OpenAI: GPT-5 Pro vs OpenAI: GPT-5.4 Pro

Side-by-side model comparison based on OpenRouter API data.

SpecOpenAI: GPT-5 ProOpenAI: GPT-5.4 Pro
ProviderOpenAIOpenAI
Context Length400K1.1M
Max Output128K128K
Input Price/1M$15$30
Output Price/1M$120$180
Cache Read/1MFreeFree
Cache Write/1MFreeFree
Input ModalitiesImage + Text + FileText + Image + File
Output ModalitiesTextText
TokenizerGPTGPT
ModeratedYesYes
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