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Prices, specs and price history side by side. Data as of 2026-08-01

GPT-5 Pro×GPT-5.1×Clear

Spec	GPT-5 ProOpenAI	GPT-5.1OpenAI
Provider	OpenAI	OpenAI
Context window	400K	400K
Max output	128K	128K
Modalities	image, text, file → text	image, text, file → text
Open source	No	No
License	-	-
Released	-	-
Status	active	active
Input$ / 1M	15	1.25cheapest
Output$ / 1M	120	10cheapest
Cached$ / 1M	-	0.125
Channel	openrouter	openrouter

Price history

Overlaid price history. Solid = verified by us, dashed = estimated (archive).

GPT-5 ProGPT-5.1verified by usestimated (archive)

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