Gpt-5-5

OpenAI launched the ChatGPT Super App on April 6, 2026, positioning it not as a chatbot upgrade but as an AI operating system. With 800 million weekly active users as of Q1 2026 and over 7 million enterprise seats, the platform merges ChatGPT 5.5, the Codex software engineering agent, and the Atlas browser automation agent into a single unified workspace. If you have been switching between a chat window, a coding IDE, and a browser automation tool, this is the product that is supposed to eliminate that context-switching entirely. ...

GPT-5.5 Pro launched on April 24, 2026 as OpenAI’s highest-accuracy API tier, posting 93.6% on GPQA Diamond and 90.1% on BrowseComp. At $30 per million input tokens and $180 per million output tokens, it carries a 6x price premium over standard GPT-5.5 — a premium that is only defensible when accuracy failures carry measurable downstream cost. This guide covers the full pricing structure, reasoning.effort configuration, benchmark breakdown, competitive positioning against Claude Opus 4.7, enterprise compliance features, and cost optimization strategies to help engineering and architecture teams make a clear-eyed deployment decision. ...