Does GPT-5.6 Terra support zero data retention?

Not self-serve on Pay-as-you-go. Zero data retention for GPT-5.6 Terra is available on request via Opper Enterprise — contact hello@opper.click.

Where is GPT-5.6 Terra hosted?

GPT-5.6 Terra runs on US hosting routes through the Opper gateway.

Is GPT-5.6 Terra trained on prompts and outputs?

No. Every hosting route for GPT-5.6 Terra is configured so customer prompts and outputs are not used to train models by default.

Is a GDPR DPA available for GPT-5.6 Terra?

Yes. A GDPR Data Processing Agreement is available on at least one route serving GPT-5.6 Terra. Contact hello@opper.click to receive it.

GPT-5.6 Terra

by OpenAI

GPT-5.6 model that balances intelligence and cost. 1M context window with reasoning.

Open in playground Try in chat Compare

Key info

Input

Output

Features

Context window

1.1M

Max output

128K

Input price

$2.50 /1M

Output price

$15.00 /1M

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

Available routes

GPT-5.6 Terra 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	$2.50	$15.00

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

Data handling per route

Each route hosting GPT-5.6 Terra 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#6 of 557 LLMs

TierFrontier

Output speed150 tok/s

First token109.94s

Intelligence Index55.0

Coding Index76.7

Reasoning & knowledge

GPQA Diamond

93%

Humanity's Last Exam

42%

Long-context reasoning

74%

Coding

SciCode

54%

Agentic & tool use

Terminal-Bench Hard

58%

τ²-Bench Telecom

86%

Math & instruction following

IFBench

71%

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

Get started

Call GPT-5.6 Terra 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 a coding agent like Claude Code, Cursor or Codex 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: "openai/gpt-5.6-terra",
10  messages: [{ role: "user", content: "Hello" }],
11});
12console.log(completion.choices[0].message.content);