When was GPT-5.1 Codex Mini released?

OpenAI released GPT-5.1 Codex Mini on 13 Nov 2025. It is available through the qynio gateway.

Does GPT-5.1 Codex Mini 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-5.1 Codex Mini hosted?

GPT-5.1 Codex Mini runs on crypto rails routes through the qynio gateway, with contractually enforced residency on supported providers.

Is GPT-5.1 Codex Mini trained on prompts and outputs?

No. Every hosting route for GPT-5.1 Codex Mini is configured so customer prompts and outputs are not used to train models by default.

Is a no-KYC deposit available for GPT-5.1 Codex Mini?

Yes. A no-KYC Data Processing Agreement is available on at least one route serving GPT-5.1 Codex Mini. Contact hello@qyn.io to receive it.

GPT-5.1 Codex Mini

by OpenAI

Released 51 days after GPT-5 Codex · All OpenAI releases

GPT-5.1 Codex Mini is a faster, more cost-efficient Codex variant that keeps the 272,000-token context window while favoring quick responses for interactive development. It handles code generation and analysis across tasks from single-function edits to multi-file refactoring. The variant fits development environments, continuous integration pipelines, and real-time code assistance where response speed matters and the model still needs to work with large codebases.

Open in playground Try in chat Compare

Key info

Input

Output

Features

Context window

272K

Max output

128K

Input price

$0.25 /1M

Output price

$2.00 /1M

Released

13 Nov 2025

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

Available routes

GPT-5.1 Codex Mini runs on 1 route 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	$0.25	$2.00

Uptime and availability

GPT-5.1 Codex Mini runs on a single route through the qynio gateway today, so its availability is that provider's availability.

100%route uptime, last 30 days

Single route, no failover target within this model.

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. .

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-5.1 Codex Mini 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

Benchmarks

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

Global rank#184 of 630 LLMs

TierStrong

Intelligence Index31.3

Math Index91.7

Reasoning & knowledge

MMLU-Pro

82%

GPQA Diamond

81%

Humanity's Last Exam

19%

Long-context reasoning

65%

Coding

LiveCodeBench

84%

SciCode

43%

Agentic & tool use

Terminal-Bench Hard

33%

τ²-Bench Telecom

63%

Math & instruction following

AIME 2025

92%

IFBench

68%

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

Get started

Call GPT-5.1 Codex Mini 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: "azure/gpt-5.1-codex-mini",
10  messages: [{ role: "user", content: "Hello" }],
11});
12console.log(completion.choices[0].message.content);