AI Chat Assistant

GLM-5 智谱

Zhipu Open Source’s new generation flagship AI model, with 744B parameters, is comparable to Opus 4.5

character.AI c.ai

Character.AI is the world's largest role-playing chat platform, allowing users to freely talk to "characters" created by AI, generate stories and interact with voice.

GPT-4.5 OpenAI

OpenAI research preview version of large-scale chat model, better understanding of human speech

Step AI 阶跃AI

Multi-modal AI chat assistant launched by Step Star, covering knowledge, writing and programming

Chegg Chegg

A long-established online learning platform that integrates AI Q&A and expert coaching services

Claude Opus 4.1 Anthropic

A high-intensity inference model for real coding and Agent tasks, more suitable for multi-step project execution and detail tracking than Opus 4

HuggingChat HuggingChat

The open source AI chat interface launched by Hugging Face, experience the cutting-edge open source model

Inflection Pi Inflection

A personal AI assistant that emphasizes emotional intelligence and provides a companion conversation experience