OpenAI Codex

OpenAI coding agent across ChatGPT, the editor, the terminal and the cloud.

Free planTestedCoding

Quick answer

Codex is a coding agent included in ChatGPT plans, available as Codex cloud, an IDE extension and the Codex CLI. It can run parallel agents, keep tasks running in cloud environments and review pull requests. The CLI and IDE extension also accept sign-in with an OpenAI API key for usage-based access.

  • Free plan: yes
  • Cheapest paid plan: Business at IDR 337,000 (per month), checked October 25, 2026
  • Bahasa Indonesia: not verified on the official site
  • Our tests: 1 practical test runs
Newly Stack is not the official site of OpenAI Codex and has no partnership with OpenAI. Brand names are used for reference only. Facts below link to the official pages we read.

OpenAI Codex plans and prices

Prices as listed on the official pricing page. Taxes and local currency can change the final amount.

Plan, Price, Billing, Checked

PlanPriceBillingChecked
PlusIDR 349,000per monthOctober 25, 2026
ProIDR 1,889,000per monthOctober 25, 2026
BusinessIDR 337,000per monthOctober 25, 2026

Official sourceChecked October 25, 2026

See all OpenAI Codex prices

Free plan

OpenAI Codex has a free plan.

Limits stated by the vendor
ChatGPT Free plan: "Limited Codex access" (chatgpt.com/pricing)

Official sourceChecked October 25, 2026

Bahasa Indonesia support

Interface in Bahasa Indonesia
Not verified
Understands and writes Bahasa Indonesia
Not verified

Indonesian support is not stated on the official pages checked; to be measured in the NS-ID benchmark.

Official sourceChecked October 25, 2026

Our test results

Scores and examples come only from tests we ran ourselves. Payment never changes a score.

Practical tests

  • Best AI for coding5 standard prompts in English, 5 passed our checklist, tested October 25, 2026

Key facts

API key sign-in
Codex CLI and IDE extension support sign-in with ChatGPT or with an API key; Codex cloud requires ChatGPT sign-in

Official sourceChecked October 25, 2026

Currency shown
Prices were displayed in IDR to a visitor from Indonesia on 2026-10-25; other regions may see other currencies

Official sourceChecked October 25, 2026

Promos and deals

No active promo from OpenAI Codex right now. Expired promos are hidden automatically.

All promos and deals

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Questions about OpenAI Codex

Is OpenAI Codex free?

OpenAI Codex has a free plan. ChatGPT Free plan: "Limited Codex access" (chatgpt.com/pricing)

How much does OpenAI Codex cost?

The cheapest paid plan we found is Business at IDR 337,000 (per month), according to the official pricing page checked on October 25, 2026.

Does OpenAI Codex support Bahasa Indonesia?

Not confirmed. Indonesian support is not stated on the official pages checked; to be measured in the NS-ID benchmark.

Is this the official OpenAI Codex website?

No. Newly Stack is an independent directory. Use the official link on this page to sign up or buy.