Does DeepSeek V3.1 Terminus support zero data retention?

Not self-serve on Pay-as-you-go. Zero data retention for DeepSeek V3.1 Terminus is available on request via Opper Enterprise — contact hello@opper.click.

Where is DeepSeek V3.1 Terminus hosted?

DeepSeek V3.1 Terminus runs on US hosting routes through the Opper gateway.

Is DeepSeek V3.1 Terminus trained on prompts and outputs?

No. Every hosting route for DeepSeek V3.1 Terminus is configured so customer prompts and outputs are not used to train models by default.

Is a GDPR DPA available for DeepSeek V3.1 Terminus?

Yes. A GDPR Data Processing Agreement is available on at least one route serving DeepSeek V3.1 Terminus. Contact hello@opper.click to receive it.

DeepSeek V3.1 Terminus

by DeepSeek

DeepSeek-V3.1 Terminus, released in September 2025, refines V3.1 with targeted production-stability improvements. The 671-billion-parameter model keeps 37 billion active parameters and a 128K-token context while addressing the language-consistency and tool-use issues users reported. The update reduces Chinese-English code-mixing and stray-character generation seen in earlier versions, producing more reliable multilingual output. DeepSeek also reports stronger Code Agent and Search Agent behavior, making Terminus a steadier choice for multi-tool agentic workflows. It retains the hybrid thinking and non-thinking modes of V3.1 and is available with open weights on Hugging Face, aimed at deployments that need robust, predictable multilingual performance.

Open in playground Try in chat Compare

Key info

Input

Output

Features

Context window

164K

Max output

164K

Input price

$0.27 /1M

Output price

$0.95 /1M

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

Available routes

DeepSeek V3.1 Terminus 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
DeepInfra	US	Enterprise	No	$0.27	$0.95
Novita	US	Enterprise	No	$0.27	$1.00

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

Data handling per route

Each route hosting DeepSeek V3.1 Terminus has its own privacy posture, residency, and GDPR terms. Postures are maintained by Opper with a last-verification timestamp.

DeepInfra — United States🇺🇸

Zero data retention is available via Opper Enterprise contract. No training on customer data. US; unknown.

Zero data retention: Available via Opper Enterprise contract.
Training: No training on customer data.
Logging: Limited debug logs
Third-party access: None disclosed
GDPR DPA: No DPA
Transfer mechanism: unknown

Novita — 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

Benchmarks

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

Global rank#178 of 534 LLMs

TierEfficient

Output speed0 tok/s

First token0.00s

Intelligence Index21.4

Math Index53.7

Reasoning & knowledge

MMLU-Pro

84%

GPQA Diamond

75%

Humanity's Last Exam

Long-context reasoning

43%

Coding

LiveCodeBench

53%

SciCode

32%

Agentic & tool use

Terminal-Bench Hard

32%

τ²-Bench Telecom

37%

Math & instruction following

AIME 2025

54%

IFBench

41%

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

Get started

Call DeepSeek V3.1 Terminus 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.click/v3/compat",
6});
7
8const completion = await client.chat.completions.create({
9  model: "deepinfra/deepseek-ai/DeepSeek-V3.1-Terminus",
10  messages: [{ role: "user", content: "Hello" }],
11});
12console.log(completion.choices[0].message.content);