Active
Codex Open Source Fund
open source openai api ai
The Codex Open Source Fund is a $1 million initiative by OpenAI to support open-source projects that integrate Codex CLI or other OpenAI models. Grants are awarded in increments of $25,000 in OpenAI API credits, distributed on a rolling basis. Participants also gain technical guidance from the OpenAI team and ecosystem support to accelerate adoption of Codex CLI across diverse programming languages, including Python, JavaScript, and Shell.
Starting from
$25,000
→
Up to
$25,000
Program Tiers
API Credit Grants
Grants awarded in increments of $25,000 in OpenAI API credits on a rolling basis.
Credit Value
$25,000
Duration
Benefits
Orbital
Enhanced benefits for growing projects
Level 2 
$25,000 OpenAI API credits per grant
Technical guidance from OpenAI team
Ecosystem support for Codex CLI adoption
Eligibility
Lunar Gravity
Simple application process, usually just a quick form
Level 1 
Open-source projects integrating Codex CLI or OpenAI models
Projects aligned with OpenAI’s mission of safe and beneficial AI
Apply Now
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