OpenAI: GPT-3.5 Turbo 16k vs OpenAI: GPT-5.4 Pro

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

SpecOpenAI: GPT-3.5 Turbo 16kOpenAI: GPT-5.4 Pro
ProviderOpenAIOpenAI
Context Length16K1.1M
Max Output4K128K
Input Price/1M$3.00$30
Output Price/1M$4.00$180
Cache Read/1MFreeFree
Cache Write/1MFreeFree
Input ModalitiesTextText + Image + File
Output ModalitiesTextText
TokenizerGPTGPT
ModeratedYesYes