DeepSeek

What it does

DeepSeek is an open-source AI model and assistant from a Chinese AI lab that delivered GPT-4-level performance at dramatically lower training cost. It is accessible as a chat assistant and as an open-weight model that developers can self-host. DeepSeek-R1 introduced strong reasoning capabilities comparable to OpenAI's o1, making it a compelling open alternative for technical and analytical tasks.

Strengths

• Mid-market engineering teams evaluate DeepSeek for on-premise deployment or as a cost-efficient alternative to proprietary APIs.
• Enterprises with data sovereignty requirements or cost sensitivity use DeepSeek's open weights for private deployment on their own infrastructure.
• Small businesses and startups use DeepSeek's API for cost-effective AI integration - pricing is significantly below OpenAI and Anthropic.
• Small technical teams self-host DeepSeek models for privacy-sensitive use cases where sending data to US cloud providers is a concern.
• Technically inclined solo users access a high-capability model for free with strong reasoning and coding abilities.

Watch-outs

• Data privacy concerns for sensitive workloads: DeepSeek Chinese origin creates regulatory and reputational risk for enterprises handling sensitive data — many organizations have restricted or banned its use for confidential workloads.
• Limited production testing at scale: DeepSeek models are newer to widespread enterprise deployment — failure modes, reliability characteristics, and edge case behavior are less thoroughly documented than OpenAI or Anthropic models.
• No commercial support or SLA: The open-source models come with no production support, uptime commitments, or incident response — self-hosting teams need to build their own operational reliability.

Pricing

Chat interface free. API available - DeepSeek-V3 at ~$0.27 per 1M input tokens, significantly cheaper than GPT-4o.