OpenAI: For free users, we're updating the default model to GPT-5.6 Luna and expanding access by providing unlimited text chat. For Plus and Pro users, we're updating GPT-5.6 Sol to improve factual reliability and provide more accurate responses. We'

2026-08-07

OpenAI: For free users, we're updating the default model to GPT-5.6 Luna and expanding access by providing unlimited text chat. For Plus and Pro users, we're updating GPT-5.6 Sol to improve factual reliability and provide more accurate responses. We've updated GPT-5.6 Sol in ChatGPT to offer more direct replies, a more compact format, and less extraneous detail.