Use DeepSeek AI for free — no login needed. Top-tier coding, math, and chain-of-thought reasoning. Access DeepSeek V3 and R1 — fully open-source.
DeepSeek is an advanced AI model developed by the Chinese AI research company DeepSeek. It has gained widespread recognition for its impressive performance, especially in coding, mathematical reasoning, and chain-of-thought analysis.
As a fully open-source model, DeepSeek represents a significant step in making powerful AI accessible to everyone. Its reasoning capabilities rival much larger proprietary models, making it an efficient and highly capable AI assistant.
V3 for general-purpose power or R1 for chain-of-thought reasoning — open-source AI at its finest.
Yes — DeepSeek AI is free to use on chat-gpt.org. No login or registration needed.
DeepSeek excels at coding, mathematical reasoning, chain-of-thought analysis, and complex analytical tasks.
Yes — DeepSeek is a fully open-source AI model with publicly available weights, making it transparent and community-driven.
DeepSeek is highly competitive, especially in coding and math. ChatGPT is stronger in general conversation and creative tasks.
DeepSeek was developed by the Chinese AI research company DeepSeek.
DeepSeek works best in Chinese and English but supports many other languages as well.
See how the top AI models stack up — detailed side-by-side comparisons across reasoning, coding, speed, and all key capabilities.