GPT-5.5 and OpenAI Codex Superapp Launch: Computer-Use, Document Automation, and Overnight Runs

Summary

OpenAI launched GPT-5.5 on April 24, 2026, a model that emphasizes cost-efficiency rather than raw capability alone, delivering "better long-horizon execution, stronger computer-use behavior, and materially improved token efficiency." API pricing is $5/$30 per million input/output tokens with a Pro tier at $30/$180; the model features a 1M token context window and reportedly delivers comparable intelligence to Claude Opus 4.7 at approximately one-quarter of the cost (~$1,200 vs $4,800 per millio