10 Best AI Chatbots in 2025

With innovation in technology, chatbots are getting smarter every day, offering you instant assistance in real time. Whether you need virtual aid, brainstorm ideas, or have a casual conversion, the best AI chatbot is there for you. However, if you are hunting for one that features language models and innovative algorithms, this guide has got you covered. Here, we will discuss the 10 best AI chatbots with detailed features, pros, and cons.

How Do AI Chatbots Work?

Before you look for the best AI chatbot apps, knowing how they work is crucial for choosing one that suits your needs. So, head to the below details and learn about the functionality of chatbots for your acquaintance:

• Understanding Text: Once the prompt is given, the chatbot utilizes natural language processing to process the human language. While doing so, they break down the information into understandable components to analyze the grammar, context, and user intent.
• Machine Learning & Training Data: Furthermore, as they determine the context, they use extensive datasets that compromise books, articles, and conversions. By going through this data, they use machine learning algorithms to recognize the pattern in language usage. Hence, this aids them in improving their response, offering context-related solutions, and handling a wide range of queries effectively.
• Generating Responses: After they have gathered the information through datasets, they use LLMs like Generative Pre-Trained Transformer to generate human-like texts. These models predict a suitable response that not only matches the situation but considers the user’s emotions to facilitate coherent and contextually relevant interactions.
• Memory & Context Awareness: Additionally, most of the best artificial intelligence chatbots keep the memory of previous interactions to offer relevant responses. Through this, users won’t just have to start the interaction again, but it will assist in managing follow-up questions.
• APIs & Backend Integration: Plus, for better user experience, chatbots also integrate with databases and external systems through APIs. With this, they can perform various tasks, such as retrieving real-time information and processing transactions.
• Continuous Learning & Updates: To ensure you get accurate responses, AI chatbots go through continuous updates and retain new data to upscale their performance. Besides that, they adapt new language patterns, add new information, and enhance relevance and accuracy.

Top 10 Best AI Chatbots of 2025

Since there are a lot of chatbot options out there, have you ever wondered, “What is the best AI chatbot?” If so, we have rounded up 10 ideal chatbot options, offering you instant and accurate responses immediately. By reviewing these details, you will not just find your answers but pick ideal chatbots that suit your preferences.

1. ChatGPT by OpenAI
2. Grok by xAI
3. Gemini 2.0 by Google
4. Claude by Anthropic
5. Qwen by Alibaba
6. Ernie Bot by Baidu
7. Microsoft Copilot
8. DeepSeek
9. Llama by Meta
10. Perplexity AI

1. ChatGPT by OpenAI

Starting with the renowned one, ChatGPT is the AI chatbot desktop and for mobile phones that is trained with innovative models. Created by OpenAI on November 30, 2022, it has GPT-3.5 as its initial model, offering significant improvements in natural language understanding and generation. Hence, with the innovation, it now features various models like GPT-4, GPT-4 Turbo, GPT-4o, and GPT-4o Mini.

Pros

• With its GPT-4 model, users can benefit from its improved reasoning, creativity, and understanding of complex queries.
• Moreover, ChatGPT allows you to access 30 days of previous interactions that you can easily review.

Cons

• This chatbot lacks long-term memory, meaning that it won’t store its previous interactions with users.
• Additionally, it usually offers outdated information since it doesn’t have updated data after June 2024.

Pricing Plans

• Plus: $20/month
• Pro: $200/month
• Team: $30/month per user

2. Grok by xAI

xAI, owned by Elon Musk, developed Grok in 2023, which has the ability to generate accurate text and engage in conversations. When the user gives a prompt, it extracts data from X and offers responses in two modes, including Fun and Regular modes. By default, it uses Fun mode and creates numerous answers that are mostly wrong. However, users can access the Regular mode to get accurate suggestions.

Pros

• It has a large language model, Grok-1, that is trained with a custom tech stack having system management systems like Kubernetes, machine learning framework JAX, etc.
• In addition, its LLMs are trained on extensive datasets that have knowledge from Wikipedia articles and scientific papers.

Cons

• Though it is among the best AI chatbots, it still offers politically incorrect information than ChatGPT.
• Besides that, Grok can’t rapidly process images, unlike other chatbots, affecting the experience for users who seek immediate responses.

Pricing Plans

• Not released yet.

3. Gemini 2.0 by Google

Having improved and native capabilities, Gemini 2.0 is better in performance as compared to its 1.5 Pro version. Hence, released on December 11, 2024, it supports multimodal inputs like images, video, and audio for better user experience. It also lets users access native tools like Google Search, run code, and access custom tools. Having a text-to-speech facility, it generates speech that matches the context while perfectly displaying emotions.

Pros

• Using this best free AI chatbot basic version, users can make use of a microphone to command AI.
• Additionally, for better visibility, Gemini has two modes, like dark and white themes, that one can change from settings.

Cons

• This chatbot can’t easily process codes that restrict the developers from performing tasks related to programming and data analysis.
• Moreover, to access 2TB storage and other premium Google features, users have to upgrade it, which might not be cost-effective.

Pricing Plans

• Monthly: $19.99

4. Claude by Anthropic

Created in March 2023, this substitute for the best AI chatbot free has advanced reasoning capability to perform intricate tasks. For that, it has a text recognition and generation feature that offers accurate and fast responses with models like Hiku. Moreover, Opus can handle complex tasks while using its multimodal processing feature to offer responses in numerous languages. For data privacy, it adheres to AWS and HIPAA compliance.

Pros

• With Sonnet, users can balance speed and intelligence, making it ideal for general tasks like answering questions or drafting content.
• In addition, while signing in, it requires a verification code, to ensure authorized access of users.

Cons

• Claud only supports files of 500 pages when extracting information from the file,
• Not just that, to access maximum prompt limits, you have to access Claud Pro, which might cost a lot.

Pricing Plans

• Pro: $20/month
• Team: $25/month per user

5. Qwen by Alibaba

Independently created by Alibaba Cloud, Qwen features various versions ranging from Qwen-Max to Qwen-VL and Qwen-VL – open source. Each type has multiple types featuring various tokens; for instance, Qwen-Max has 1 million tokens, offering Qwen-Max-Latest and Qwen2.5-Max model types. Additionally, if you want to balance performance and speed, Qwen-Plus can accommodate 129,024 input tokens for handling detailed conversations.

Pros

• For text generation, performing OCR, and summarization, this chatbot uses the Qwen-VL version while offering Up to 1,280 tokens per image.
• Furthermore, its best artificial intelligence chat Qwen2.5 model version supports over 29 languages to offer multilingual responses.

Cons

• Though it’s Qwen 2.5 models are open source, some powerful variants, like the 72B model, are only accessible from Alibaba’s proprietary cloud services.
• Additionally, deploying Qwen 2.5 models for complex task handling requires extensive technical expertise.

Pricing Plans

• Free

6. Ernie Bot by Baidu

Whether it’s literary creation, business writing, or mathematical calculations, Ernie offers accurate responses as it is developed on the basis of Enhanced Representation through Knowledge Integration. Not just that, being developed on March 16, 2023, it also features a Pre-Trained Dialogue Generation Model for fine-tuning and reinforcement learning with human feedback. Among many best AI chatbot apps, this chatbot uses two approaches, including knowledge internalization and external utilization.

Pros

• With knowledge internalization, it learns from large-scale knowledge and data based on semantic units to generate meaningful responses.
• Furthermore, with external utilization, it integrates heterogeneous knowledge for context and reasoning-based prompt generation.

Cons

• While using this bot, it comes with response limits per minute or hour that are made by a single user.
• Additionally, though it’s free to use while handling complex tasks, it might offer faulty responses.

Pricing Plans

• Free to use from April 1, 2025.

7. Microsoft Copilot

Leveraging a large language model, it’s the best AI chatbot that is integrated into Microsoft 365 in two ways. For everyday use, you can upload various files like Word, Excel, and PPT to summarize and translate texts. Additionally, with its Business Chat, users can work across LLM to handle email, chats, documenting, meetings, and contacts easily. In addition, this chatbot offers you full control over what you want to keep or discard.

Pros

• Using the GPT-4o model, it can handle multimodal inputs like texts, images, and audio to provide comprehensive assistance.
• Furthermore, all LLMs are trained on a large but limited corpus of data to offer relevant and updated information.

Cons

• Copilot is officially supported in the English language only, which restricts its usage to non-natives.
• This AI chatbot only allows you to create 100 images per day in its free plan.

Pricing Plans

• Microsoft Copilot Pro: $20/month

8. DeepSeek by DeepSeek

Founded in December 2023 by Liang Wenfeng, DeepSeek is a Chinese startup that features open-source language models. It comes with numerous models that vary from DeepSeek Coder to Janus-Pro-7B and DeepSeek-R1. Additionally, the first model, DeepSeek Coder, was released in November 2023, which comes with 87% code and 13% natural language in English and Chinese. The foremost aspect is that all the models are pre-trained to offer context-relevant responses.

Pros

• With its DeepSeek-V2 model, users get strong performance and lower training costs of around 42.5%, making this chatbot accessible.
• Besides that, the DeepSeek-Coder-V2 model features 128,000 tokens to handle intricate coding for developers.

Cons

• Using this AI chatbot desktop or mobile version, the DeepSeek-R1 lacks the ability to process mathematical calculations correctly.
• Plus, after creating two to three responses, its server gets busy, leaving users waiting for it to generate replies.

Pricing Plans

• Free

9. Llama by Meta

Llama is another best AI chatbots for free that features three multilingual and lightweight models for a smooth user experience. Using Llama 3.1, users can get fast and accurate replies since it has 8B to 405B parameters that can run effectively on lower computing power. Additionally, Llama 3.2 has 1B and 3B parameters that function hassle-free on mobile phones. To process high-resolution images, it also has 11B and 90B.

Pros

• The Llama 3.3 has 70B parameters to ensure high performance and accuracy while being cost-effective.
• Moreover, users can use 1B or 3B parameter-based models for on-device applications to perform tasks like summarization and discussion over calls.

Cons

• Unlike other models, its Llama V2 is heavily dependent on data training, and these training data sets affect the quality and quantity of the model’s generalization ability.
• In addition, after training, this model memorizes the data instead of learning general patterns, resulting in poor performance on unseen data and real-world seniors.

Pricing Plans

• Free

10. Perplexity AI

Last but not least, Perplexity AI is the best artificial intelligence chatbot feature default model while offering open access to the latest models from OpenAI and Anthropic. It includes GPT-4 Omni, Claude 3.5 Sonnet & Haiku, Sonar Large, and Grok-2 for handling complex tasks. Additionally, its default model is optimized for quick search and browsing to deliver fast and accurate replies.

Pros

• In addition, both premium and basic plan holders can access the default model to ensure smooth functionality.
• With its free version, users can access 3 pro searches and upload 3 large files per day while using other bot models.

Cons

• For using GPT-4 Omni, Claude 3.5 Sonnet & Haiku, or other models, users have to access a premium plan.
• Plus, to upload extensive files without limit, you have to pay \$20 monthly, which might not be cost-effective.

Pricing Plans

• Professional: $20/month

Chatbot vs Large Language Model

While seeking answers to “What is the best AI chatbot?” people usually confuse them with language models. Overall, know that chatbot is an umbrella term for language models, meaning chatbot is an application and language model is a technology that powers it.

Feature	Chatbot	Large Language Model (LLM)
Definition	Software applications are designed to simulate human conversation, often for specific tasks like customer service or information retrieval.	Advanced AI models trained on vast datasets to understand and generate human-like language, capable of performing a wide range of language-related tasks.
Purpose	Handle specific, predefined tasks such as answering FAQs, booking appointments, or providing basic support.	Perform complex language tasks, including text generation, translation, summarization, and more, with a high degree of understanding and context awareness.
Technology	Often rule-based or use simple machine learning algorithms, advanced versions utilize Natural Language Processing (NLP) for better understanding.	Utilize deep learning architectures, particularly transformer models, trained on extensive datasets to capture nuances and context in language.
Capabilities	Though it’s the best AI chatbot, it is limited to predefined responses and tasks that struggle with unexpected inputs or complex queries.	Generate coherent and contextually relevant responses; adapt to a wide range of topics and tasks with minimal specific training.
Training Data	Trained on specific datasets relevant to their intended tasks, often limited in scope.	It is trained on diverse and extensive datasets encompassing various domains, languages, and contexts.
Customization	Customization involves manual updates and programming to handle new queries or tasks.	Can be fine-tuned with additional data to adapt to specific domains or tasks efficiently.
Response Type	Any AI chatbot desktop provides responses based on predefined scripts or limited AI capabilities may offer generic answers.	Generate detailed, context-aware, and nuanced responses, often indistinguishable from human writing.

How to Select the Best AI Chatbot?

When choosing the best artificial intelligence chatbot, there are various factors that one needs to determine before making a choice. Therefore, to save you from manual search, here are key considerations for AI chatbots:

1. Purpose & Use Case

Before opting for a chatbot, think about what you need it for and what type of task you will perform with it. This step is necessary, as various bots are designed for targeted purposes; for instance, most of them are for customer support and others for content writing. Hence, picking the right one ensures you get the most out of it while extracting relevant and accurate responses.

2. AI Capabilities & Language Model

Additionally, chatbot functionality depends on its language models like GPT-4, Gemini, or Claude. Bearing this factor in mind, look for a bot that offers extensive LLMs and features NLP for understanding natural language. Additionally, a chatbot should understand human emotion and tone while offering accurate responses without affecting the user’s feelings.

3. Integration & Compatibility

When looking for the best free AI chatbot, ensure it works with other tools like Slack, WhatsApp, or Microsoft Teams. In this case, Microsoft Copilot or Gemini is the foremost option, as they can seamlessly integrate with various platforms. Plus, using APIs, you can also use them for business needs, saving time and improving your efficiency.

4. Customization & Learning Ability

Choose a chatbot that lets you customize the response, add branding, or train them to your data. Moreover, consider one that allows you to tailor responses and insert another command without waiting for AI to complete the interaction. For business needs, these bots should also learn from user interaction to comprehend their needs and provide accurate replies.

5. Pricing & Data Privacy

As storing past conversations is the key requirement for an ideal chatbot, it ensures that it doesn’t preserve your personal details. Whether it’s paid or free, the bot must follow GDPR, CCPA rules, user consent policies, and transparency rules. Also, review the data privacy policy of bots to ensure how they use your information and whether it’s purposeful or not.

How to Build Real-Time AI Chatbots for Your App

After extensive research on “What is the best AI chatbot,” if you want to make a chatbot for your app, ZEGOCLOUD is what you need. Using this platform’s AI agent API, you can create AI agents or bots by adding a nickname, avatar, and bio. Whether it’s for business or educational needs, inserting this API will offer audio, video, and chat messaging facilities to interact with chatbots.

In addition, during the calls, the AI chatbot will display the human and AI interaction on the screen that can be synced to in-app chat messages after the call ends. Unlike other platforms’ APIs, ZEGOCLOUD ensures to stop the response within 500ms when the user interrupts. Plus, featuring LLM, ASR, and TTS, the AI bot can handle fast response, speech recognition, and natural text-to-speech capabilities.

The NLP model comprehends human emotions and offers context-relevant replies. Users can also adjust the tone and emotions of voice calls or messages, and generate images from its text to image models. When using its audio call, the AI noise reduction feature can eliminate unnecessary noise while letting users make a direct transition to in-app chat.

Conclusion

Summing up, exploring the best AI chatbot apps is not as easy as it seems since it requires extensive knowledge. Therefore, to save you effort, we have provided the necessary chatbot information with 10 foremost options. While reviewing the details, if you want to make a bot for your application, consider using ZEGOCLOUD. This platform offers you AI agent API, offering global coverage with 500+ nodes in 212 countries.

Read more:

• 10 Best Conversational AI Platforms
• 10 Use Cases of Conversational AI in Healthcare

FAQ

Q1: Which is the best AI chatbot?

The best AI chatbot depends on the specific use case. For general conversational abilities, ChatGPT by OpenAI is highly regarded. Other notable chatbots include Google’s Bard, Jasper AI (for content creation), and Anthropic’s Claude. Each excels in different areas, so the best chatbot will vary based on the user’s needs.

Q2: What AI is better than ChatGPT?

While ChatGPT is one of the most advanced conversational AIs, some users may find Anthropic’s Claude or Google’s Bard to be better for certain tasks, such as handling complex queries or offering more concise responses. The “best” AI often depends on the context and the specific tasks you need it to perform.

Q3: What is the smartest AI chat in the world?

As of now, ChatGPT (particularly GPT-4) is considered one of the smartest AI chatbots due to its broad knowledge base and ability to engage in detailed and nuanced conversations. However, other platforms, like Claude and Bard, are also pushing the boundaries in specific areas, like context understanding and multi-modal abilities.

Q4: Which ChatGPT is best?

The best version of ChatGPT currently is GPT-4, as it offers the most advanced capabilities, including better understanding, more accurate responses, and improved conversational abilities compared to earlier versions like GPT-3.