openai

OpenAI: GPT-3.5 Turbo Instruct

GPT-3.5 Turbo Instruct from OpenAI is designed for text-based interactions with a context length of 4095 tokens and can generate up to 3685 completion tokens in response. While it excels at handling text inputs, it does not support tools, reasoning processes, or structured output formats. Given its current benchmark coverage of zero, there's no independent evaluation of its performance yet. Considering its pricing model-$1.5 per million input tokens and $2.0 per million output tokens-it might be more suitable for projects with moderate token requirements where cost is a primary concern. However, due to the lack of benchmark data, users should proceed with cautious optimism, especially if detailed performance metrics are crucial.

Quality Score
58/100
price + capability + benchmarks
Input Price
$1.50
per 1M tokens · checked 2026-09-23
Output Price
$2.00
per 1M tokens · checked 2026-09-23
Context Window
4,095
tokens
Model ID
openai/gpt-3.5-turbo-instruct
Vendor
openai
Released
September 2023
Tokenizer
GPT
Input Modalities
text
Output Modalities
text
Max Output
3,685 tokens
Tool Calling
not supported
Structured Output
✓ supported
Reasoning Mode
not supported
Vision
text only
Audio
no
Moderated
yes

What it costs in practice

Computed from the current $1.50/M input and $2.00/M output rates. Run your own numbers →

JobTokensCost
Summarize a 50-page report 30k in / 1.5k out $0.05
Classify 1,000 customer emails 500k in / 50k out $0.85
A month of a busy support chatbot 5M in / 2M out $11.50

Similar models

Quick answers

How much does OpenAI: GPT-3.5 Turbo Instruct cost?
$1.50 per million input tokens and $2.00 per million output tokens.
What is OpenAI: GPT-3.5 Turbo Instruct's context window?
4,095 tokens, roughly 6 pages of text in a single request.
Does OpenAI: GPT-3.5 Turbo Instruct support tool calling?
It supports structured output.
Can OpenAI: GPT-3.5 Turbo Instruct process images?
No, it is text-only on the input side.

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