Rumors are circulating that OpenAI is working on an upgraded version of its flagship language model, tentatively referred to as GPT-5.5. According to leaks and speculation across tech forums, this update could bring significant improvements in reasoning, context handling, and efficiency over the current GPT-4 series. The news has sparked discussions about the growing competition between AI labs, with some commentators suggesting that Claude Opus 4.7 from Anthropic may need to accelerate its development to keep pace. However, official confirmation from OpenAI remains absent, and the reported details are based on unofficial sources. Industry analysts caution that such rumors should be taken with a grain of salt until verified.
OpenAI Rumored to Be Developing GPT-5.5, Raising Stakes for Competitors
AI
April 28, 2026 · 11:15 PM