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GPT-5.4: price, context window and licence

Where these figures come from

Taken from the OpenRouter model registry, which lists what providers charge per token, and converted to a per-million rate. Checked 30 Oct 2026. Where OpenRouter publishes no cache-read rate, the cell above is blank rather than inferred.

More on GPT-5.4

• OpenAI gave GPT-4o API users three months' notice — its rule says six
• Google's fix for agents that memorize their tests
• SWE-bench agents lose up to 14 points when a repo's surface changes
• Deep Dive — The US built an AI gate with no law and no staff
• Air-gapped labs test a tamer model than the one that ships

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