# DeepSeek

> AI chat platform and developer API powered by reasoning models

Source: https://dailyaitools.ai/tools/deepseek/ (dailyaitools, a tracker of AI tools; no ratings or reviews)

## Key facts

- Category: Agents
- Price: Free plan available
- Free plan: Yes
- Works on: Web, API
- Website: https://www.deepseek.com
- Verification: Checked against the vendor's pages on October 19, 2026.

## What it is

Developed by Hangzhou DeepSeek Artificial Intelligence Basic Technology Research Co., Ltd., DeepSeek offers conversational AI models alongside developer tools. The service features specialized model series including DeepSeek-R1, DeepSeek-V3, and DeepSeek Coder. Conversational chat is available for web and mobile users, while developers can utilize the open API platform.

## Features

- Free web and mobile chat interface
- Developer API platform for model integration
- Reasoning and agent capability support
- Access to research models including DeepSeek-R1 and DeepSeek-V3

## Good fit for

- Interacting with AI chat models via web or app
- Integrating DeepSeek reasoning models via API
- Accessing AI research models such as DeepSeek-R1 and DeepSeek-V3

## Questions

### What model versions are available on DeepSeek?

DeepSeek features multiple model families including DeepSeek-V4 preview, DeepSeek-V3, DeepSeek-R1, DeepSeek Coder V2, DeepSeek VL, and DeepSeek Math.

### How can developers access DeepSeek models?

Developers can access models through the official DeepSeek open API platform and documentation.

### What interfaces does DeepSeek offer for chat?

DeepSeek offers chat functionality through a web-based chat interface and mobile applications.

## Sources

- https://www.deepseek.com

Listed July 27, 2026.