Does O1 support zero data retention?

Not self-serve on Pay-as-you-go. Zero data retention for O1 is available on request via Opper Enterprise — contact hello@opper.ai.

O1 runs on US hosting routes through the Opper gateway.

Is O1 trained on prompts and outputs?

No. Every hosting route for O1 is configured so customer prompts and outputs are not used to train models by default.

Is a GDPR DPA available for O1?

Yes. A GDPR Data Processing Agreement is available on at least one route serving O1. Contact hello@opper.ai to receive it.

O1

by OpenAI

O1 is OpenAI's reasoning-focused model, trained with reinforcement learning to reason deeply before responding. It produces a long internal chain of thought, spending substantial computation on problem-solving rather than immediate generation. The model accepts text and image input and produces text output, with up to 100,000 output tokens. It supports function calling, structured outputs, streaming, and the Responses API for applications that need extended reasoning. O1 is particularly strong in physics, chemistry, biology, mathematics, and software engineering, where multi-step reasoning provides the greatest advantage. With a 200,000 token context window, it handles substantial problem specifications and long documents.

Open in playground Try in chat Compare

Key info

Input

Output

Features

Context window

200K

Max output

100K

Input price

$15.00 /1M

Output price

$60.00 /1M

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

Available routes

O1 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
OpenAI	US	Enterprise	No	$15.00	$60.00

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

Data handling per route

Each route hosting O1 has its own privacy posture, residency, and GDPR terms. Postures are maintained by Opper with a last-verification timestamp.

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#157 of 531 LLMs

TierEfficient

Output speed104 tok/s

First token18.36s

Intelligence Index23.4

Coding Index20.5

Reasoning & knowledge

MMLU-Pro

84%

GPQA Diamond

75%

Humanity's Last Exam

Long-context reasoning

59%

Coding

LiveCodeBench

68%

SciCode

36%

Agentic & tool use

Terminal-Bench Hard

13%

τ²-Bench Telecom

63%

Math & instruction following

IFBench

70%

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

Get started

Call O1 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/o1",
10  messages: [{ role: "user", content: "Hello" }],
11});
12console.log(completion.choices[0].message.content);