Choose the right AI modelbefore cost or API changes bite.

OpenAI introduced GPT-5.5 on April 23, 2026 as its smartest model for agentic coding, computer use, knowledge work, and research. GPT-5.5 is rolling out to Plus, Pro, Business, and Enterprise users in ChatGPT and Codex, while GPT-5.5 Pro is rolling out to Pro, Business, and Enterprise users in ChatGPT. OpenAI says both GPT-5.5 and GPT-5.5 Pro will come to the API very soon, with pricing listed at $5 input / $0.50 cached input / $30 output per 1M tokens for GPT-5.5 and $30 input / $180 output per 1M tokens for GPT-5.5 Pro.

OpenAI launched GPT-5.4 on March 5, 2026, with rollout to paid ChatGPT users, all Codex users, and immediate API availability. OpenAI also exposed GPT-5.4 Pro in the API, pricing GPT-5.4 at $2.50 input / $0.25 cached input / $15 output per 1M tokens and GPT-5.4 Pro at $30 input / $180 output per 1M tokens.

The Sora team said it is saying goodbye to the Sora app and will share more details soon on timelines for the app and API, plus how users can preserve their work. This is an official sunset announcement, but OpenAI has not yet published the concrete shutdown schedule or migration steps.