How much does GPT-3.5 Turbo Instruct cost?

Billing is usage-based: $1.5 per million input tokens and $2 per million output tokens. There is no fixed monthly fee. You pay only for what you use, and current rates are shown in the Hormouz dashboard.

How do I access GPT-3.5 Turbo Instruct from inside Iran?

Create an account on Hormouz and generate an API key. Hormouz provides a stable path to GPT-3.5 Turbo Instruct from inside Iran, with no foreign credit card or circumvention tooling required.

Is GPT-3.5 Turbo Instruct compatible with OpenAI code?

Yes. Hormouz exposes an OpenAI-compatible API. Just change the base URL to Hormouz and swap in your Hormouz key. Your existing SDKs and chat-completions code run without a rewrite.

What context window and capabilities does GPT-3.5 Turbo Instruct have?

GPT-3.5 Turbo Instruct supports a context window of up to 4K tokens. That makes it a good fit for long documents, codebases and multi-turn conversations.

What is GPT-3.5 Turbo Instruct good for?

GPT-3.5 Turbo Instruct works well for chat assistants, content generation, summarization, drafting and general text tasks.

What is GPT-3.5 Turbo Instruct's knowledge cutoff?

GPT-3.5 Turbo Instruct's training data runs through Sep 2021. For information newer than that, provide the relevant context in your prompt.

OpenAI: GPT-3.5 Turbo Instruct: AI model

GPT-3.5 Turbo Instruct is an OpenAI model. An instruction-tuned completion variant of GPT-3.5 Turbo, with up to 4K-token context. Reachable from inside Iran through Hormouz.

Context window:: 4,095 tokens
Input:: $1.5/1M tokens
Output:: $2/1M tokens
Type:: text

Streaming

GPT-3.5 Turbo Instruct is an instruction-tuned completion variant of GPT-3.5 Turbo. Instruct is tuned for single-turn instructional prompts rather than chat, following the older completion style. It supports a context window of up to 4K tokens, with training data through Sep 2021.

GPT-3.5 Turbo Instruct is served through Hormouz behind an OpenAI-compatible API. Point your base URL at Hormouz and drop in a Hormouz key, and existing OpenAI SDK code runs unchanged.

Pricing is usage-based: $1.5 per million input tokens and $2 per million output tokens. Hormouz provides stable access to the model from inside Iran, with no foreign credit card or circumvention tooling required.

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.

Quickstart

curl https://api.hormouz.net/v1/chat/completions \
  -H "Authorization: Bearer ng-YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "openai/gpt-3.5-turbo-instruct",
    "messages": [{"role": "user", "content": "Hello!"}]
  }'

Specs

Vendor	OpenAI
Type	Text
Context window	4,095 tokens
Pricing	$1.50/M in · $2.00/M out
API	Chat Completions
Capabilities	Streaming

Code example

cURL

curl https://api.hormouz.net/v1/chat/completions \
  -H "Authorization: Bearer ng-YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "openai/gpt-3.5-turbo-instruct",
    "messages": [{"role": "user", "content": "Hello!"}]
  }'

Python

from openai import OpenAI
client = OpenAI(api_key="ng-YOUR_API_KEY", base_url="https://api.hormouz.net/v1")
response = client.chat.completions.create(
    model="openai/gpt-3.5-turbo-instruct",
    messages=[{"role": "user", "content": "Hello!"}],
)
print(response.choices[0].message.content)

JavaScript

import OpenAI from "openai";
const client = new OpenAI({ apiKey: "ng-YOUR_API_KEY", baseURL: "https://api.hormouz.net/v1" });
const response = await client.chat.completions.create({
  model: "openai/gpt-3.5-turbo-instruct",
  messages: [{ role: "user", content: "Hello!" }],
});
console.log(response.choices[0].message.content);

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One Hormouz key reaches OpenAI: GPT-3.5 Turbo Instruct and 600+ other models, and you pay only for what you use.
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FAQ

How much does GPT-3.5 Turbo Instruct cost?: Billing is usage-based: $1.5 per million input tokens and $2 per million output tokens. There is no fixed monthly fee. You pay only for what you use, and current rates are shown in the Hormouz dashboard.
How do I access GPT-3.5 Turbo Instruct from inside Iran?: Create an account on Hormouz and generate an API key. Hormouz provides a stable path to GPT-3.5 Turbo Instruct from inside Iran, with no foreign credit card or circumvention tooling required.
Is GPT-3.5 Turbo Instruct compatible with OpenAI code?: Yes. Hormouz exposes an OpenAI-compatible API. Just change the base URL to Hormouz and swap in your Hormouz key. Your existing SDKs and chat-completions code run without a rewrite.
What context window and capabilities does GPT-3.5 Turbo Instruct have?: GPT-3.5 Turbo Instruct supports a context window of up to 4K tokens. That makes it a good fit for long documents, codebases and multi-turn conversations.
What is GPT-3.5 Turbo Instruct good for?: GPT-3.5 Turbo Instruct works well for chat assistants, content generation, summarization, drafting and general text tasks.
What is GPT-3.5 Turbo Instruct's knowledge cutoff?: GPT-3.5 Turbo Instruct's training data runs through Sep 2021. For information newer than that, provide the relevant context in your prompt.

Updated 2026-10-13