Developer Tools

DeepSeek

FREE

深度求索（DeepSeek），探索未至之境。专注于研究世界领先的通用人工智能底层模型与技术，开源 DeepSeek-V4、DeepSeek-R1 等前沿大模型。和 DeepSeek AI 对话，轻松接入 API。

4.8(462 reviews) 0 views Updated 9/7/2026

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Overview

DeepSeek is a Chinese AI company focused on AGI research, founded by High-Flyer. They have released open-source LLMs including DeepSeek-V3 and DeepSeek-R1, which excel in code generation, math reasoning, and long-context understanding, rivaling GPT-4o and Claude 3.5. Completely free to use with top-tier performance.

Key Features

探索未至之境

Pros

API costs a fraction of OpenAI — we cut our bill 90%R1's reasoning on math problems genuinely impressed meOpen weights mean no vendor lock-in

Cons

English writing quality lags behind Claude/GPT on creative tasksSome features still maturing vs OpenAI ecosystem

Pricing

DeepSeek is completely free: Web version fully free with no usage limits; Mobile app fully free; API calls: DeepSeek-V3 priced at ~0.14 CNY per million input tokens, far lower than GPT-4o; Open-source models: Free to download and deploy locally with no licensing fees.

Conclusion

DeepSeek is the most cost-effective AI large language model globally, completely free with top-tier performance, especially suitable for programmers, researchers and users who need heavy AI usage. Its open-source strategy also makes it the best choice for privacy-conscious users and enterprises requiring private deployment.