OpenAI released GPT-5.5 on Thursday, April 23, 2026, calling it the company’s “smartest and most intuitive to use model” yet and positioning it as another step toward building an AI “superapp.”
The new model delivers enhanced capabilities across multiple domains, including enterprise applications like agentic coding and knowledge work, as well as mathematics and scientific research. According to OpenAI, GPT-5.5 outperforms both its predecessors and competing models from Google and Anthropic, including Gemini 3.1 Pro and Claude Opus 4.5, across various benchmarks.
OpenAI co-founder and president Greg Brockman described GPT-5.5 as “a real step forward towards the kind of computing that we expect in the future,” noting it’s “a faster, sharper thinker for fewer tokens” compared to version 5.4. He emphasized the model advances the company’s vision of creating a “superapp” — a multi-purpose platform combining ChatGPT, Codex, and an AI browser into one unified service for enterprise customers.
The rapid release pace continues for OpenAI, which launched its previous model just last month, with earlier releases in December and November. Chief scientist Jakub Pachocki suggested this momentum will persist, stating, “I think the last two years have been surprisingly slow.”
Mark Chen, OpenAI’s chief research officer, highlighted the model’s improved ability to navigate computer work and “shows meaningful gains on scientific and technical research workflows,” including potential applications in drug discovery.
GPT-5.5 became widely available Thursday to Plus, Pro, Business, and Enterprise users in ChatGPT, while the Pro version rolled out to Pro, Business, and Enterprise tiers. The release intensifies competition in the AI space, particularly with rival Anthropic, as both companies race to dominate enterprise AI applications and cybersecurity tools.
Source: TechCrunch