OpenAI has launched GPT-5.5, its first fully retrained base model since GPT-4.5, touting major gains in agentic coding, multimodal processing, and long-context reasoning. Benchmarks show it leading on ...
OpenAI’s GPT-5.5, launched as its most capable model yet, is aimed at complex, agentic tasks and professional workflows. However, in head-to-head testing across seven advanced challenges, Anthropic’s ...