CHT-06100% Free
DeepSeek
Free chat assistant with a strong reasoning mode, good at math, logic and programming problems.
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What is DeepSeek?
DeepSeek is a free assistant from a Chinese AI lab that became popular for its reasoning model. When you turn on the thinking mode it works through a problem step by step before answering, which helps with math, logic puzzles and programming bugs.
Used for
Free chat assistant with a strong reasoning mode, good at math, logic and programming problems.
Best for
Math, logic and code questions
Price
DeepSeek is free to use for normal needs.
How to start for free
- Go to chat.deepseek.com and sign up.
- Turn on the reasoning or DeepThink option for hard problems.
- Paste code or a math problem and ask for a step-by-step solution.
Strengths
- Free reasoning model with visible thinking steps
- Strong at math and code
Limits to know
- Servers can be busy at peak times
- Data is processed under Chinese regulations, so avoid sensitive information
Learn more
Free plans and limits change often. Check the current details on the official DeepSeek website before relying on it for important work. Last reviewed October 2026.