OpenAI: GPT-5 Nano vs OpenAI: GPT-5.4 Nano

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

SpecOpenAI: GPT-5 NanoOpenAI: GPT-5.4 Nano
ProviderOpenAIOpenAI
Context Length400K400K
Max Output128K128K
Input Price/1M$0.05$0.20
Output Price/1M$0.40$1.25
Cache Read/1M<$0.01$0.02
Cache Write/1MFreeFree
Input ModalitiesText + Image + FileFile + Image + Text
Output ModalitiesTextText
TokenizerGPTGPT
ModeratedYesYes
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