GPT-3.5 Turbo is OpenAI's legacy general-purpose model, tuned for fast, low-cost text and code generation. It handles chat, summarization, classification, and simple coding tasks, and supports function calling and structured outputs for application integration. The model carries a context window of roughly 16,000 tokens, enough for moderate-length conversations and documents. It established the conversational pattern that later OpenAI models built on. GPT-3.5 Turbo is now considered legacy, with OpenAI steering new work toward newer, more capable, multimodal models. It remains a reasonable choice for high-volume, latency-sensitive tasks where deep reasoning is not required.
Call GPT-3.5 Turbo on Opper with the OpenAI SDK. Sign up without a credit card. Get started
GPT-3.5 Turbo runs on 1 route through the Opper gateway. Compare residency, zero data retention and training posture at a glance, with full data-handling detail per route below.
| Provider | Region | Zero data retention | Training | Input | Output | Cache read |
|---|---|---|---|---|---|---|
| EU | No | $0.50 | $1.50 | Input price |
GPT-3.5 Turbo runs on a single route through the Opper gateway today, so its availability is that provider's availability.
Name a second model in the same request and the gateway tries it on retriable errors, so a busy hour never has to reach your users. Set up a fallback chain.
Measured over the last 30 days from each provider's official status feed via StatusGator. Refreshed hourly. See uptime for every provider Opper monitors.
Each route hosting GPT-3.5 Turbo has its own privacy posture, residency, and GDPR terms. Postures are maintained by Opper with a last-verification timestamp.
Zero data retention with abuse monitoring: nothing is logged or used for training; content flagged by abuse monitoring is held for review. No training on customer data. EU; DPA available.
Call GPT-3.5 Turbo through the Opper gateway with one API key. Opper is drop-in compatible with the OpenAI, Anthropic and Google AI SDKs.
GPT-3.5 Turbo is a premium model on Opper. Sign up needs no credit card: you get an API key straight away and the free models work in the playground and the API. Add a card to use premium models, pay-as-you-go with no minimum.
Copy this and paste it into a coding agent like Claude Code, Cursor or Codex and it'll wire up Opper for you.
import OpenAI from "openai";const client = new OpenAI({apiKey: process.env.OPPER_API_KEY,baseURL: "https://api.opper.ai/v3/compat",});const completion = await client.chat.completions.create({model: "azure/gpt3-eu",messages: [{ role: "user", content: "Hello" }],});console.log(completion.choices[0].message.content);
Side-by-side on privacy, EU hosting, pricing, and benchmarks.
