OpenAI: GPT-4o vs OpenAI: GPT-5.4 Pro

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

SpecOpenAI: GPT-4oOpenAI: GPT-5.4 Pro
ProviderOpenAIOpenAI
Context Length128K1.1M
Max Output16K128K
Input Price/1M$2.50$30
Output Price/1M$10$180
Cache Read/1M$1.25Free
Cache Write/1MFreeFree
Input ModalitiesText + Image + FileText + Image + File
Output ModalitiesTextText
TokenizerGPTGPT
ModeratedYesYes
OpenAI: GPT-4o vs OpenAI: GPT-5.4 Pro -- AI Model Comparison | AIToolRank