Deepseek

DeepSeek is a Chinese AI research lab building and open-sourcing general-purpose large language models, including DeepSeek-V4 and DeepSeek-R1. It serves developers, researchers, and enterprises that need affordable access to frontier-tier models via an OpenAI- and Anthropic-compatible API, a web chat interface, and a desktop application called Harness. Its DeepSeek-V4.1-Flash model combines text reasoning, agent capabilities, and native multimodal visual understanding, distinguishing it from text-only competitors. The platform also provides deep search and agent tool integrations for production workflows.

• Building LLM-powered applications via the API
• Code generation and agentic development workflows
• Multimodal document and image understanding
• Cost-sensitive large-scale inference workloads
• Open-source LLM research, fine-tuning, and self-hosting

• Open-source models including DeepSeek-V4 and DeepSeek-R1
• OpenAI-compatible API endpoint (https://api.deepseek.com)
• Anthropic-compatible API endpoint (https://api.deepseek.com/anthropic)
• Native multimodal visual understanding in V4.1-Flash
• Agent tool integration and agentic task support
• DeepSeek Harness desktop application for macOS and Windows
• Web-based chat interface with deep search and deep thinking modes
• Low-cost 'deepseek-flash' model tier alongside 'deepseek-v4-pro'

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