Are the Anonymous Horizon Models GPT-5 Early Release Models?
by Brian Wang from NextBigFuture.com on (#6Z5H4)
There is widespread speculation in the AI community that they represent a stealth preview, variant, or test version of OpenAI's upcoming GPT-5 model. They have exceptional performance, timing, and shared characteristics with OpenAI's tech stack. The Horizon models (primarily Horizon Alpha and Horizon Beta) surfaced anonymously around July 30-31, 2025, on platforms like LM Arena ...