DeepSeek
The value king enters the V4 era: the V4-Flash official release (Jul 31) and the V4-Pro official release (Aug 12) are both live, with much stronger agent skills.
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Our review
DeepSeek has fully entered the V4 era: the official V4-Flash release went live on July 31, and the official V4-Pro release arrived on August 12 (model version DeepSeek-V4-Pro-0813, 1M context, up to 384K output). V4-Pro supports thinking/non-thinking modes, the Responses API and Anthropic API compatibility, with a big jump in agent benchmarks (Terminal Bench 2.1: 87.9). The legacy model names deepseek-chat and deepseek-reasoner were discontinued in July, so existing apps need to migrate.
DeepSeek has already flagged an upcoming API price increase; even so, with its famously low pricing (V4-Pro ¥3/¥6, V4-Flash ¥1/¥2), it remains the developer value king. The free web and app remain unchanged.
Pros
Cons
Key features
Best for
FAQ
What is DeepSeek?
The value king enters the V4 era: the V4-Flash official release (Jul 31) and the V4-Pro official release (Aug 12) are both live, with much stronger agent skills.
What are the pros and cons of DeepSeek?
Pros: Strong performance, Open-source & deployable, Strong Chinese, Affordable. Cons: Smaller ecosystem than ChatGPT, Some features immature, VPN needed in some regions.
How much does DeepSeek cost?
Free: Free; API: Pay as you go.
Who is DeepSeek for?
Best for Chinese chat, Coding, Academic research, Local deployment.
What are the alternatives to DeepSeek?
Consider ChatGPT, Claude, 通义千问.
Pricing
- • Basic chat
- • Limited usage
- • Full features
- • High concurrency