OpenAI: o4 Mini Deep Research vs OpenAI: GPT-5.4

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

SpecOpenAI: o4 Mini Deep ResearchOpenAI: GPT-5.4
ProviderOpenAIOpenAI
Context Length200K1.1M
Max Output100K128K
Input Price/1M$2.00$2.50
Output Price/1M$8.00$15
Cache Read/1M$0.50$0.25
Cache Write/1MFreeFree
Input ModalitiesFile + Image + TextText + Image + File
Output ModalitiesTextText
TokenizerGPTGPT
ModeratedYesYes