Codex Context Window Shrinks to 272k
luckokkkk · reddit · 2026-07-20
Reddit users have noticed that Codex's model context length has been reduced from 372k to 272k.
The post points to a linked Codex PR, confirming that the context window was cut down by 100k.
Related event: OpenAI Quietly Cuts Codex Context Window to 272k Tokens(5 posts)→
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