CreditStack

Openai

Codex Open Source Fund

Up to $25K in credits
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Up to $25K in OpenAI API credits for open-source projects using Codex or GPT models.

OpenAI's $1M fund hands out $25K API credit grants to open-source projects already building with Codex CLI or their models. You get the credits on a rolling basis, plus direct technical support from OpenAI's team. The catch: your project needs to be genuinely open-source and actively maintained—this isn't for closed commercial tools or abandoned repos. You'll also get some ecosystem visibility, though that's secondary to the actual credits. The application process is straightforward, but approval timelines vary depending on how clearly your project fits their mandate.

Program details

Tier 1

API Credit Grants

Grants awarded in increments of $25,000 in OpenAI API credits on a rolling basis.

$25K

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Application difficulty: Easy Benefits: Strong

Benefits

  • $25,000 OpenAI API credits per grant
  • Technical guidance from OpenAI team
  • Ecosystem support for Codex CLI adoption

Eligibility

  • Open-source projects integrating Codex CLI or OpenAI models
  • Projects aligned with OpenAI’s mission of safe and beneficial AI

How to apply

  1. 1

    Submit Application

    Fill out and submit the application form to apply for the fund.

    Apply →
Apply for API Credit Grants →

Pros

  • ✓ $25K in API credits with no equity or repayment required
  • ✓ Direct technical guidance from OpenAI team members
  • ✓ Rolling applications—no hard deadline to miss

Cons

  • ✗ Project must be genuinely open-source; closed or commercial-only projects ineligible
  • ✗ Credits expire after 12 months if unused
  • ✗ Approval timeline unpredictable; can take 4–8 weeks

Frequently asked questions

What is Codex CLI?
A lightweight, open-source tool that runs AI-powered code suggestions directly in your terminal. It processes code locally, enhancing security and speed.
Can non-developers apply?
The fund prioritizes technical projects, but interdisciplinary teams are encouraged if they integrate Codex CLI effectively.
Are there usage restrictions?
API credits must be used for projects compliant with OpenAI’s usage policies.
How are applications reviewed?
Proposals are reviewed on a rolling basis with no fixed deadline. Selected projects receive grants and technical guidance from the OpenAI team.

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Tags

#open-source #openai #api #ai
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