OpenAI: GPT-5.1-Codex-Max vs OpenAI: GPT-5.4 Nano

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

SpecOpenAI: GPT-5.1-Codex-MaxOpenAI: GPT-5.4 Nano
ProviderOpenAIOpenAI
Context Length400K400K
Max Output128K128K
Input Price/1M$1.25$0.20
Output Price/1M$10$1.25
Cache Read/1M$0.13$0.02
Cache Write/1MFreeFree
Input ModalitiesText + ImageFile + Image + Text
Output ModalitiesTextText
TokenizerGPTGPT
ModeratedYesYes
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