What DeepSeek does
DeepSeek is a Chinese frontier AI lab developing open-weight “reasoning-first” language models and an accompanying set of consumer and developer products (web/app chat, API access, and agent-oriented tooling). The company’s recent release cycle emphasizes longer-context inference and agent/tool-use capability across its model families—moving from DeepSeek-R1 (released January 2025) toward later V3.x reasoning/agent upgrades and, most recently, DeepSeek-V4 with support for “million-token” context and multiple V4 variants delivered via web and API. DeepSeek positions itself as an open-model provider: it publishes technical reports and releases weights under permissive terms for multiple models (for example, DeepSeek-R1 is described by the company as fully open-source and MIT-licensed), while still operating commercial API services with token-based pricing.
DeepSeek’s business model appears to be primarily API and developer-platform monetization (pricing is published on its API docs) plus free/low-friction access through its web and mobile offerings to drive usage and adoption. For enterprises and developers, the company supports API integrations (including “OpenAI ChatCompletions & Anthropic APIs” compatibility language in its V4 preview announcement) and provides higher-level “agentic” interfaces such as DeepSeek Harness. Strategically, as of 2026, DeepSeek is transitioning from “no outside funding” positioning to a first major external funding round reported by Reuters and others, while continuing to ship fast on the open-weight frontier.