OpenAI prepares GPT-5.6 models for the upcoming releaseOpenAI is set to introduce GPT-5.6 model next week, including GPT-5.6-Pro variant, and potentially an updated voice mode.TestingCatalog·1d ago·3 min readhttps://t.co/MspMlB3SMRpic.twitter.com/XjIZ5cA6lRJune 18, 2026https://t.co/oOTD6WNVG7