18:00
2026-10-10
llmstatus.ai
large-language-models
OpenAI o1-pro deprecated, retires 2026-10-23 β GPT-5.5 Pro
OpenAI has deprecated o1-pro, the o-series model released as o1-pro-2025-03-19, with retirement set for 2026-10-23 and migration directed to GPT-5.5 Pro, according to the provider's deprecation announβ¦