OpenAI ups Codex tier

OpenAI has started selling a new Codex-focused Pro plan at $100 a month, cutting the old jump from $20 Plus to $200 Pro into a middle tier aimed at people who spend hours inside coding agents instead of occasional chats. (help.openai.com) (developers.openai.com) The new plan promises 5 times the Codex rate limits of ChatGPT Plus, and OpenAI says that boost is temporarily 20 times for some Pro users through May 31, 2026. (developers.openai.com) Codex is OpenAI’s coding product, and it now sits across the web app, command line interface, integrated development environment extension, and iPhone app instead of being a single chat box for code snippets. (developers.openai.com) OpenAI also changed how Codex is billed on April 2, 2026, moving Plus, Pro, Business, and new Enterprise customers from rough per-message estimates to token pricing, which counts how much text goes in, how much cached context is reused, and how much code comes out. (help.openai.com) That pricing table looks more like cloud computing than consumer software: GPT-5.4 is listed at 62.50 credits per million input tokens and 375 credits per million output tokens, while the smaller GPT-5.1-Codex-mini is 6.25 credits in and 50 credits out. (help.openai.com) OpenAI says fast mode burns credits at 2 times the normal rate, and code review specifically runs on GPT-5.3-Codex, which means the bill changes depending on whether you want quick edits or long, careful passes through a codebase. (help.openai.com) The company is also being unusually direct about the target customer: its own help page says Codex averages about $100 to $200 per developer per month, which makes the new tier look less like a luxury upgrade and more like a price tag matched to actual heavy use. (help.openai.com) This also sharpens the line between solo users and companies. Business plans add larger virtual machines, workspace controls, single sign-on, and no training on business data by default, while Enterprise adds audit logs, data residency controls, and role-based access control. (developers.openai.com) OpenAI is not making this move in a vacuum. Anthropic already sells a Claude Max plan starting at $100 a month with 5 times the usage of Claude Pro, and a $200 tier with 20 times the usage, so both companies are now charging premium prices for people who treat coding assistants like daily tools instead of occasional helpers. (claude.com 1) (claude.com 2) The bigger change is that coding is becoming its own pricing lane inside artificial intelligence products. OpenAI now sells chat, video, and coding with separate credit logic, and Codex pricing is starting to look less like “one subscription for everything” and more like paying for a power tool by how hard you actually run it. (help.openai.com 1) (help.openai.com 2)