What DeepSeek does
DeepSeek is a China-based AI lab focused on developing large language models (including reasoning-focused and agent-oriented models) and distributing them through an online chat app and an API “Open Platform.” The company positions its roadmap as a sequence of increasingly capable model families (e.g., V4, V3.2, R1), and it also publishes technical materials via a transparency center that includes model release dates and linked model cards/technical reports. DeepSeek’s primary product surface is its consumer-facing Web chat and mobile app, while its developer surface is the DeepSeek API (including model routing via model_name) exposed through an Open Platform and documented API endpoints.
From a business-model perspective, DeepSeek appears to monetize primarily through API usage and enterprise/developer access (i.e., paid consumption via its API pricing/docs), while continuing to offer a model ecosystem that includes open weights for selected releases (as described in its model update posts and transparency materials). Its technical differentiation is communicated through architectural and training-method claims tied to specific generations—most recently DeepSeek-V4, which (per the company) targets very long context and agent/tool performance improvements via changes including sparse attention-style mechanisms and a compressed attention approach.
Strategically, DeepSeek moved from “mostly self-funded” to its first clearly reported external fundraising during 2026, backed by multiple strategic/industrial investors—an inflection that likely supports larger-scale training and inference infrastructure as the company shifts toward more agentic workloads (a theme also reflected in its V4 messaging).