OpenAI Codex (original)
March 23, 2023
Deprecated in March 2023 as GPT-3.5 and GPT-4 absorbed code generation. Note: 'Codex' was later reused as a coding agent product name in 2025 — different thing.
Discontinued
March 23, 2023
Deprecated in March 2023 as GPT-3.5 and GPT-4 absorbed code generation. Note: 'Codex' was later reused as a coding agent product name in 2025 — different thing.