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DeepSeek Chat, The Jouster's Review

Review of DeepSeek Chat. Web interface for DeepSeek R1 and V3 models, free and powerful. Pricing, limits, alternatives.

J
The Jouster
Tests AI tools for real, from Paris
Updated
4 min read
Tool fact sheet
DeepSeek Chatchat.deepseek.com0Le Jouteurprofil
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DeepSeek Chat
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0/ 10
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Obsolescence risk0/10 · Risky
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DeepSeek Chat in brief

DeepSeek Chat gives free access to exceptional reasoning models. Performance on code and math tasks rivals GPT-4o for zero euros.

  • PriceFree
  • CategoryChat & modèles
  • RecommendedYes

The essentials in 20 seconds

  • Free chat interface for DeepSeek R1 (reasoning) and V3 (general) models
  • Performance on code and math comparable to the best OpenAI models
  • Open source models under MIT license, freely usable
  • Price: free for the web interface, pay-per-token API

Verdict: DeepSeek Chat is the best free alternative for reasoning and code. Some caveats on data privacy (servers in China) for professional use.

What is DeepSeek Chat?

DeepSeek Chat is the web interface for DeepSeek R1 and DeepSeek V3 models, developed by DeepSeek, a Chinese startup. DeepSeek R1 is a reasoning model (visible chain-of-thought) that rivals OpenAI's o1 on math and code benchmarks.

The big surprise: the models are open source and the interface is free. An unbeatable price-to-performance ratio.

Strengths

Exceptional reasoning performance

DeepSeek R1 shows its thinking steps, like OpenAI's o1. On code, math and logic tasks, performance is on par with paid frontier models.

Free interface

Chat.deepseek.com gives access to the models without a subscription. For personal use and experimentation, it's unbeatable.

Open source models

DeepSeek V3 and R1 are available under the MIT license. You can self-host them or use them via platforms like Groq, Together AI or Fireworks.

Limits

Servers in China

Data sent to chat.deepseek.com passes through servers in China. For sensitive information or regulated professional contexts, this is a legitimate concern.

Sometimes limited access

The free interface can be slowed down or limited during high-demand periods. The paid API is more reliable.

Pricing

  • Web interface: free
  • API: per-token billing (among the cheapest on the market)

Alternatives

  • Claude for an assistant more oriented toward nuance and writing
  • ChatGPT for the OpenAI ecosystem and plugins
  • Groq to access DeepSeek models with maximum inference speed

Verdict

DeepSeek Chat is essential for anyone doing code, math or logic who wants a free, high-performance alternative. The data privacy caveat should guide the choice if your context.

FAQ

Is DeepSeek R1 really as good as o1?

On certain academic benchmarks, yes. In practice, both excel at reasoning. o1 may have better understanding of natural language nuances.

Can DeepSeek be used with confidential data?

Not recommended with the official interface. Use a self-hosted deployment or via a European provider.

Does DeepSeek have an artifact mode like Claude?

Not natively in the standard web interface.


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The Jouster's verdict

DeepSeek Chat : 0/10.

DeepSeek Chat gives free access to exceptional reasoning models. Performance on code and math tasks rivals GPT-4o for zero euros..

Test DeepSeek Chat yourself

A free trial is available. Plan thirty minutes to form your own opinion.

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