OpenAI: GPT-3.5 Turbo

OpenAIID: openai/gpt-3.5-turbo

GPT-3.5 Turbo is OpenAI's fastest model. It can understand and generate natural language or code, and is optimized for chat and traditional completion tasks. Training data up to Sep 2021.

Pricing per 1M Tokens

Input (Prompt)$0.50
Output (Completion)$1.50
Cache ReadFree
Cache WriteFree
ImageN/A

Specifications

Context Length16K
Max Output Tokens4K
Input ModalitiesText
Output ModalitiesText
TokenizerGPT
Instruct TypeN/A
Top Provider Context16K
Top Provider Max Output4K
ModeratedYes

Compare this model

See how OpenAI: GPT-3.5 Turbo stacks up against other models.

vs OpenAI: GPT-5.4 Nanovs OpenAI: GPT-5.4 Minivs OpenAI: GPT-5.4 Provs OpenAI: GPT-5.4vs OpenAI: GPT-5.3 Chat

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Last updated: March 23, 2026

First tracked: March 23, 2026