OpenAI is reviewing Codex for Open Source applications on a rolling basis, with the next batch currently being queued up. Applicants should expect emails on Monday.
Several projects and maintainers have already joined the Codex for OSS community, with more on the way as reviews continue.
One early participant noted that improving fraud detection took considerable iteration, crediting GPT-4.5 Pro with helping push it across the line.

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OpenAI is processing applications for its Codex for Open Source program on a rolling basis, with the next batch of applicants expected to receive emails on Monday. Several open source projects and maintainers have already joined the community. An early participant shared that GPT-4.5 Pro helped them improve fraud detection after considerable iteration.

OpenAI Codex for Open Source: next batch of applicants being reviewed