DeepSeek
Open-weight models at a fraction of the cost
- No reviews yetCategory: AI Tools & APIsUpdated May 2026
DeepSeek builds high-performing open-weight models — the V3 series for general chat and coding and the R1 reasoning line — released under permissive licenses and offered through an unusually cheap API. There is also a free consumer chat app.
Highlights
- Extremely low API pricing for the quality
- Open weights you can self-host
- Strong coding and reasoning performance
- Free consumer chat app
DeepSeek is the value play: if you are sending high volumes of LLM traffic and cost dominates, its API is dramatically cheaper than the incumbents, and open weights let you self-host. The trade-offs are ecosystem maturity and data- governance questions that matter to some organisations. For the cheapest credible API it is a first call; for a polished product experience, look to ChatGPT, Claude, or Gemini.
When to use it
- cost_sensitive_api_builders
- self_hosting_teams
- high_volume_chat
Avoid if
- have_strict_data_residency_requirements
- want_a_polished_consumer_product
Free
Free web chat; API pricing is among the lowest available, with off-peak discounts. Weights are openly published for self-hosting.
- Free tierNative
- API accessNative
- SDKsIntegration
- Open sourceNative
- AI assistanceNative
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