OpenAI has unveiled GPT-5.5, positioning it as a major shift toward “agentic” work that can navigate software and complete multi-step tasks with less prompting. On Terminal-Bench 2.0, it narrowly edges Anthropic’s restricted Claude Mythos Preview. But the upgrade comes with sharply higher API prices and delayed developer access, while rollout is limited to ChatGPT subscribers.
Swipe through stories, personalise your feed, and save articles for later — all on the app.
