Best AI Tools to Build a Chatbot
AI chatbot platforms and conversational-assistant builders.
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: an interface to a multimodal model for text, audio and images, with paid Google AI plans for higher limits.
AI lab whose models are available in a chat app and through a pay-per-token API compatible with OpenAI and Anthropic request formats.
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.
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.
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.
Mistral AI's conversational assistant with chat, code interpreter, document upload, and image generation, with a strong EU privacy focus.
AI meeting assistant that records, transcribes and summarizes meetings across Zoom, Google Meet and Microsoft Teams, with a public GraphQL API.
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.
The completely free call captioning app making it easy to communicate with anyone, anywhere. FCC certified, 100% private.
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Based on real user ratings and reviews, ChatGPT currently ranks #1 for this.
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