OpenAI: o3 Pro vs OpenAI: GPT-5.4 Mini

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

SpecOpenAI: o3 ProOpenAI: GPT-5.4 Mini
ProviderOpenAIOpenAI
Context Length200K400K
Max Output100K128K
Input Price/1M$20$0.75
Output Price/1M$80$4.50
Cache Read/1MFree$0.07
Cache Write/1MFreeFree
Input ModalitiesText + File + ImageFile + Image + Text
Output ModalitiesTextText
TokenizerGPTGPT
ModeratedYesYes
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