OpenAI's latest iteration, GPT-5.5, delivers a major leap in AI capabilities while maintaining rapid response times. The model achieves breakthrough performance on coding benchmarks and introduces enhanced agentic abilities, enabling it to plan, use tools, and complete complex tasks autonomously without sacrificing speed.
OpenAI's GPT-5.5 Doubles Performance at Same Speed
AI
April 28, 2026 · 1:57 PM