Does GPT-5.4 Nano support zero data retention?

Not self-serve on Pay-as-you-go. Zero data retention for GPT-5.4 Nano is available on request via Opper Enterprise — contact hello@opper.ai.

Where is GPT-5.4 Nano hosted?

GPT-5.4 Nano runs on both EU and US hosting routes through the Opper gateway. Pick the route that matches your residency requirement.

Is GPT-5.4 Nano trained on prompts and outputs?

No. Every hosting route for GPT-5.4 Nano is configured so customer prompts and outputs are not used to train models by default.

Is a GDPR DPA available for GPT-5.4 Nano?

Yes. A GDPR Data Processing Agreement is available on at least one route serving GPT-5.4 Nano. Contact hello@opper.ai to receive it.

GPT-5.4 Nano

by OpenAI

GPT-5.4 Nano is the smallest and most lightweight version of GPT-5.4, designed for tasks where speed matters most. It supports text and vision input, structured output, and tool use, making it suitable for a wide range of practical applications. Recommended for classification, data extraction, ranking, and coding subagents handling simpler supporting work, GPT-5.4 Nano delivers fast responses for workloads where latency directly shapes the product experience. With a 400k token context window, it covers most real-world use cases while keeping compute overhead minimal. The model is part of OpenAI's most capable small-model family, letting developers build responsive systems spanning coding assistants, subagents, and multimodal applications where latency is a primary constraint.

Open in playground Try in chat Compare

Key info

Input

Output

Features

Context window

400K

Max output

128K

Input price

$0.20 /1M

Output price

$1.25 /1M

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

Available routes

GPT-5.4 Nano runs on 2 different routes 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
Azure	EU	Enterprise	No	$0.20	$1.25
OpenAI	US	Enterprise	No	$0.20	$1.25

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

Data handling per route

Each route hosting GPT-5.4 Nano has its own privacy posture, residency, and GDPR terms. Postures are maintained by Opper with a last-verification timestamp.

Azure — Sweden🇸🇪

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

Zero data retention: Available via Opper Enterprise contract.
Training: No training on customer data.
Logging: Abuse monitoring (30-day retention)
Third-party access: None disclosed
GDPR DPA: DPA available
Transfer mechanism: Not applicable — data stays in EU

OpenAI — 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 (30-day retention)
Third-party access: None disclosed
GDPR DPA: DPA available
Transfer mechanism: SCCs

Benchmarks

Independent benchmark scores — composite indices for reasoning, coding, and math, plus individual eval scores where available.

Global rank#40 of 531 LLMs

TierStrong

Output speed148 tok/s

First token2.91s

Intelligence Index38.2

Coding Index43.9

Reasoning & knowledge

GPQA Diamond

82%

Humanity's Last Exam

27%

Long-context reasoning

66%

Coding

SciCode

47%

Agentic & tool use

Terminal-Bench Hard

42%

τ²-Bench Telecom

76%

Math & instruction following

IFBench

76%

See full leaderboard →Benchmarks via Artificial Analysis · View on AA

Get started

Call GPT-5.4 Nano 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.ai/v3/compat",
6});
7
8const completion = await client.chat.completions.create({
9  model: "openai/gpt-5.4-nano",
10  messages: [{ role: "user", content: "Hello" }],
11});
12console.log(completion.choices[0].message.content);