Morning Overview on MSN

OpenAI launches GPT-5.5, its first fully retrained base model

OpenAI on April 24, 2026, released GPT-5.5, calling it the company’s first base model trained entirely from scratch rather ...
MarkTechPost

OpenAI Releases GPT-5.5, a Fully Retrained Agentic Model That Scores 82.7% on Terminal-Bench 2.0 and 84.9% on GDPval

OpenAI Releases GPT-5.5, a Fully Retrained Agentic Model That Scores 82.7% on Terminal-Bench 2.0 and 84.9% on GDPval ...