How much does GPT-3.5 Turbo cost?

GPT-3.5 Turbo costs $0.50 per million input tokens and $1.50 per million output tokens on standard pricing. A workload of 20M input and 5M output tokens a month is about $18.

What is the context length of GPT-3.5 Turbo?

GPT-3.5 Turbo accepts up to 16,385 tokens (16K) of input and can return up to 4,096 tokens in one response.

Does GPT-3.5 Turbo support tool calling and structured outputs?

Yes, GPT-3.5 Turbo supports function/tool calling and structured (JSON) outputs. Supported tools: Function calling, Structured outputs, JSON mode, Log probabilities, Deterministic seed.

What inputs and outputs does GPT-3.5 Turbo support?

GPT-3.5 Turbo accepts Text as input and produces Text as output.

Which providers serve GPT-3.5 Turbo?

GPT-3.5 Turbo is available from 1 API provider: OpenAI. Prices can differ by provider.

When was GPT-3.5 Turbo released?

GPT-3.5 Turbo was released by OpenAI in 2023-05-28.

GPT-3.5 Turbo

gpt-3.5-turbo

API Provider site

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. Built by OpenAI.

Prices updated recently

Input price

$0.50

per 1M tokens · Standard

Output price

$1.50

per 1M tokens · Standard

Input limit

16K

tokens

Output limit

tokens

Input formats

TextImageVideoAudioPDF

Output formats

TextImageVideoAudioPDF

Compare

GPT-3.5 Turbo price history

2 price records since 9/25/2026

GPT-3.5 Turbo cost calculator

Input20M tokens

Output5M tokens

$18/month

Standard pricing

Overview

What is GPT-3.5 Turbo?

GPT-3.5 Turbo is a text & reasoning model from OpenAI. 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. Its 16K context window and $0.50 input price make it a candidate for quality-focused production applications.

Content workflowsClassification

Rates

GPT-3.5 Turbo pricing

Pricing is based on token usage. Provider-specific caching, batch, regional, and tool charges may affect the final cost.

Input · Standard

$0.50

Per 1M tokens

Cached input · Standard

Not available

No listed cached-input rate

Capabilities

GPT-3.5 Turbo Tools

Tools available when using GPT-3.5 Turbo through supported provider APIs.

Function calling

Supported

Structured outputs

Supported

JSON mode

Supported

Reasoning

Not supported

Built-in web search

Not supported

Log probabilities

Supported

Deterministic seed

Supported

Parallel tool calls

Not supported

Prompt caching

Not supported

Strengths and limitations

Strengths

Priced at $0.50 input and $1.50 output per million tokens.
A 16K context window covers most focused application workflows.
Supports text & reasoning workloads in one model.

Limitations

Real-world cost still depends on prompt length, response length and provider-specific billing rules.
The 16K context window is smaller than several long-context alternatives.
Arena Elo and MMLU-Pro are directional; test accuracy, latency and reliability on your own workload before committing.

Arena Elo, MMLU-Pro and pricing figures are illustrative; validate current vendor terms before purchase.

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