GPT‑5.5 goes live for paying ChatGPT and Codex users, available for interactive use
- OpenAI said on April 23 that GPT‑5.5 is rolling out to paid ChatGPT users and to Codex, giving Plus, Pro, Business, and Enterprise customers interactive access inside its products. - OpenAI also launched GPT‑5.5 Pro for Pro, Business, and Enterprise tiers, while saying API access needs extra safety and security work and will arrive “very soon,” not on day one. - The shift puts the new model first inside OpenAI’s own apps, with developers still waiting for programmatic access through the API. (openai.com)
OpenAI has started rolling out GPT‑5.5 inside ChatGPT and Codex for paying users, with API access still delayed. (openai.com) The company said April 23 that GPT‑5.5 is going to Plus, Pro, Business, and Enterprise users in ChatGPT and Codex. A larger GPT‑5.5 Pro variant is rolling out to Pro, Business, and Enterprise users in ChatGPT. (openai.com) (help.openai.com) OpenAI said API deployments need different safeguards and that it is working with partners and customers on safety and security requirements before serving GPT‑5.5 at scale. The company said GPT‑5.5 and GPT‑5.5 Pro will come to the API “very soon.” (openai.com) (help.openai.com) The release is a product rollout first, not a full platform release on day one. In Codex documentation, OpenAI says GPT‑5.5 is available when users sign in with ChatGPT, but not yet with API-key authentication. (developers.openai.com) Codex is OpenAI’s coding agent product, and the company is pitching GPT‑5.5 as better at carrying out longer tasks with less step-by-step prompting. OpenAI’s system card says the model is built for coding, online research, document analysis, spreadsheets, and moving across tools to finish work. (openai.com) OpenAI said GPT‑5.5 matches GPT‑5.4 on per-token latency in real-world serving while improving tool use, intent understanding, and result-checking. In Codex, the company said the model outperforms GPT‑5.4 on documents, spreadsheets, and slide decks. (openai.com) (community.openai.com) The company said it tested GPT‑5.5 with internal and external red teamers and gathered feedback from nearly 200 trusted early-access partners before release. OpenAI also said it added targeted testing for advanced cybersecurity and biology capabilities. (openai.com 1) (openai.com 2) For users paying for ChatGPT or using Codex through ChatGPT, the practical change is immediate access inside OpenAI’s own interface as the rollout reaches their accounts. For developers building directly on the API, the wait is now for OpenAI to open programmatic access under the extra safeguards it says are required. (openai.com) (developers.openai.com)
