GPT-3.5 Turbo 16k

OpenAI · released 28 Aug 2023

Input$3per 1M tokens

Output$4per 1M tokens

Context16Ktokens

WeightsClosed

context on a 1K–2M scale

About

This model offers four times the context length of gpt-3.5-turbo, allowing it to support approximately 20 pages of text in a single request at a higher cost. Training data: up...

Details

Lab: OpenAIopenrouter.ai · 3 Oct 2026
Context: 16Kopenrouter.ai · 3 Oct 2026
Input price: $3 / 1Mopenrouter.ai · 3 Oct 2026
Output price: $4 / 1Mopenrouter.ai · 3 Oct 2026
Max output: 4,096 tokensopenrouter.ai · 3 Oct 2026
Inputs: textopenrouter.ai · 3 Oct 2026
Open weights: Noopenrouter.ai · 3 Oct 2026

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Sources

openrouter.ai/openai/gpt-3.5-turbo-16k· checked 3 Oct 2026