DeepSeek AI in South Africa: is it free, and is it safe?

DeepSeek AI is the Chinese chatbot whose app shot to the top of Apple’s App Store in January 2025. It is free, it is capable, and developers like it because its models can be downloaded and run by anyone.

It also stores your data in China. For a South African business, that one fact decides what you can safely put into it. This guide covers what DeepSeek is, how to log in safely, how it compares with ChatGPT and Claude, and what POPIA means for using it. Facts were checked on 28 September 2026.

What is DeepSeek?

DeepSeek is an AI company founded in 2023 in Hangzhou, China, according to the Associated Press. Its privacy policy names Hangzhou DeepSeek Artificial Intelligence Co., Ltd. as the company in control of your data. It builds large language models, the same kind of technology behind ChatGPT and Claude, and publishes many of them as open weights that anyone can download.

Its recent releases, from DeepSeek’s own release notes:

DeepSeek-V4.1-Flash is published under the MIT licence on Hugging Face. DeepSeek says it outperforms V4-Pro, and since 14 September 2026 its API has sent V4-Pro requests to V4.1-Flash until a V4.1-Pro model launches.

DeepSeek AI chat: the website and the app

You can use DeepSeek AI chat at chat.deepseek.com or in the DeepSeek app for iPhone and Android. Like ChatGPT, it answers questions, writes, summarises and helps with code. Two options matter: DeepThink, its reasoning mode for harder questions, and Search, which lets it look things up on the web.

DeepSeek login: how to sign up and log in safely

Many people search for the DeepSeek login page, or for Into the Unknown, the tagline on DeepSeek’s official site and sign-in page. Use only these official addresses:

• Website: deepseek.com
• Chat and login: chat.deepseek.com, which opens DeepSeek’s sign-in page
• iPhone: DeepSeek - AI Assistant in the App Store, with Hangzhou DeepSeek Artificial Intelligence Co., Ltd. as the provider
• Android: DeepSeek - AI Assistant on Google Play, with DeepSeek as the developer
• App downloads: download.deepseek.com, which links to both stores

To sign up from South Africa, DeepSeek’s sign-up page says only email registration is supported in your region. You enter your email address, choose a password and type in the code DeepSeek emails you. On the login page you can also sign in with a Google or Apple account.

Lookalike sites and apps are the main risk. In May 2026 Malwarebytes, reporting a fake ChatGPT download site that spread password-stealing malware, warned that each new AI release, DeepSeek included, sends people searching for download links, and that attackers build fake sites to catch them. Protect yourself:

• type chat.deepseek.com yourself, or use the store listings above, instead of clicking search ads
• never install an Android APK file from another website
• DeepSeek’s own app lists no in-app purchases in the South African App Store, so be wary of any look-alike app that charges a subscription
• use a unique password, not the one from your work email

Is DeepSeek AI free?

Yes. The website and app are free to use. DeepSeek’s paid product is its API, which developers use to build DeepSeek into their own software. It is billed per million tokens, where a token is a word, a number or a piece of punctuation:

Rand at R16.32 to the dollar, before VAT. Peak hours are 03:00 to 06:00 and 08:00 to 12:00 South African time on weekdays, excluding Chinese public holidays. For comparison, Claude Haiku 4.5, which Anthropic calls its most cost-efficient model, costs US$1 (about R16) per million input tokens and US$5 (about R82) per million output tokens.

How DeepSeek AI compares with ChatGPT and Claude

The most rigorous public comparison comes from CAISI, the US government’s Center for AI Standards and Innovation at NIST. In May 2026 it published an evaluation of DeepSeek V4 Pro:

• It was the most capable Chinese model CAISI had evaluated, but about eight months behind the best US models.
• On DeepSeek’s own chosen benchmarks, V4 looked about as capable as Anthropic’s Claude Opus 4.6 and OpenAI’s GPT-5.4. On CAISI’s tests, which include benchmarks that are not public, it performed more like GPT-5.
• It was cheaper than the most cost-competitive US model CAISI compared it with, GPT-5.4 mini, on 5 of 7 benchmarks.

An earlier CAISI evaluation, published in September 2025 on older DeepSeek models, raised security concerns. Agents built on DeepSeek’s most secure model were 12 times more likely than US frontier models to follow malicious instructions designed to derail them. With a common jailbreak, that model answered 94% of overtly malicious requests, against 8% for US models.

Keep in mind that CAISI is part of the US government, and that neither evaluation covers the newer V4.1-Flash. For everyday writing and questions DeepSeek is capable; for agents that act on your systems, the security findings matter more than the scores.

Where DeepSeek stores your data

DeepSeek’s privacy policy, last updated on 10 February 2026, is clear about location. It says: “we directly collect, process and store your Personal Data in People’s Republic of China.”

The same policy says DeepSeek collects your prompts, uploaded files, photos and chat history, uses them to train and improve its models, and may share personal data with law enforcement agencies and public authorities where it believes the law requires it. It lists an opt-out from training among the rights that may be available to you, depending on where you live.

Security has slipped before. In January 2025 the security firm Wiz found a DeepSeek database open on the internet, exposing chat histories and secret keys. DeepSeek secured it after Wiz reported it.

DeepSeek and POPIA: the cross-border question

POPIA does not ban AI tools, but section 72 controls sending personal information to another country. A South African business may only transfer personal information to a third party in a foreign country if one of these applies:

• the recipient is bound by a law, binding corporate rules or a binding agreement that gives an adequate level of protection, substantially similar to POPIA’s own conditions
• the person the information is about consents to the transfer
• the transfer is needed to perform a contract with that person, or a contract made in their interest
• the transfer benefits the person, getting their consent is not reasonably practicable, and they would be likely to give it

When a staff member pastes a customer’s details into DeepSeek, that information goes to a company in China. Your business remains responsible for having a lawful basis for that transfer, and whether Chinese law gives an adequate level of protection is a legal judgement, not a box you can tick. Data protection authorities in Italy and Germany have already acted against DeepSeek over how it handles users’ data and sends it to China.

For most businesses, the practical answer is to keep personal information out of DeepSeek entirely. This is general guidance, not legal advice; for a specific transfer, ask a POPIA practitioner. Our guide to AI and POPIA covers the wider duties.

Regulator actions and government bans

These actions were reported by credible sources:

As of 28 September 2026 we could not find any South African government ban or Information Regulator ruling on DeepSeek. That does not make it POPIA-safe: section 72 applies whether or not a regulator has named the app.

What a business should and should not put into DeepSeek

There is a middle route. Because DeepSeek publishes open weights under the MIT licence, a business can run the model on servers it controls, so prompts never go to DeepSeek at all. That takes engineering work; see Zaiq’s AI engineering if you want it done properly.

Related guides

• How to anonymise data before using AI
• Chat GPT free? ChatGPT Free vs Go vs Plus in South Africa
• Claude AI free: what you get in South Africa, and when to pay
• Microsoft Copilot in South Africa: which one, and what it costs