---
id: "openai/gpt-3.5-turbo"
also: ["openai/gpt-3.5-turbo", "vercel/openai/gpt-3.5-turbo"]
card_usd_per_m: "0.5 in, 1.5 out, at openai"
cheapest_list_usd_per_m: "0.5 in, 1.5 out, at openai on openrouter"
cheapest_effective_usd_per_m: "0.4998 in, 1.4978 out, at openai on openrouter"
context: 16385
max_output: 4096
input: ["text"]
output: ["text"]
released: "2023-05-28"
params: ["frequency_penalty", "logit_bias", "logprobs", "max_tokens", "presence_penalty", "response_format", "seed", "stop", "structured_outputs", "temperature", "tool_choice", "tools", "top_logprobs", "top_p"]
endpoints: 2
gateways: "openrouter (1), vercel (1)"
no_training: 1
trains: 0
retains_prompts: 1
intelligence: 5.5000
coding: 10.7000
---
# 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.