OpenAI rolls out GPT‑5.5

- OpenAI rolled out GPT-5.5 across paid ChatGPT tiers and introduced a higher-performance Pro variant, with API access planned, pitching improvements in reasoning, coding, efficiency and safeguards for coding, research and document work. - The April surge included GPT-5.5, Claude Opus 4.7 and China’s DeepSeek V4, with vendors racing to improve latency, reasoning and API support for coding workloads and enterprise adoption. - Vendors are emphasising coding and enterprise use—OpenAI and Nvidia are deepening enterprise pushes to cut inference cost and speed coding workflows. (storyboard18.com) (euronews.com)