Two new models are live for all users.
ChatGPT 5.3, powered by gpt-5.3-chat-latest, is OpenAI’s general-purpose model from the GPT-5 family. It gives more direct answers, with fewer unnecessary refusals and less preamble.
Gemini 3.1 Flash is Google’s workhorse model for high-volume use. It improves on 2.5 Flash Lite in overall quality and lands close to full 2.5 Flash, with gains in audio input, retrieval ranking, translation, data extraction, and code completion.