Coding agent. Its own site says: “ChatGPT logo Codex The same powerful coding agent—now in ChatGPT.”
Paid from: Via ChatGPT Go $8/mo; API usage at API ratesFree tier: yes (in ChatGPT Free)Last verified 2026-10-13Site check: bot-blocked (403)
Source: vendor pricing page. Prices change; confirm on the vendor site.
Where OpenAI Codex ranks
Ranked in 3 TaskRanking use cases.