Not true. Try to increase the context window and you will be greeted with an error when you reach the real limit enforced server-side.

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searealist 17 hours ago | parent | next [-]

The models themselves support up to 1M. You are just charged more for all context over 400k. The 272k limit is just a client limitation to ensure you can never go over 400k since the maximum output size of the model is 128k.

	▲	noname120 4 minutes ago \| parent [-]
		Not true. This is the case for the API, not for subscriptions: they are hard capped at 400k.

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quotemstr a day ago | parent | prev [-]

Perhaps not this for this parameter, but for others? Client side.