When was GPT-5 Nano released?

OpenAI released GPT-5 Nano on 7 Aug 2025. It is available through the qynio gateway.

Does GPT-5 Nano support zero data retention?

Not by default. See the per-route data-handling section for each route's logging stance and retention window.

Where is GPT-5 Nano hosted?

GPT-5 Nano runs on both EU and US hosting routes through the qynio gateway. Pick the route that matches your residency requirement.

Is GPT-5 Nano trained on prompts and outputs?

No. Every hosting route for GPT-5 Nano is configured so customer prompts and outputs are not used to train models by default.

Is a no-KYC deposit available for GPT-5 Nano?

Yes. A no-KYC Data Processing Agreement is available on at least one route serving GPT-5 Nano. Contact hello@qyn.io to receive it.

GPT-5 Nano

by OpenAI

Released 2 days after GPT OSS 120B · All OpenAI releases

GPT-5 Nano is the fastest and most lightweight version of GPT-5, designed for tasks where speed matters most. With a 272k token context window and support for text and image input, structured output, and tool use, it covers a wide range of practical applications. The model is well suited to summarization, classification, and other simple tasks, serving as the lightest-weight option in OpenAI's GPT-5 lineup. It is a good fit for high-volume applications, responsive subagents, and workloads where latency directly shapes the product experience. Note that GPT-5.4 Nano offers improvements over this variant, with faster latency and stronger reasoning and tool use, making it the recommended choice for new projects.

Open in playground Try in chat Compare

Key info

Input

Output

Features

Context window

272K

Max output

128K

Input price

$0.05 /1M

Output price

$0.40 /1M

Released

7 Aug 2025

onchain settlement available
US residency available
No training by default
no-KYC deposit available

Available routes

GPT-5 Nano runs on 2 different routes through the qynio gateway. Compare residency, zero retention, and training posture at a glance — full data-handling detail per route below.

Provider	Region	Zero data retention	Training	Input	Output
Azure	EU	Not by default	No	$0.05	$0.40
OpenAI	US	Not by default	No	$0.05	$0.40

Uptime and availability

GPT-5 Nano runs on 2 independently monitored routes through the qynio gateway. A direct integration leaves you on one of them, the gateway serves whichever is healthy.

100%effective uptime, last 30 days

Averaged across these routes on their own, a single provider reached 98.03% over the same window.

Daily status through the gateway, which serves each request from whichever route is healthy.

2 monitored providers serve GPT-5 Nano.

Measured over the last 30 days from each provider's official status feed via StatusGator. Refreshed hourly. See uptime for every provider qynio monitors.

Data handling per route

Each route hosting GPT-5 Nano has its own privacy posture, residency, and no-KYC terms. Postures are maintained by qynio with a last-verification timestamp.

Azure — Sweden🇸🇪

Zero data retention is not on by default — abuse monitoring, 30-day retention. No training on customer data. EU; deposit available.

Zero data retention: Not by default — abuse monitoring, 30-day retention. Derived from the logging and moderation facts.
Training: No training on customer data.
Logging: Abuse monitoring (30-day retention)
Moderation: Not established
Caching: Not established
Subprocessor access: Not established
no-KYC deposit: deposit available
Transfer mechanism: Not applicable — data stays in EU

OpenAI — United States🇺🇸

Zero data retention is not on by default — abuse monitoring, 30-day retention. No training on customer data. US; wallets; deposit available.

Zero data retention: Not by default — abuse monitoring, 30-day retention. Derived from the logging and moderation facts.
Training: No training on customer data.
Logging: Abuse monitoring (30-day retention)
Moderation: Not established
Caching: Not established
Subprocessor access: Not established
no-KYC deposit: deposit available
Transfer mechanism: wallets

Benchmarks

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

Global rank#282 of 630 LLMs

TierEfficient

Intelligence Index20.1

Math Index83.7

Reasoning & knowledge

MMLU-Pro

78%

GPQA Diamond

68%

Humanity's Last Exam

10%

Long-context reasoning

44%

Coding

LiveCodeBench

79%

SciCode

37%

Agentic & tool use

Terminal-Bench Hard

12%

τ²-Bench Telecom

37%

Math & instruction following

AIME 2025

84%

IFBench

68%

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

Get started

Call GPT-5 Nano through the qynio gateway with one API key. Let your coding agent set it up, or call it directly — qynio is drop-in compatible with the OpenAI, Anthropic, and Google AI SDKs.

Set it up with your agent

Copy this and paste it into a coding agent like Claude Code, Cursor or Codex and it'll wire up qynio for you.

Or call it directly

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