Best AI Chatbots & Assistants Tools (2026)
21 hand-picked chatbots & assistants tools, compared on price and features — 20 with a free tier. Each listing covers pricing, key features, pros and cons, and the best alternatives.
Whether you want a free option to start or a paid plan with more power, this list helps you choose. 20 of these chatbots & assistants tools offer a free tier (ChatGPT, Claude, Gemini, DeepSeek, Microsoft Copilot, Character.AI, Pi, Monica, Sider, Jan, Mistral AI, Together.ai, DeepSeek, Microsoft Copilot, DeepSeek, Grok, HuggingChat, Mistral (Le Chat), Poe, Comet…).
ChatGPT
The most widely used AI chatbot for writing, coding and research.
Claude
AI assistant known for long-context writing, analysis and coding.
Gemini
Google's AI assistant, deeply integrated with Workspace and Search.
DeepSeek
Free, open-weight chatbot with strong reasoning and coding.
Microsoft Copilot
AI assistant built into Windows, Edge and Microsoft 365.
Character.AI
Chat with millions of user-made AI characters.
Pi
A supportive, conversational AI for everyday chat.
Monica
All-in-one AI assistant in your browser across models.
Sider
AI sidebar assistant for any webpage and PDF.
Jan
Open-source, offline ChatGPT alternative that runs locally.
Mistral AI
Cost-effective open-source AI models via API.
Together.ai
Unified API for accessing open-source and proprietary LLMs.
DeepSeek
Efficient open-source reasoning model via API.
Microsoft Copilot
Microsoft's AI assistant built into Windows, Edge and Microsoft 365.
DeepSeek
Open, low-cost AI assistant strong at reasoning and coding.
Grok
xAI's assistant with real-time access to X (Twitter) data.
HuggingChat
Free open-source AI chat with multiple community models.
Mistral (Le Chat)
European open-weight AI assistant, fast and privacy-minded.
Poe
One app to chat with many AI models (GPT, Claude, Gemini…).
Comet
AI-native browser that completes tasks for you
Abacus ChatLLM
Multi-model AI super-assistant with agents
Guides on chatbots & assistants
ChatGPT vs Claude vs Gemini: which AI assistant should you use?
The three leading AI assistants compared on writing, coding, research and ecosystem — and who each one is best for.
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The best AI tools in 2026 (the ones people actually use)
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ChatGPT Plus vs Claude Pro vs Gemini Advanced: Which $20/mo AI Is Worth It in 2026?
A practical, use-case-driven comparison of the three leading $20/month AI subscriptions in 2026, covering models, context windows, ecosystem fit, and who each one is genuinely best for.
ChatGPT Alternatives That Are Genuinely Free (2026)
The ChatGPT alternatives with genuinely useful free tiers in 2026, what each one's real limits are, and why 'unlimited free' sites are usually too good to be true.
RAG vs Fine-Tuning vs Prompting: How to Customize AI for Your Business
Prompting solves most customization needs cheapest, RAG grounds models in your changing knowledge, and fine-tuning shapes stable behavior for narrow tasks. The 2026 best practice is to layer them in order: prompt, then RAG, then fine-tune only when needed.
Best AI Tools for Customer Support Teams (2026)
How support teams use AI agents and copilots to resolve tier-1 tickets automatically, draft agent replies, and surface knowledge — with realistic resolution rates and deployment advice.
AI Chatbots & Assistants FAQ
What is the best chatbots & assistants tool?
It depends on your needs and budget. This page compares all 21 chatbots & assistants tools side by side on price, features and free tiers so you can pick the best fit.
Are there free chatbots & assistants tools?
Yes — 20 of the 21 chatbots & assistants tools listed here have a free tier.
What is the cheapest chatbots & assistants tool?
Pi is among the most affordable, starting from Free. Compare all options above.
How we rate: ToolGlance scores combine pricing, core features, user-review signals and update frequency, compiled from public sources and vendor documentation — see our methodology. Figures are indicative and change often; always verify pricing and features on the vendor site before buying. Last updated 2026-07-13. Compiled by the ToolGlance editorial team.