Does Qwen3 4B support zero data retention?

Not self-serve on Pay-as-you-go. Zero data retention for Qwen3 4B is available on request via Opper Enterprise — contact hello@opper.click.

Where is Qwen3 4B hosted?

Qwen3 4B runs on US hosting routes through the Opper gateway.

Is Qwen3 4B trained on prompts and outputs?

No. Every hosting route for Qwen3 4B is configured so customer prompts and outputs are not used to train models by default.

Is a GDPR DPA available for Qwen3 4B?

Yes. A GDPR Data Processing Agreement is available on at least one route serving Qwen3 4B. Contact hello@opper.click to receive it.

Qwen3 4B

by Alibaba

Qwen3-4B-FP8 is the FP8-quantized build of the 4 billion parameter model, aimed at on-device and edge inference with a small memory footprint while retaining instruction-following capability. The fine-grained quantization with a 128 block size trims memory needs for smaller hardware. Despite its compact size, the model supports switchable thinking and non-thinking modes: it can generate step-by-step reasoning in think blocks for mathematics, logic, and coding, or answer directly for conversational tasks. It supports a 128K context window for longer documents and code files, along with tool calling for agentic applications. Drawing on the broad pretraining of the Qwen3 family and strong multilingual coverage across 100+ languages, Qwen3-4B competes with larger models from earlier generations on general knowledge and reasoning. It suits mobile devices, embedded systems, rapid prototyping, and latency-sensitive scenarios. Open-weight under Apache 2.0.

Open in playground Try in chat Compare

Key info

Input

Output

Features

Context window

128K

Max output

Input price

$0.03 /1M

Output price

$0.03 /1M

US residency available
Zero data retention via Enterprise
No training by default
GDPR DPA available

Available routes

Qwen3 4B runs on 1 route through the Opper gateway. Compare residency, ZDR, and training posture at a glance — full data-handling detail per route below.

Provider	Region	Zero data retention	Training	Input	Output
Novita	US	Enterprise	No	$0.03	$0.03

Training posture across routes: No training on prompts by default.

Data handling per route

Each route hosting Qwen3 4B has its own privacy posture, residency, and GDPR terms. Postures are maintained by Opper with a last-verification timestamp.

Novita — United States🇺🇸

Zero data retention is available via Opper Enterprise contract. No training on customer data. US; SCCs; DPA available.

Zero data retention: Available via Opper Enterprise contract.
Training: No training on customer data.
Logging: Abuse monitoring
Third-party access: None disclosed
GDPR DPA: DPA available
Transfer mechanism: SCCs

Get started

Call Qwen3 4B through the Opper gateway with one API key. Let your coding agent set it up, or call it directly — Opper is drop-in compatible with the OpenAI, Anthropic, and Google AI SDKs.

Set it up with your agent

Copy this and paste it into your coding agent — Claude Code, Cursor, Codex, and more — and it'll wire up Opper for you.

Or call it directly

1import OpenAI from "openai";
2
3const client = new OpenAI({
4  apiKey: process.env.OPPER_API_KEY,
5  baseURL: "https://api.opper.click/v3/compat",
6});
7
8const completion = await client.chat.completions.create({
9  model: "novita/qwen/qwen3-4b-fp8",
10  messages: [{ role: "user", content: "Hello" }],
11});
12console.log(completion.choices[0].message.content);