OpenAI: GPT-3.5 Turbo Instruct

GPT-3.5 Turbo Instruct is OpenAI's instruction-tuned variant of GPT-3.5 Turbo, released 2023-09, built for direct prompt-following tasks without chat-specific optimizations. It is designed for straightforward completions and structured output.

Modalities
inTextoutText
Price / 1M−70%
$0.45 / $0.60$1.50 / $2.00
Context
4K
Released
Sep 28, 2023
Knowledge cutoff
Sep 30, 2021

Channels

Every channel serves the same model, but they differ in price and stability. On each API key in the Platform, you pick a primary and a backup channel per vendor, and each billing line shows which channel served the request.

Provider
Discount
Input /M
Output /M
Cache read /M
Cache write 5m /M
Cache write 1h /M
Codexcheap
−70%
$0.45
$0.60
—
—
—
Defaultstable
−30%
$1.05
$1.40
—
—
—

Capabilities

Structured output

Parameters

Request parameters this model accepts through the API.

frequency_penaltylogit_biaslogprobsmax_tokenspresence_penaltyresponse_formatseedstopstructured_outputstemperaturetop_logprobstop_p

Cost calculator

Pick a channel and a usage scenario, then drag the sliders to match your workload. Each scenario assumes a different prompt-cache hit rate.

Channel
Scenario
Unit $0.45 / $0.60 /1MDaily chat: 40% cache hit rate assumed · cache read $0.04 /1M
List price $188.16On MirAPI$56.45/ moYou save $131.71Create an API key

Showcase

Every chat model gets the same three fixed prompts. Outputs are archived verbatim, so you can copy a prompt and reproduce the result.

Task prompt · identical for all models
Build a single-file HTML page using three.js from a CDN: a low-poly planet with a tilted ring of ~200 orbiting particles, a soft key light plus rim light, slow auto-rotation, and drag-to-orbit controls. No build tools — one file only.
Archived output
Archive not published yet

Every model will run this exact prompt, and its output will appear here verbatim with token counts and the cost per run.

Quick start

import os
from openai import OpenAI

client = OpenAI(
    base_url="https://api.mirapi.ai/v1",   # changed
    api_key=os.environ["MIRAPI_API_KEY"],   # changed
)

resp = client.chat.completions.create(
    model="gpt-3.5-turbo-instruct",
    messages=[{"role": "user", "content": "Hello"}],
)
Wire GPT-3.5 Turbo Instruct into your product

1M free tokens to start, no card required. It’s OpenAI-compatible, so you only change the base URL.

Start free