Z.ai

Open, low-cost chat with strong reasoning. Free to use.

DeepSeek's assistant — chat with a reasoning mode and web search, backed by the open-weight DeepSeek models that reset the cost curve for frontier-grade quality.

Moonshot's assistant — long-context chat, deep research, and agents.

Moonshot AI's assistant — long-context chat, Deep Research, and an agent mode (Kimi Code, parallel subagents). Built on the open-weight Kimi K2 model family.

The default AI assistant. Chat, voice, vision, and a tool ecosystem.

OpenAI's consumer assistant — multimodal chat with voice, image input, web browsing, code, and custom GPTs. The product that put generative AI in everyone's hands.