CHT·05 · Chat & Assistants

DeepSeek

Open-weight model family with a free web chat, popular for maths, reasoning and coding tasks.

PricingFree

CategoryChat & Assistants

Last checkedNov 2026

What is DeepSeek?

DeepSeek is a family of AI models with a free web chat that became popular for strong reasoning, maths and coding performance. Some of its models are released with open weights, which means developers can download and run them on their own hardware.

For individuals it is an easy way to get capable answers at no cost. Teams should check where data is processed before using it for sensitive work, since data-residency rules matter for some companies. It has fewer integrations and extras than the bigger assistant apps.

Key features

Free chatUse the web chat without a subscription.

Reasoning modeGet step-by-step answers for maths, logic and planning problems.

CodingWrite and debug code across common languages.

Open weightsDevelopers can self-host some models for full control.

How to get started

Open chat.deepseek.com and sign in.
Try a maths or coding problem to see the reasoning mode.
Review its privacy terms before pasting work or customer data.

Our take

A strong free option for reasoning and code. Check data policies before using it for confidential work.

Best for

Developers
Budget-conscious users

Strengths

Free to use
Open weights available

Limits

Fewer integrations
Data-residency concerns for some teams

Visit DeepSeek ↗

Questions

Is DeepSeek free?

Yes. DeepSeek is free to use.

What is DeepSeek best for?

DeepSeek is best for: Developers and Budget-conscious users.

What are the best alternatives to DeepSeek?

Popular alternatives in Chat & Assistants include Qwen Chat, Kimi, ChatGPT, Claude, and Gemini.

Pricing and features change often. Confirm details on the official DeepSeek website.