alternatives

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Billed via Claude paid plans or API usage. This site also documents driving it from DeepSeek / ModelStudio-compatible backends to cut cost.

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9 site articles2 scenariosOfficial siteView tool

Cursor

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Good for
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GitHub Copilot

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SubscriptionFree tierSee official pricing

Free tier plus several paid plans and an enterprise tier. See the official page for current numbers.

Good for
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Devin

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Positioned as an autonomous software engineer: hand it a task and it plans and executes

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SubscriptionNo free tierSee official pricing

Subscription plus usage-based billing across tiers; see the official site.

Good for
  • Handing off a well-specified, self-contained task
  • Asynchronous execution that does not occupy your time
  • Highly repetitive engineering chores

Learning tracks that include this tool

This page is an editorial summary, not an official page. Trademarks and product names belong to their respective owners. If anything here is wrong or out of date, tell us and we will correct it. Last verified: 2026-09-29.