DeepSeek
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Pricing: Freemium — Free unlimited chat via chat.deepseek.com. API: V3 at $0.28/1M input tokens, $0.42/1M output. R1 at $0.55/1M input, $2.19/1M output. 10-20x cheaper than OpenAI.
Open-source AI chatbot with powerful reasoning and coding models (DeepSeek-V3, DeepSeek-R1) that rival top competitors at a fraction of the cost. Free unlimited chat with high-quality Chinese and English content generation.
Tags: open-source, reasoning, coding, cost-effective, chinese-ai, chat