OpenAI posts Codex pricing for Plus, Pro, Business and Enterprise tiers

OpenAI has posted a Codex rate card that sets out how coding-agent usage is billed across ChatGPT Plus, Pro, Business, Enterprise, Education, Health and Government plans. The help-center page says the company switched Codex pricing on April 2, 2026, for new and existing Plus, Pro and Business customers and new Enterprise customers, then extended the change on April 23, 2026, to existing Enterprise accounts, including Edu, Health, Gov and ChatGPT for Teachers. The new format prices Codex by token consumption rather than by message. OpenAI said usage is calculated as credits per 1 million input tokens, cached input tokens and output tokens, replacing earlier average per-message estimates. On May 14, 2026, OpenAI also said Codex was coming to the ChatGPT mobile app in preview. The company said the mobile version lets users monitor, steer and approve coding tasks running on laptops, devboxes or other remote environments from iOS and Android devices. (help.openai.com) ### Which prices did OpenAI publish? OpenAI’s help-center rate card lists GPT-5.5 at 125 credits per 1 million input tokens, 12.50 credits per 1 million cached input tokens and 750 credits per 1 million output tokens. (help.openai.com) The same table lists GPT-5.4 at 62.50, 6.250 and 375 credits, GPT-5.4-Mini at 18.75, 1.875 and 113 credits, and GPT-5.3-Codex at 43.75, 4.375 and 350 credits. (openai.com) The rate card also includes GPT-5.2 at the same 43.75, 4.375 and 350-credit levels, and image-generation entries for GPT-Image-2.0. OpenAI said GPT-5.3-Codex-Spark may appear as a research preview and that final credit rates for that model are not yet set. ### When did the pricing model change? April 2, 2026, is the date OpenAI says it moved Codex pricing to token-based billing for new and existing Plus, Pro and Business users, along with new ChatGPT Enterprise customers. (help.openai.com) April 23, 2026, is the date the company says the same change was applied to all existing Enterprise plans, including Education, Health, Government and ChatGPT for Teachers. The help article says a small subset of Enterprise customers should remain on a legacy rate card and directs those customers to contact OpenAI sales. OpenAI also says users can monitor remaining credit, buy more credit and manage auto-reload from the Usage panel in Codex settings. ### Who can use Codex under ChatGPT plans? (help.openai.com) OpenAI’s plan guide says Codex is included with ChatGPT Plus, Pro, Business and Enterprise/Edu plans. The same page says Codex is also included for a limited time with ChatGPT Free and Go, while “all other plans enjoy 2x rate limits.” The plan guide also says business users can find Codex credit-plan details on ChatGPT pricing pages. (help.openai.com) For enterprise deployments, OpenAI says admins and owners can control access through workspace app controls and role-based access control. (help.openai.com) ### What does the mobile app actually let users do? May 14, 2026, is the date OpenAI used to announce Codex in the ChatGPT mobile app as a preview feature. The company said users can review outputs, approve commands, change models, start new tasks and follow screenshots, terminal output, diffs, test results and approvals from their phones. (help.openai.com) OpenAI said the mobile app connects to machines where Codex is already running, including laptops, dedicated Mac minis and managed remote environments. The company said files, credentials, permissions and local setup stay on the machine where Codex is operating, while updates are relayed back to the phone in real time. ### How is OpenAI describing Codex more broadly? (openai.com) OpenAI’s Codex product page describes the service as a coding agent powered by ChatGPT that can handle tasks including features, refactors, migrations and code review. The page says the Codex app supports multi-agent workflows with worktrees and cloud environments, and advertises automations for issue triage, alert monitoring and CI/CD work. (openai.com) The help-center rate card says average Codex spending runs about $100 to $200 per developer per month, though OpenAI says the figure varies widely by model choice, number of running instances, automations and use of fast mode. OpenAI’s current help pages point users to the Codex rate card for credit pricing and to the ChatGPT mobile app preview for phone access. (openai.com) The company said GPT-5.3-Codex-Spark remains in research preview and that some Enterprise customers still use a legacy rate card, with sales handling those accounts. (help.openai.com)