OpenAI rollout and pricing notes

OpenAI has widened Custom Actions in ChatGPT on the web and, at the same time, published a new Codex pricing sheet that ties usage more directly to credits and tokens. (help.openai.com 1) (help.openai.com 2) The release notes say Custom Actions now work with GPT‑4o and GPT‑4.1 on the web for Plus, Pro, and Team users, with Enterprise and Edu rollout still listed as coming soon. The same release-notes page was updated within the last day. (help.openai.com) Custom Actions let a ChatGPT agent call outside tools and services inside a chat, like a built-in connector that can take steps for a user. OpenAI has been expanding those tool hooks across apps, GPTs, and workspace products in recent months. (help.openai.com 1) (help.openai.com 2) The pricing update lands on the Codex side. OpenAI’s Help Center says that, as of April 2, 2026, Codex pricing moved to token-based accounting for new and existing Plus, Pro, and Business customers, plus new Enterprise customers, replacing older per-message estimates. (help.openai.com) Under that rate card, Codex usage is priced by model and token type: GPT‑5.4 is listed at 62.50 credits per 1 million input tokens and 375 credits per 1 million output tokens, while GPT‑5.4‑Mini is listed at 18.75 and 113 credits. The same page says Fast mode uses 2 times as many credits. (help.openai.com) OpenAI’s developer pricing page now frames Codex as included across ChatGPT Free, Go, Plus, Pro, Business, Edu, and Enterprise plans, with paid tiers mainly changing rate limits and access to newer models. Plus is listed at $20 a month, while Pro starts at $100 a month and is described as offering 10 times or 20 times Plus limits depending on the option. (developers.openai.com) The same pricing page says Pro users can get GPT‑5.3‑Codex‑Spark in research preview, and that the current higher Pro usage boost runs through May 31, 2026. OpenAI also says larger or longer-running coding tasks consume more allowance because they require more context and more tokens. (developers.openai.com) For teams, OpenAI added a new Codex-only seat to ChatGPT Business on April 2, 2026. The Business release notes say those seats have no fixed monthly cost, are billed on usage, and can earn up to $100 in credits per newly added seat, capped at $500 per workspace. (help.openai.com) OpenAI also said it cut subscription-based ChatGPT Business seats by $5 a month at the same time it introduced the usage-based Codex seat. The Business notes say ChatGPT seat pricing stayed separate from the Codex rate-card changes. (help.openai.com) Taken together, the changes push two parts of OpenAI’s product line in the same direction: more agent-style actions inside ChatGPT, and more metered billing for coding work inside Codex. Enterprise and Edu customers are next in line on both fronts, with Custom Actions rollout still pending and some Codex customers still on a legacy rate card until migration. (help.openai.com 1) (help.openai.com 2)