Codex for Open Source

Six months of ChatGPT Pro with Codex for maintainers, plus API credits and Codex Security at the team’s discretion.

Who it is for

  • You are a core maintainer or run a widely used public project.
  • API credits are for projects that use Codex in PR review, automation, releases or other core work.
  • Codex Security is for maintainers with write access, case by case.

Check my eligibility

How to get it

  1. Open the program page and fill in the application.
  2. If the project misses the criteria but matters to the ecosystem, explain why.
  3. Wait for the email decision.
  4. For API credits, describe how the project uses Codex.

Limitations

The program page does not state the API credit amount. The subscription and API credits are separate balances.

Application deadline
Not stated by the source
Activation window
Check when granted
Spending period
6 months for ChatGPT Pro
Later billing
Terms are in the Codex for Open Source Program Terms.
Combining with other grants
You can work in any tools, not only Codex.

Source and changes

Terms copied from the collection of 1 October 2026. Check the current version before applying.

The official page was checked automatically 18 hours ago, no changes found.

Other ways to get credits

Codex for StudentsOpenAI · Subscription
$100Credits for Codex

For university students in the US and Canada

How hard to getLowJust verify your student status in ChatGPT
  • Students
  • US and Canada
  • Status verification in ChatGPT
OpenAI Researcher Access ProgramOpenAI · Direct API
Up to $1,000API credits for 12 months

For researchers of AI safety and impact

How hard to getHighAn application with a project, decisions once a quarter
  • Researchers
  • Apply on the OpenAI program site
AWS ActivateAWS · Cloud platform
Amount not publishedCloud credits

For startups that fit an Activate package

How hard to getMediumRegular application; some packages need an Activate Provider partner
  • Startups, Developers
  • Apply on the AWS site
Claude for Open SourceAnthropic · Subscription
Max 20xClaude Max 20x subscription free for 6 months

For open source maintainers and active contributors

How hard to getMediumAn application with a project that meets one of the criteria
  • Open source, Developers
  • Apply on the Claude site