Codex price sheet released

OpenAI has switched Codex to token-based pricing, replacing the older per-message system with a rate card tied to input, cached input, and output tokens. (help.openai.com) The Help Center says the change first applied on April 2, 2026 to Plus, Pro, ChatGPT Business, and new Enterprise plans. On April 23, 2026, OpenAI extended it to all existing Enterprise plans, including Edu, Health, Gov, and ChatGPT for Teachers. (help.openai.com) Under the new card, Codex usage is billed in credits per 1 million tokens, not dollars per prompt. The current table lists GPT-5.5 at 125 credits for input, 12.5 for cached input, and 750 for output. (help.openai.com) The same table lists GPT-5.4 at 62.5 credits for input and 375 for output, while GPT-5.3-Codex is priced at 43.75 credits for input and 350 for output. OpenAI says Fast mode uses credits at a higher rate on supported models. (help.openai.com) Codex is OpenAI’s cloud coding agent inside ChatGPT and related tools, built to read repositories, edit files, run tests, and propose pull requests from an isolated sandbox. OpenAI introduced the product in research preview on May 16, 2025. (openai.com) OpenAI says the new format gives customers a “direct mapping” from token usage to credit consumption, replacing average per-message estimates. The company says that makes it easier to see how long prompts, cached context, and generated code affect spend. (help.openai.com) The pricing change also lands with a broader push into team adoption. On April 2, OpenAI said ChatGPT Business and Enterprise customers can add Codex-only seats with no fixed seat fee, paying instead for token consumption. (openai.com) That same announcement said ChatGPT Business annual pricing would fall from $25 to $20 per seat, while eligible Business workspaces could receive $100 in credits for each new Codex-only team member, up to $500 per team. (openai.com) OpenAI said more than 2 million builders now use Codex every week, and Codex usage inside ChatGPT Business and Enterprise has grown sixfold since January 2026. The company also said more than 9 million paying business users rely on ChatGPT for work. (openai.com) The immediate shift is not a new public API price sheet in dollars. It is a new internal credit ledger for Codex inside ChatGPT plans, with OpenAI tying usage more closely to the same token accounting developers already see on the API side. (help.openai.com) (openai.com)