OpenAI raises GPT-6.1 Sol default context to 500k in Codex and Work

OpenAI has raised the default context length for GPT-6.1 Sol to 500k tokens in Codex and Work, up from 272k, according to a post by OpenAI developer Tibo (@thsottiaux) on X. The company says the change reduces context compactions on tasks that need to retain large amounts of context over time.

Users can override the default, with a maximum context length of 1M tokens for GPT-6.1 Sol. A later report by Testing Catalog (@testingcatalog) on X names the product as "ChatGPT Work" rather than "Work" and says OpenAI plans to raise the default further. The Testing Catalog report does not give a figure or date for that increase, and the OpenAI post as quoted in the reports does not mention it.