Knowbo
3.6Creates a support chatbot trained on an existing website or knowledge base.
Make your tool one of the first five in Chatbots. Sponsored spots from $159/month
Our highest-rated Chatbots AI tools are ChatGPT, Claude, and Perplexity AI. ChatGPT is our top overall pick (4.8/5), and it includes a free plan. Compare these 8 below by price, features and rating to find the right fit.
★ Top pickChatGPTOur highest-rated pick, known for broad, frequently updated GPT model familyVisit ChatGPT
| Tool | Best for | Free | From | Rating | Visit |
|---|---|---|---|---|---|
 ChatGPT | Best overall | Yes | $20/mo | 4.8 | Visit |
 Claude | Best free option | Yes | $17/mo | 4.7 | Visit |
 Perplexity AI | Best value | Yes | $20/mo | 4.6 | Visit |
 DeepSeek | Also worth a look | Yes | Free | 4.5 | Visit |
 Grok | Also worth a look | Yes | $30/mo | 4.5 | Visit |
 Google Gemini | Also worth a look | Yes | $20/mo | 4.4 | Visit |
 Mistral Le Chat | Also worth a look | Yes | $14/mo | 4.4 | Visit |
 Duck.ai | Most popular | Yes | Free | 4.3 | Visit |
Best Chatbots AI tool for each use case
Research & up-to-date answers
Get current, sourced answers rather than relying on stale training data. Perplexity is built for this, citing live web sources for every answer, while Gemini and ChatGPT also browse; look for inline citations you can verify before trusting.
Long documents & analysis
Summarize, compare, and reason over long reports, contracts, or codebases. Claude is known for large context windows and careful long-document handling; look for big file or context limits and strong reasoning when accuracy over long inputs matters.
Coding & technical help
Debug, explain, and generate code conversationally. ChatGPT and Claude both excel at programming, while Gemini integrates with Google's developer tools; look for strong reasoning, code execution, and the ability to handle your whole file or repo in context.
Everyday & emotional support
Chat casually, talk through ideas, or get a supportive sounding board. Pi is designed for warm, conversational support, while general assistants handle brainstorming and advice; choose based on whether you want a tool or a companion-style tone.
How to choose a Chatbots AI tool
What to evaluate
- Web access and citations — because only some assistants give current, verifiable answers
- Context window size — since long documents and codebases need a model that holds it all
- Ecosystem integration — as Gemini ties into Google and ChatGPT into a broad plugin and app network
- Reasoning vs. speed — because the strongest model is slower and pricier than lightweight alternatives
Which one should you pick?
If you need current, sourced factsUse Perplexity, which cites live web sources by default, making answers easy to verify and harder to hallucinate.
If you work with long documents or careful reasoningChoose Claude for its large context window and strong, measured handling of lengthy or nuanced inputs.
If you want one versatile all-rounderPick ChatGPT, whose broad capabilities, plugins, and ecosystem make it the safest general-purpose default.
Best free Chatbots AI tools
These Chatbots tools offer a genuine free plan or trial, a smart place to start before you pay.
How much do Chatbots AI tools cost?
| Price tier | What you get | Examples |
|---|---|---|
| Free | $0, free plan or open-source | Arvin, Lumo, KnowItAll AI Chat, SimSimi, Cleverbot |
| Budget | Under $15/mo | Fyran, ChatWizard, AlterMind, Shmooz AI, Chatmate AI |
| Mid-range | $15 to $39/mo | BotStar, LetsAsk.AI |
| Premium | $40/mo and up | Instabot, Orimon.ai |
Pro tips
- No single chatbot wins everything; keep two open and route queries to each one's strength.
- Always verify cited sources and facts; even browsing chatbots misread pages and fabricate confident details.
- Free tiers often run smaller or older models, so paid plans noticeably improve reasoning quality.
- For sourced research use Perplexity; for long-document reasoning use Claude, rather than forcing one tool.
How we check & rank
We verify every tool in this category is live and write its listing from the vendor’s own material, then score it on value, feature depth and how well it fits the job. Rankings are never for sale, and affiliate links never change a score. Read our full methodology
Browse all tools
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Botnation AI
3.3Proprietary contextual AI – natural language understanding, dynamic response generation, learning from your own data – deploys a multi-channel chatbot in about 5 minutes, no code.
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HotBot AI
3.0One free chat interface for ChatGPT, Claude, Gemini, and more – write, learn, create images, summarize, analyze data, and translate, all in one place.
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ChatOga
3.0Chat with GPT-3.5 or GPT-4 right inside Telegram, Messenger, or WhatsApp – AI-driven efficiency for real tasks, not a companion app, already used by 10K+ people.
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Botonic
3.6Open-source React + TensorFlow.js framework for building conversational apps that blend real ML with graphical interfaces, not just text-in-text-out bots.
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Copilotly
3.4131 separate AI copilots, each tuned to one professional field with its own system prompt and model – the pitch: a generalist AI hedges, a specialist one can name the deadline.
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Kajiwoto
3.2Train your own AI companion's personality and memory over time, chat solo or in multi-party Kaji Rooms – NSFW content banned outright, immediate ban, no warning.
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DatingAI.pro
3.3Screenshot a dating-app conversation and get AI-suggested replies, tone rewrites, and opening-line ideas – a writing coach for messages on Tinder, Bumble, and Hinge.
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Chunky
3.3Train a chatbot on your PDFs, website, or Google Sheets using the ChatGPT API and OpenAI Embeddings, then embed it with one line of code – free forever plan included.
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GlasgowGPT
3.2Chat with an AI that talks like an actual Glaswegian – built on OpenAI's language models with specialized prompting for authentic slang, humor, and local knowledge.
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Kuki AI
3.4An AI virtual influencer that's exchanged over a billion messages with 25 million users – helped H&M's Instagram campaign hit 11x ad recall and 91% lower cost per person.
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Twinning
3.3Record 5-15 minutes of audio and get an AI voice clone your followers can chat with – a creator-economy tool for fan engagement and monetization, covered in trade press on AI in entertainment.
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Imperson
3.6Natural-language conversation engine that handled a free-flowing chatbot conversation with a virtual Einstein for National Geographic's "Genius" series.
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MobileGPT
3.5AI assistant built into WhatsApp, no app download or account needed – send a photo and it reads the label, or hand off an actual task: Smart Agents send the email, book the calendar slot, post to LinkedIn.
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Open Voice OS
3.5Open-source voice assistant framework with a swappable speech-recognition and text-to-speech pipeline – runs offline on anything from a Raspberry Pi to a desktop, free under Apache 2.0.
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Humley
3.5No-code Humley Studio builds and deploys a GPT-powered conversational AI assistant in under an hour, with analytics to keep improving it after launch.
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KnowBuddy.ai
3.1AI without the faff – text it on WhatsApp like a friend, no app download or password. It remembers what matters to you and can reach out first when something's worth knowing.
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The Simulation
3.1Fable Studio's platform for creating AI characters that live, learn and interact on their own inside simulated worlds – access is NFT-gated, with holders joining a whitelist to enter a given town.
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Gupshup
3.8Proprietary ACE LLM powers autonomous sales, marketing, and support agents across 120 billion conversations a year – a Gartner-recognized leader, not a generic chatbot.
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BotDistrikt
3.6250,000+ users, 25 million+ conversations a month – a chatbot platform that lets you scale with AI training while staying in full control with a rule editor, used by F45 Training and Bus Uncle.
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FynixoAI
3.5One $11 subscription across GPT, Claude, Gemini and Grok, with side-by-side compare.
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DetectivesGame
3.4Interrogate AI suspects in cases that do not run on a dialogue tree.
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Publishes its token costs and will let you pay OpenAI directly instead.
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Second Me
3.8Builds an AI version of you from your memories, then lets it talk to other people.
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Helika Evolve
4.0AI characters for sports teams and studios, with a curated mode and a kill switch.
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OpenDialog AI
4.0Enterprise conversational AI agents built for regulated industries
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Peppercorn
3.8Conversational-first insurance platform replacing quote forms with dialogue
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Mirrorfly
4.0Self-hosted chat and calling API with source-code access, now extended to in-app AI agents
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Nova AI App
3.2A mobile AI assistant built on ChatGPT, available across phone, tablet and watch.
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Vacay
3.4A conversational travel advisor for destination, accommodation and itinerary recommendations.
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CustomGPT.ai
4.1No-code platform for training a ChatGPT-style chatbot on a business's own documents, websites, and knowledge base.
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Luzia
4.0AI assistant built into WhatsApp and Telegram for chatting, image generation, and daily tasks without a separate app.
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Chaindesk
3.8No-code platform for training GPT-powered support chatbots on company data, formerly known as Databerry.
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ChatOn
3.8Mobile AI assistant app for chat, writing, document analysis, and voice transcription from AIBY.
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Ninjachat AI
3.6All-in-one AI subscription bundling ChatGPT, Claude, Gemini, and 50-plus writing and media tools into one flat monthly fee.
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Chat Whisperer
3.6No-code AI chatbot builder for small businesses that trains on a website in minutes and replies in 100-plus languages.
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Chatnode
3.7No-code AI agent builder for customer service, trained on a business's own knowledge base across 80-plus languages.
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Chatfuel
4.2No-code chatbot and messaging automation platform for WhatsApp, Instagram, and Facebook Messenger.
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NLX
4.2No-code platform for building conversational AI across chat, voice, and multimodal channels.
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Questie AI
3.6An AI gaming companion that watches your gameplay and reacts in voice chat in real time.
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Dropchat
3.9No-code platform for building AI chatbots trained on a business's own PDFs, websites, and videos.
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Magai
4.0Cloud chat platform that puts 50+ AI models behind one interface with model switching mid-conversation.
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Charisma
4.1Conversational AI toolkit for building emotionally responsive virtual characters in games, training, and film.
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Chat Data
3.9HIPAA-eligible AI chatbot builder combining scripted bots, live chat escalation, and data-query agents.
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DapperGPT
3.7A customizable interface layer that unifies ChatGPT, Claude, Gemini, and other models in one workspace.
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Chatling
3.9No-code AI customer service agent trained on company content, deployable across web, WhatsApp, and Instagram.
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GPTGO
3.7A hybrid search engine that pairs Google results with unlimited free ChatGPT answers.
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AgentX
3.9AgentX lets teams build and publish no-code AI chatbots and multi-agent workflows across web, Slack, and CRM channels.
About Chatbots AI tools
This category spans two related things: general-purpose AI assistants like ChatGPT, Claude, and Gemini that help with writing, research, and analysis, and customer-facing chatbot platforms that businesses deploy to answer support questions, qualify leads, and guide users 24/7. They serve individuals seeking a smart assistant as well as companies that want to automate conversations on their website, app, or help desk, often trained on their own documents.
Pick based on whether you need a personal assistant or a deployable support bot, then compare on:
- Model and reasoning quality, accuracy, context length, and how well it handles complex questions.
- Knowledge grounding, ability to train on your data and cite sources to reduce hallucinations.
- Integrations and channels, website, WhatsApp, Slack, and help-desk connections.
- Privacy and cost, data handling, usage limits, and per-seat or per-message pricing.
Chatbots AI tools — FAQ
What is an AI chatbot?
An AI chatbot is software that understands and responds in natural language using a large language model. It can answer questions, hold conversations, and automate tasks like customer support, examples include ChatGPT, Claude, and Intercom's Fin.
What's the difference between an AI assistant and a customer-support chatbot?
General assistants like ChatGPT help individuals with broad tasks such as writing and research. Support chatbots are deployed by businesses, trained on company data, and focused on answering customer questions and resolving tickets.
Are AI chatbots free to use?
Many assistants offer capable free tiers, with paid plans (around $20 per month) unlocking better models and higher limits. Business chatbot platforms are usually subscription-based, priced per seat, resolution, or message volume.
Can AI chatbots replace human customer support?
They can resolve a large share of routine, repetitive questions instantly and around the clock, reducing workload. Complex, sensitive, or high-stakes issues still need human agents, so most teams use a hybrid approach.
What's the best free AI chatbot?
ChatGPT's free tier is the best all-around free chatbot, offering capable general-purpose help with some access to current models. Claude and Gemini also have strong free tiers, and Perplexity is the best free option for sourced research. The right pick depends on whether you prioritize versatility, reasoning, or citations.
How much do AI chatbots cost?
The major chatbots all offer free tiers, with paid plans clustered around the low-twenties of dollars monthly for faster, smarter models and higher limits. ChatGPT, Claude, Gemini, and Perplexity price their premium tiers similarly. Pay only if you hit free-tier limits or need the most capable models for serious work.
Is ChatGPT Plus worth it?
ChatGPT Plus is worth it for heavy users who want the latest models, higher limits, and features like advanced data analysis and image generation. Light users are well served by the free tier or by free Claude and Gemini. If you use it daily for work, the upgrade pays off quickly.
ChatGPT vs. Claude vs. Gemini: which is best?
It depends on the task: Claude excels at long documents and careful reasoning, ChatGPT is the most versatile all-rounder with the broadest ecosystem, and Gemini integrates best with Google's apps and real-time data. For sourced research, Perplexity beats all three. Most power users keep two open and switch based on the job.