ChatGPT"s GPT-5-reasoning-alpha model spotted ahead of launch
GPT-5 might be just a few days or weeks away, as we've spotted references to a new model called gpt-5-reasoning-alpha-2025-07-13. As spotted on X, OpenAI is testing a model called "gpt-5-reasoning-alpha-2025-07-13." This model was finalised on the 13th of July, and it appears to be the final round of testing. "Models: openai/gpt-5-reasoning-alpha-2025-07-13: reasoning_effort: high," one of the code references read. Alexander Wei, a researcher at OpenAI, recently confirmed that GPT-5 is on it