DeepSeek is free; ChatGPT starts at $20/mo. ChatGPT is rated higher at 4.7/5 vs DeepSeek's 4.5/5.
Open-source AI model from China rivaling GPT-4 at a fraction of the cost — shook the AI world in 2025.
AI chatbot by OpenAI — the most widely used AI assistant for writing, coding, and analysis.
Independent analysis based on features, pricing, and user ratings
DeepSeek uniquely offers Open source, Chain-of-thought reasoning, Code generation. ChatGPT uniquely offers AI text generation, Code assistance, Image generation. Both share 1 features including API access.
DeepSeek is free; ChatGPT starts at $20/mo.
Free tier available