GPT-5.5 on Brian Swigerhttps://www.mightybs.com/tags/gpt-5.5/Recent content in GPT-5.5 on Brian SwigerHugo -- gohugo.ioen© 2026 Brian SwigerThu, 23 Apr 2026 18:41:00 -0400GPT-5.5 Is Here: OpenAI's Smartest Model Redefines Agentic AIhttps://www.mightybs.com/posts/2026-04-23-gpt-5-5-is-here-openais-smartest-model-redefines-agentic-ai/Thu, 23 Apr 2026 18:41:00 -0400https://www.mightybs.com/posts/2026-04-23-gpt-5-5-is-here-openais-smartest-model-redefines-agentic-ai/OpenAI just dropped GPT-5.5, and it’s a big deal. This model scores 82.7% on Terminal-Bench 2.0 for agentic coding, excels at knowledge work and scientific research, and matches GPT-5.4 latency while being significantly more token-efficient. Here’s what you need to know and why it matters for developers and enterprises.