Does DeepSeek V4.1 Flash (1017) support zero data retention?

Yes. DeepSeek V4.1 Flash (1017) is available with zero data retention on DeepInfra, Sference through the Opper gateway.

Where is DeepSeek V4.1 Flash (1017) hosted?

DeepSeek V4.1 Flash (1017) runs on both EU and US hosting routes through the Opper gateway. Pick the route that matches your residency requirement.

Is DeepSeek V4.1 Flash (1017) trained on prompts and outputs?

No. Every hosting route for DeepSeek V4.1 Flash (1017) is configured so customer prompts and outputs are not used to train models by default.

Is a GDPR DPA available for DeepSeek V4.1 Flash (1017)?

Yes. A GDPR Data Processing Agreement is available on at least one route serving DeepSeek V4.1 Flash (1017). Contact hello@opper.ai to receive it.

DeepSeek V4.1 Flash (1017)

by DeepSeek

Versions:DeepSeek V4.1 Flash (1017)DeepSeek V4.1 Flash

DeepSeek-V4.1-Flash-1017, released on October 17, 2026, is a minor update to DeepSeek-V4.1-Flash that keeps its architecture, its one-million-token context window and its native image understanding. DeepSeek describes it as a Pareto improvement: better benchmark results with shorter outputs and faster task completion, so agent runs finish sooner and spend fewer tokens. The update was trained with reinforcement learning from self-feedback on end-to-end project development, aimed at building complete applications from scratch, from browser games to 3D scenes. DeepSeek reports 42.3 on Terminal-Bench 4.0 against 31.2 for the September checkpoint, 77.0 on DeepSWE v1.1 against 74.2, 29.1 on ProgramBench against 20.3, and 42.6 on Humanity's Last Exam without tools against 36.8, with gains on visual benchmarks such as Chartography and BabyVision as well. Weights are published under the MIT license. This key is pinned to the 1017 checkpoint, so it does not move when DeepSeek ships another update; the undated deepseek-v4.1-flash key keeps the September weights. It suits agentic coding harnesses, long-context code and document work, and image-plus-text tasks that need a strong model at a Flash-tier price.

Call DeepSeek V4.1 Flash (1017) on Opper with the OpenAI SDK. Sign up without a credit card. Get started

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Key info

Input

Output

Features

Context window

Max output

393K

Input price

$0.20 /1M$0.0060 cache read

Output price

$0.60 /1M

EU residency available
US residency available
Zero data retention on pay-as-you-go
No training by default
GDPR DPA available

Available routes

DeepSeek V4.1 Flash (1017) runs on 2 different routes through the Opper gateway. Compare residency, zero data retention and training posture at a glance, with full data-handling detail per route below. In the EU it is served by Sference. See every DeepSeek model hosted in the EU. One route also sells flex and priority processing: the same model at another price, picked per request with service_tier. How service tiers work.

Provider	Region	Zero data retention	Training	Input	Output	Cache read
DeepInfra	US		No	$0.20	$0.60	$0.0060
Sference	EU		No	$0.50	$1.50	$0.05	Not offered on this route	Not offered on this route

Live routes and prices as JSON: api.opper.ai/v3/models?q=deepseek-v4.1-flash-1017

Uptime and availability

One of DeepSeek V4.1 Flash (1017)'s 2 routes is on the monitoring board, so the figure below is that provider's availability rather than the model's.

100%route uptime, last 30 days

Its other routes aren't measured here yet.

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. Set up a fallback chain.

Measured over the last 30 days from each provider's official status feed via StatusGator. Refreshed hourly. 1 further route is not on the board yet. See uptime for every provider Opper monitors.

Data handling per route

Each route hosting DeepSeek V4.1 Flash (1017) 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: nothing is logged, held for abuse monitoring or used for training. No training on customer data. US; unknown; DPA available.

Zero data retention: Yes. Nothing is logged, held for abuse monitoring or used for training.
Training: No training on customer data.
Logging: None
Abuse monitoring: No classifier
GDPR DPA: DPA available
Transfer mechanism: unknown

Sference — EU🇪🇺

Zero data retention: nothing is logged, held for abuse monitoring or used for training. No training on customer data. EEA; SCCs; DPA available.

Zero data retention: Yes. Nothing is logged, held for abuse monitoring or used for training.
Training: No training on customer data.
Logging: None
Abuse monitoring: No classifier
Caching: Content cached for replay
Subprocessor access: No subprocessor reads content
GDPR DPA: DPA available
Transfer mechanism: SCCs

Get started

Call DeepSeek V4.1 Flash (1017) through the Opper gateway with one API key. Opper is drop-in compatible with the OpenAI, Anthropic and Google AI SDKs.

DeepSeek V4.1 Flash (1017) is a premium model on Opper. Sign up needs no credit card: you get an API key straight away and the free models work in the playground and the API. Add a card to use premium models, pay-as-you-go with no minimum.

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.ai/v3/compat",
6});
7
8const completion = await client.chat.completions.create({
9  model: "deepseek-v4.1-flash-1017",
10  messages: [{ role: "user", content: "Hello" }],
11});
12console.log(completion.choices[0].message.content);