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DeepSeek

Open-weight reasoning models

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What DeepSeek is

DeepSeek is a Chinese AI lab producing open-weight language models. DeepSeek-R1 (reasoning) and DeepSeek-V3 offer strong performance in math, code and general tasks at low cost, accessible via web chat, mobile apps and API, with weights available for self-hosting.

What you can do with it

  • Use the chat apps for free
  • Integrate models via API
  • Self-host open weights
  • Run reasoning-heavy workloads cheaply

Who it is for

  • Developers and technical teams
  • Cost-sensitive deployments
  • Open-source AI practitioners

What to watch out for

  • China-based service raises data residency considerations for regulated use
  • Open weights still carry licence terms; read them
  • Chat output quality varies by task; verify facts
  • Geopolitical and app-store availability can shift

Pros & cons

✓ What we like

  • Open weights enable self-hosting
  • Strong price-performance
  • Reasoning capability

! What to watch out for

  • Data residency considerations
  • Licence terms on weights
  • Availability volatility

FAQ

What is DeepSeek known for?

High-performance open-weight models (R1, V3) at low cost.

Can I self-host?

Yes. The open-weight strategy supports local deployment.

Who suits it?

Technical teams valuing performance, cost and deployment flexibility.

Last reviewed: 2026-09-13

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