GPT-5.5 Is Out — What Makes It Different?

OpenAI has launched GPT-5.5, positioning it as a model optimized for real work rather than just chat.

The company says GPT-5.5 understands goals faster, uses tools better, and performs stronger on coding, research, analysis, and computer-operation tasks.

Benchmarks cited include Terminal-Bench 2.0, SWE-Bench Pro, GDPval, OSWorld-Verified, and Tau2-bench Telecom.

The release underscores OpenAI’s push toward AI systems that can carry out multi-step workflows across software and business tasks.