Best ChatGPT & AI Chatbot Tools

AI chatbot from OpenAI for writing, coding, research, and everyday questions, with free and paid tiers.

AI assistant from Anthropic focused on writing, coding, research, and analysis, positioned as "the AI for problem solvers."

Google's AI assistant with large context windows, deep Search/Workspace integration, and multimodal (text, image, audio, video) understanding.

Chinese AI lab's free chat assistant and open-weight model family (V3, R1), known for frontier-level performance at a fraction of typical API cost.

Z.ai / Zhipu AI's latest GLM-5.2 model. Features 1M context window and dual thinking-effort system (High/Max). Optimized for agentic coding and repository-scale analysis.

Moonshot AI's latest Kimi K2.7-Code and K2.6 models. Features a 1 trillion parameter MoE architecture. Specialized for long-horizon software engineering and agent swarms.

Alibaba's AI chat assistant and model family, accessible via web and mobile app, offering multiple model tiers.

Bytedance's AI chatbot. Intuitive interface and good general capabilities.

Microsoft's AI assistant embedded across Windows, Word, Excel, PowerPoint, Outlook, and Teams, with free consumer access and paid Copilot Pro/Microsoft 365 Copilot tiers.

xAI chatbot with real-time X/Twitter data access.

Meta's free AI assistant integrated across WhatsApp, Instagram, Facebook, and Messenger, with real-time web knowledge and image generation.

Consumer platform for chatting with millions of user-created AI characters — fictional personas, companions, and custom bots — for roleplay and entertainment.

Inflection AI personal companion for emotional support and conversation.

Mistral AI's conversational assistant with chat, code interpreter, document upload, and image generation, with a strong EU privacy focus.

AI meeting assistant that transcribes, summarizes, and analyzes conversations, with integrations across 200+ business tools.

Fathom summarizes your meetings so you can focus on the conversation. Available bot-free, it captures notes and improves productivity with instant AI-generated summaries.

AI tool that condenses academic research papers into concise visual summaries and mind maps.

AI tool that generates a structured visual summary of any book from just its title and author.

The completely free call captioning app making it easy to communicate with anyone, anywhere. FCC certified, 100% private.

The official repo for “Dolphin: Document Image Parsing via Heterogeneous Anchor Prompting”, ACL, 2025.