OpenAI Codex¶ Codex is the model that powers GitHub Copilot and other AI coding tools. Description¶ It is a descendant of GPT-3 that has been fine-tuned on code from GitHub. Links¶ OpenAI Codex Page Alternatives¶ Llama 3 (Fine-tuned for code) StarCoder Backlog¶ Comparison with GPT-4o's coding capabilities.