How much does GPT-3.5 Turbo Instruct cost?

GPT-3.5 Turbo Instruct costs $1.50 per million input tokens and $2.00 per million output tokens on standard pricing. A workload of 20M input and 5M output tokens a month is about $40.

What is the context length of GPT-3.5 Turbo Instruct?

GPT-3.5 Turbo Instruct accepts up to 4,095 tokens (4K) of input and can return up to 3,685 tokens in one response.

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

Tool calling is not listed for GPT-3.5 Turbo Instruct and structured (JSON) outputs. Supported tools: Structured outputs, JSON mode, Log probabilities, Deterministic seed.

What inputs and outputs does GPT-3.5 Turbo Instruct support?

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

Which providers serve GPT-3.5 Turbo Instruct?

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

When was GPT-3.5 Turbo Instruct released?

GPT-3.5 Turbo Instruct was released by OpenAI in 2023-09-28.

GPT-3.5 Turbo Instruct

gpt-3.5-turbo-instruct

API Provider site

This model is a variant of GPT-3.5 Turbo tuned for instructional prompts and omitting chat-related optimizations. Training data: up to Sep 2021. Built by OpenAI.

Prices updated recently

Input price

$1.50

per 1M tokens · Standard

Output price

$2.00

per 1M tokens · Standard

Input limit

tokens

Output limit

tokens

Input formats

TextImageVideoAudioPDF

Output formats

TextImageVideoAudioPDF

Compare

GPT-3.5 Turbo Instruct price history

2 price records since 9/25/2026

GPT-3.5 Turbo Instruct cost calculator

Input20M tokens

Output5M tokens

$40/month

Standard pricing

Overview

What is GPT-3.5 Turbo Instruct?

GPT-3.5 Turbo Instruct is a text & reasoning model from OpenAI. This model is a variant of GPT-3.5 Turbo tuned for instructional prompts and omitting chat-related optimizations. Training data: up to Sep 2021. Its 4K context window and $1.50 input price make it a candidate for quality-focused production applications.

Content workflowsClassification

Rates

GPT-3.5 Turbo Instruct pricing

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

Input · Standard

$1.50

Per 1M tokens

Cached input · Standard

Not available

No listed cached-input rate

Capabilities

GPT-3.5 Turbo Instruct Tools

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

Function calling

Not 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 $1.50 input and $2.00 output per million tokens.
A 4K 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 4K 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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