OpenAI: GPT-3.5 Turbo Instruct

Public pricingIntelligence 69/100Small memory

OpenAI: GPT-3.5 Turbo Instruct is a text model for general chat, analysis, and production use. It combines steady general-purpose performance with a 4K tokens context window and a balanced-cost profile. Use it for general chat, analysis, and production workloads when quality, speed, and cost matters.

Input

$1.50/1M

Output

$2.00/1M

Cached

$0.15/1M

Batch

$0.75/1M

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Technical specifications

GPT-3.5 Turbo Instruct at a glance.

Memory

4,095

tokens

Max reply

4,096

tokens

Memory tier

Small

a few emails or a short document

Tokenizer

tiktoken-o200k

Released

Sep 2023

Training cutoff

Sep 2021

Availability

Public pricing

Status

active

Benchmarks

Quality benchmarks

Independent evaluations from public leaderboards. Higher is better.

  • gpqa_diamond

    28.03

What it can do

Capabilities & limits.

  • Understands images
  • Deep step-by-step thinking
  • Uses tools / calls functions
  • Strict JSON output
  • Streams replies
  • Fine-tunable on your data

When to pick GPT-3.5 Turbo Instruct

  • GPT-3.5 Turbo Instruct fits general-purpose text tasks within its memory tier.

When to look elsewhere

  • Your workload involves images — pick a vision-capable model instead.
  • You need tool-use / function calling for agent workflows.
  • Your inputs routinely exceed short documents.

Alternatives

Similar models to compare.

FAQ

GPT-3.5 Turbo Instruct — the questions we see most.

Pricing, capabilities, alternatives — generated from the same data that powers the calculator above.

Get instant answers from our AI agent

At a typical workload of 50,000 conversations a month with 1,500-token prompts and 800-token replies, GPT-3.5 Turbo Instruct costs roughly $193 per month. Input is $1.50 /1M tokens and output is $2.00 /1M tokens.
GPT-3.5 Turbo Instruct has a 4,095-token context window (small memory — a few emails or a short document). That means you can fit about 768 words of input and history in a single call.
Beyond text generation, GPT-3.5 Turbo Instruct supports fine-tuning on your own data. It streams replies by default.
GPT-3.5 Turbo Instruct was released in September 2023, with training data cut off around September 2021.
Models in a similar class include GPT-5, GPT-5 Chat, GPT-5 Codex. The "Similar models" section below this FAQ links into each.

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