Top 12 Best Free AI Chatbots for Businesses in 2024

Relia Software

Relia Software

Quang Duc

Relia Software


12 best free AI chatbots include ChatGPT, Google Bard, Microsoft Bing, Microsoft Copilot, Claude, Perplexity, Kommunicate, YouChat, Github, Tabnine, etc.

best free ai chatbot

Table of Contents

Chatbots were among the first AI applications humans used. Recently they have become an increasing phenomenon and starting to be extremely popular with humans. Chatbots have transformed online business-customer interactions. Website-based virtual assistants improve user experience, customer assistance, and business productivity. 

This article will discuss chatbots, how AI chatbots work, and the top best free AI chatbots. Let's find out!

How Do AI Chatbots Work?

The AI chatbots are based on artificial intelligence (AI) algorithms and can understand open-ended questions. They then figure out what the questions mean and do a study on them. 

While this could be a library directly connected to the platform, the AI will usually search the whole internet to find and analyze the best content on the subject. 

After that, the chatbot can use the chosen existing writing to create new content, often by giving links to sources and image ideas, among other things.

>> Read more: How Does No-Code AI Assist In App Development?

12 Best Free AI Chatbots for Different Use Cases


Open AI's ChatGPT is a conversational artificial intelligence chatbot built on GPT-3.5 and GPT-4, which are large language models LLMs. By utilizing natural language processing, it can generate responses similar to those produced by humans. Everything from coming up with new ideas to producing summaries for lengthy publications is something that it may assist you with.

Key Features:

  • Utilises NLP to create replies that resemble human language.

  • Skills for personal development.

  • Comprehension of context.

  • Support for multiple languages.

Google Bard

Google's Bard is a free AI chatbot that makes use of natural language processing and machine learning to provide responses that are both engaging and human-like. 

The LaMDA family of large language models served as the foundation for Bard's initial development; however, it is currently driven by its very own sophisticated LLM PaLM 2. It assists with a variety of text-based tasks, including the creation of summaries, translation, and other tasks.

Key Features:

  • Uses NLP/ML to create content.

  • Bard extension connects to Google apps and tools.

  • Accepts text, audio, pictures, and other inputs.

  • Ideal for customer assistance, sales, marketing, etc.

Google Bard AI chatbot
Google Bard (Source: Internet)

Microsoft Bing

Bing AI provides a fresh search approach that is both more user-friendly and informative. It does this by combining the capabilities of Bing search and OpenAI. 

When you provide a question or prompt, Bing AI will generate a response regarding the topic, which will include the links that it discovered to use as a foundation for the response. Because of this, it is a very flexible system because it may also include graphics.

Key Features:

  • Bing Chat.

  • Bing Image Creator powered by DALL-E is incorporated into Bing Chat and accessible via the Microsoft Edge sidebar icon.

  • Bing Compose enhances AI text generation by writing in several tones and forms to produce a copy.

  • AI-generated Knowledge Cards 2.0 on the search results page.

  • Bing Stories generated by AI.

  • The Bing Chat window of the Microsoft Edge sidebar lets you maximize your online time with Bing Insights.

Microsoft Copilot

Last February, Microsoft introduced Copilot, an AI-improved Bing that relies on OpenAI's latest language model system, GPT-4. Copilot went from a limited preview to an open preview on May 4, making it free for everyone.  

It solved two significant ChatGPT issues: access to current events and linking back to its sources. ChatGPT's Browse with Bing plug-in mimics Copilot. Copilot is free and easy to use, featuring multi-modal inputs, chatbot image generation, and free GPT-4 access. 

Key Features:

  • The most advanced OpenAI LLM, GPT-4.

  • Accesses the internet and functions as a search engine for current happenings. 


Claude, Anthropic's first AI assistant, became a top chatbot less than a year after its February 2023 introduction. The favorite feature of this chatbot is its ability to read, analyze, and summarise uploaded files. Simply click the paper clip icon next to the text area and select the document you want support with. You can then ask for document summaries or clarifications in chat. 

Since Claude is in free open beta, its context window and daily message limits can vary based on demand. If you use the chatbot frequently, upgrading to Claude Pro for $20 a month offers at least five times the usage limits. 

Key Features:

  • Operated by Claude 2.

  • Allows for the submission of documents.

  • Received training with data up to early 2023.


Perplexity AI, a free AI chatbot with sources and a great user interface (UI), is an excellent chatbot for exploring new topics and promoting experimentation due to its many prompts. 

After visiting the site, using the chatbot is easy. Start by typing your prompt into the "Ask anything" box. The chatbot's title, "Where Knowledge Begins," is perfect for the text box. 

Clicking on the textbox brings up a succession of news-related queries. It also includes prompts on timeless topics underneath the box. Simply click on any suggestion to learn more and discuss it. 

Another benefit is that there is an Android and iOS app so you can play with the chatbot on the go, footnotes with references, and most replies contain photographs and graphics. 

Key Features:

  • Access to OpenAI GPT-3.5 and GPT-4 is available for subscribers. 

  • Can browse the internet and stay updated on current events.

  • Offers immediate recommendations to initiate conversations.

perplexity ai chatbot
Perplexity (Source: Internet)


The Kommunicate chatbot is one of the best AI-powered ones that can help you automate chats, make the user experience better, and grow your business. It gives better customer service by combining the best of Generative AI and human touch.

The platform helps developers make the best AI robots that can answer customer questions on websites, messenger apps, and other channels.

It uses its strong AI and NLP skills to answer some questions and sends the ones it can't answer to a human agent.

Key Features:

  • Multiple integrations simplify work.

  • Powerful analytics and reporting.

  • Create and customize your own ‘Help Center.’

  • The AI chatbot can be customized extensively.


YouChat is a search engine-like AI helper. Like Google, you may enter any question or topic to get real-time web results and a conversational response.  

For instance, "Can you share some pictures of adorable dog breeds?" The chatbot will deliver six site links, seven web images, a conversational answer, and related news. 

Technical support is available from the chatbot for math, coding, translating, and writing challenges. This chatbot's low popularity allows you to join at any time and ask questions.  

Key Features:

  • GPT-4 subscription.

  • Provides references for the material it produces.

  • This Chatbot utilizes Google sources.

GitHub Copilot

Technically, GitHub Copilot interacts with your IDE and acts as an autocomplete, so it feels like you're coding with an AI model. As you type a comment or function, Copilot will recommend the optimal code to achieve your goal. 

Copilot uses security vulnerability filtering to avoid creating more issues than it addresses when using generated code. You must audit the code, especially since some ideas are inefficient. 

Key Features:

  • Autocomplete Code.

  • Multiple programming languages are supported such as Python, JavaScript, Ruby, and C++.

  • Context understanding.

  • Coding documentation.

  • The ideas follow coding standards to aid project teams.

Amazon CodeWhisperer

​​Amazon offers CodeWhisperer, a machine-learning solution for developer efficiency. Amazon uses a proprietary AI model based on open-source code and AWS consumption statistics. It then learns your coding habits from your project data to make more personalized suggestions.

Since it's created for AWS, it'll help you follow EC2, Lambda, and S3 code best practices. Moreover, it only supports C#, Java, JavaScript, Python, and TypeScript, unlike Copilot. It supports all Amazon-based IDEs, JetBrains, and Visual Studio Code.

Key Features:

  • Personalized code ideas in real-time.

  • Popular programming languages and IDEs supported.

  • Command-line support.

  • Optimized for AWS.

  • Automatic security scanning and AI-powered code cleanup.

  • Do code responsibly, open source IDEs code reference tracker.

  • Do code responsibly, avoiding bias.

  • Business management.

amazon codewhisperer ai chatbot
Amazon CodeWhisperer (Source: Internet)


Tabnine feels business- and team-oriented. Copyleft code is kept outside when training its AI models on open-source code. As long as the generated code is copyleft, copyleft code can be used and shared. As a corporation, you don't want to risk infringement, thus it's good to know that Tabnine's models never create code under this license.

The AI models can be customized to your codebase, integrating standard coding principles with company-specific ones. With SaaS and on-premise deployment choices, your data is protected by many features. Finally, Tabnine Chat beta can answer all your technical inquiries using your data and best coding standards.

These features shine, especially for larger companies. The limited free plan that only completes two-to-three-word codes maybe because this is pricey.

Key Features:

  • Intelligent code completion by using advanced machine learning algorithms to complete code based on context.

  • Multiple language support and making suggestions based on your coding language.

  • Tabnine gives real-time code completion recommendations as you type, helping you write code faster and more accurately.

  • Tabnine uses patterns in current codebases to make intelligent suggestions for your coding style.

  • Tabnine enhances coding in your preferred development environment.


Codeium is another choice that has good reviews online and a free plan that's good for one person. It does a bit more than just finish your code. It has a robot you can use to get help with projects, ask for code explanations, and get ideas for how to make things better. 

It supports more than 70 computer languages and works with more than 40 integrated development environments (IDEs).

Key Features:

  • Accept autocomplete suggestions for boilerplate code, function names, arguments, etc. to save time.

  • Increase consistency with community patterns.

  • Use and name functions correctly to avoid trivial bugs.

  • Avoid regex and quickly find relevant code by explaining it in plain English.

  • Create code, explanations, and corrections through chat.

>> Read more: 

benefits drawbacks of ai chatbot
Benefits and Drawbacks of AI Chatbots (Source: Internet)

Benefits and Drawbacks of AI Chatbots


Let's look at 5 typical benefits of using AI chatbots for AI and machine learning developers:

Being Available 24 hours/Day

Some of your customers may be in different time zones or even be night owls. Don't worry—AI robots are available 24 hours a day, seven days a week, to help you. They never take a break!


AI chatbots provide constant, high-quality customer service at a very low cost, so you don't have to pay for staff. Also, they might be free!

Less Time Respond

When customers want answers right away, like in the digital age, robots save the day. They can interact with multiple people at once, which cuts down on wait times and improves the experience for all of them.

Always Learning and Getting Better

Not only are  AI chatbots smart, but they can also learn quickly. They only get better with time and use because every encounter makes them smarter.

Able to Grow

When you grow your business, you get to deal with more customers. This is where an AI chatbot shines! They can easily handle more contacts with customers, which lets your business grow without having to pay a lot more.

A computer program that works around the clock, handles many customer questions at once, learns from each contact, and does everything without making mistakes, all while keeping costs low.


Incorrect Complicated Query Processing

AI chatbots are good at answering simple inquiries, but complicated or multi-part questions can challenge AI natural language processing. We can expect this gap to narrow as AI and chatbot machine learning develop. Businesses should have human customer service backup for complicated issues.

Misinterpreting Human Language Subtleties

Every human speech has subtleties, idioms, and local slang. AI chatbots have improved at comprehending language nuances, but they still struggle with idioms and colloquialisms. They may have trouble recognizing irony or double-meaning utterances. To avoid misinterpretation, the chatbot must be well-programmed to identify these distinctions.

Internet Dependence

AI chatbots need internet access to answer user questions. This implies a bad or interrupted connection could slow chatbot responses or impair service. Businesses must determine if their users have stable internet service to run AI chatbots.

Data Limitations  

Training Large Language Models and embedding data to tailor chatbots makes them as brilliant as they are. AI chatbots learn and react to interactions, but their powers are still limited by their data. Due to the importance of comprehensive coding and regular updates, bot efficiency and performance may be affected if some setup areas are overlooked.

Maintenance and Updates

Using intelligent chatbot software requires maintenance and updates. The chatbot needs regular software updates to improve its capabilities and security. Though not a disadvantage, updating requires time and resources from businesses.

>> Read more:


Overall, the 2024 AI Chatbot revolution will revolutionize customer service and content development, propelling enterprises to massive growth. Adding a chatbot to your website may engage users, improve their experience, and boost conversions without breaking the bank.

Relia Software, one of the agencies that offer AI and machine learning developers in Vietnam, has a lot of developers with much experience in developing chatbots for businesses. Do not miss to work with our dedicated team!

>>> Follow and Contact Relia Software for more information!

  • development