Does Claude Sonnet 4 support zero data retention?

Not self-serve on Pay-as-you-go. Zero data retention for Claude Sonnet 4 is available on request via Opper Enterprise — contact hello@opper.ai.

Where is Claude Sonnet 4 hosted?

Claude Sonnet 4 runs on both EU and US hosting routes through the Opper gateway. Pick the route that matches your residency requirement.

Is Claude Sonnet 4 trained on prompts and outputs?

No. Every hosting route for Claude Sonnet 4 is configured so customer prompts and outputs are not used to train models by default.

Is a GDPR DPA available for Claude Sonnet 4?

Yes. A GDPR Data Processing Agreement is available on at least one route serving Claude Sonnet 4. Contact hello@opper.ai to receive it.

Claude Sonnet 4

by Anthropic

Claude Sonnet 4 is a significant upgrade to Claude Sonnet 3.7, reaching a state-of-the-art 72.7% on SWE-bench with stronger coding and reasoning. It balances capability with efficiency and responds more precisely to instructions for greater control over implementation. Sonnet 4 supports extended thinking with integrated tool use and parallel tool execution, enabling capable agentic workflows. It pairs vision with text analysis and shows substantial gains in multi-file development, with fewer navigation errors across a codebase. With a 200K token context window and support for tools, vision, and PDF processing, Sonnet 4 produces clean code with precise, surgical edits. It suits everyday applications that want near-frontier performance at practical efficiency.

Open in playground Try in chat Compare

Key info

Input

Output

Features

Context window

200K

Max output

64K

Input price

$3.00 /1M

Output price

$15.00 /1M

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

Available routes

Claude Sonnet 4 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
Google Cloud	US	Enterprise	No	$3.00	$15.00
Google Cloud	EU	Enterprise	No	$3.00	$15.00

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

Data handling per route

Each route hosting Claude Sonnet 4 has its own privacy posture, residency, and GDPR terms. Postures are maintained by Opper with a last-verification timestamp.

Google Cloud — 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
Third-party access: None disclosed
GDPR DPA: DPA available
Transfer mechanism: SCCs

Google Cloud — European Union🇪🇺

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
Third-party access: None disclosed
GDPR DPA: DPA 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#9 of 531 LLMs

TierStrong

Output speed66 tok/s

First token94.63s

Intelligence Index47.2

Coding Index50.9

Reasoning & knowledge

GPQA Diamond

88%

Humanity's Last Exam

30%

Long-context reasoning

71%

Coding

SciCode

47%

Agentic & tool use

Terminal-Bench Hard

53%

τ²-Bench Telecom

76%

Math & instruction following

IFBench

57%

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

Get started

Call Claude Sonnet 4 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: "gcp/claude-sonnet-4",
10  messages: [{ role: "user", content: "Hello" }],
11});
12console.log(completion.choices[0].message.content);