DeepSeek
“We develop and open-source frontier LLMs including DeepSeek-V4, DeepSeek-R1, and DeepSeek-Coder. Chat with DeepSeek AI or integrate via API.”
by DeepSeek
Our review
DeepSeek's free chat runs its own open-weight models, with DeepThink for step-by-step reasoning and Search for web answers. Developers can use the same models through a pay-as-you-go API.
Pros
- Free chat with reasoning mode
- Open-weight models
Cons
- Operated by a company registered in China — read its privacy policy
Also does
CodeLimited
Writes and explains code in chat; the same models power its API.
Limitations
- Code: No editor or repo integration; use a coding tool like Cursor for real projects.
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