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

What happened

OpenAI's Thibault Sottiaux said the default context length for GPT-6.1 Sol when used through Codex and Work has increased to 500k, up from 272k, an increase of about 80%. He said this reduces how often compaction occurs and helps tasks that need to retain a lot of context over time, and that users can override it, with a maximum context length of 1M.

The story so far

OpenAI increased the default context length for GPT-6.1 Sol to 500k when the model is used through Codex and Work, up from 272k, an increase of about 80%. OpenAI's Thibault Sottiaux said the change reduces how often compaction occurs and helps tasks that need to retain a lot of context over time. Users can still override the default to go higher or lower, Sottiaux said, with a maximum context length of 1M for GPT-6.1 Sol.

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