Expired60% confidenceFactExact time
Codex was first released in 2021, fine-tuned using public code from 54 million GitHub repositories, covering more than ten programming languages including Python, JavaScript, and Go
2
Sources
60%
Confidence
Medium-term (~90 days)
Relevance
7/2/2026
First Seen
Valid until: 9/30/2026(expired)
Sources
Codex++ with Free API: A Complete Guide to Using Codex at Zero Cost
bilibili开源项目盘点6/5/2026
Related Claims
UnverifiedThe Codex series underwent deep fine-tuning on large-scale open-source code corpora (publicly available GitHub code).72% similarVerifiedCodex's training data covers billions of lines of publicly available code on GitHub.71% similarVerifiedGitHub Copilot was released in 2021 and is primarily based on the code completion capabilities of large language models.71% similar
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