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Prices, specs and price history side by side. Data as of 2026-08-02

o3×GPT-5.1×Clear

Spec	o3OpenAI	GPT-5.1OpenAI
Provider	OpenAI	OpenAI
Context window	200K	400K
Max output	100K	128K
Modalities	image, text, file → text	image, text, file → text
Open source	No	No
License	-	-
Released	-	-
Status	active	active
Input$ / 1M	2	1.25cheapest
Output$ / 1M	8cheapest	10
Cached$ / 1M	0.5	0.125cheapest
Channel	openrouter	openrouter

Price history

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

o3GPT-5.1verified by usestimated (archive)

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