OpenAI drops GPT-5.5 with major agentic coding leaps
OpenAI just launched GPT-5.5 and GPT-5.5 Pro, heavily optimized for autonomous coding, knowledge work, and complex computer use. The model matches GPT-5.4's per-token latency while requiring fewer tokens and setting a new high score of 82.7% on Terminal-Bench 2.0. Why it matters: AI assistance is shifting from step-by-step chatting to letting agents independently plan, test, and finish messy engineering projects.