Discover the best free AI chat Online tools in 2025. Learn how chatbots can boost productivity ,simplify your daily tasks and make the best use of them
What exactly is AI Chat?
AI chat is basically when you talk to an online chatbot that’s powered by artificial intelligence. Instead of feeling robotic, these tools can actually understand your questions and reply in a natural way. In 2025, they’re becoming a big deal because people are using them for everything – from studying, doing research to casual chatting and even creating stories
With scientific and technological advancement, chatbots have come a long way from the simple bots of few years ago. They can now understand context, long paragraphs, hold long conversations and even understand image and videos. Recent progress have made AI chat way more useful and more fun too, compared to how it was used to few years ago. In this post you will learn about how AI chatbots works, the best AI Tools in the world currently and how to make the best use of them along with their potential cons
How do AI Chatbots work?
AI chatbots work by taking the text you type and sending it to an underlying AI model. This model processes your words using natural language processing (NLP) and machine learning to understand the meaning and generate a response. The chatbot app then delivers that reply back to you in a conversational format, making it feel like you’re chatting with a person.
While the app itself may handle things like user accounts, conversation history, or extra features, the AI model is responsible for interpreting your input and predicting the most relevant answer. Some platforms even use more than one AI model, and developers can adjust how the chatbot responds—so two apps using the same engine might still feel different in tone and style.
Best Free AI Chat Online Tools to Try in 2025
In this section, we’ll look at the best AI chatbots available in 2025, where they came from, and what makes each of them unique and which one you should pick according to your own needs and desire
| Chatbot | Pros | Cons | Pro Price | Visit |
|---|---|---|---|---|
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• Wide accessibility • Learns from feedback • 24/7 availability |
• Best features require a paid plan | $20/mo | Visit |
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• Free and unlimited access • Fully open source • Strong reasoning |
• Weak in creative writing • Privacy concerns (China-based) |
Free | Visit |
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• Native multimodality • Deep Google integration • Good memory for long chats |
• Inconsistent reasoning/responses • No open API |
$19.99/mo | Visit |
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• Up to 200k token context • Safety & privacy-friendly |
• Overly cautious • Weak at programming • 200k not on free plan |
$20/mo | Visit |
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• Deep Meta integration • Fast, free image gen • Open-source model |
• Privacy/data collection concerns • Can hallucinate / lack creativity |
Free | Visit |
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• Integrated with X (Twitter) • Sarcastic/fun personality • Regular & fun modes |
• Requires X Premium+ • Limited outside X |
$16/mo (Premium+) | Visit |
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• Emotional support & coaching • Friendly tone • Free |
• Not for deep research • Limited technical ability |
Free | Visit |
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• Great for research & fact-finding • Real-time web access • Shows sources |
• Weak creativity • Limited Copilot searches (free) |
$20/mo | Visit |
1.ChatGPT:Best Overall Free Chatbot
By far the most popular chatbot today, ChatGPT was developed by OpenAI, an artificial intelligence research company based in San Francisco. It is built on the GPT (Generative Pre-trained Transformer) architecture, which was first introduced in 2018.For general use, ChatGPT is arguably the best chatbot in the world for its user friendly interface, its creativity and its ability to generate long texts, brainstorming and its flexibility on various things from generating images to generating stories.
The free version of ChatGPT gives access to GPT-4o for limited messages and then switch to GPT-4o mini after the limit which, is fast enough and good for everyday use, and works well for casual questions, writing help, and brainstorming. The Pro version unlocks unlimited access to GPT-4o, which is more advanced — it provides deeper reasoning, better accuracy, and handles complex tasks more reliably. Pro also often includes priority access during peak times, faster response speeds, and access to new experimental features like advanced data analysis, image input, or voice mode.
Personally, I think the free version is very enough unless you are using ChatGPT heavily everyday or unless you are using it for work purpose.
Pros of ChatGPT:
• Wide accessibility
• Learning from Feedback-ChatGPT can learn from user feedback and improve its performance over time
•24/7 availability
Cons of ChatGPT:
•You have to pay for best features
2.Deepseek:Your Technical cost effective assistant
DeepSeek is a Chinese artificial intelligence company founded in May 2023 by Liang Wenfeng, it quickly gained attention for its advanced chatbot, DeepSeek-R1 due to its high reasoning abilities which were comparable to OpenAI models. What made it stand out wasn’t just speed or hype—it was smart, cost-effective AI that could reason and code better than many expected. And the fact that it is fully open source, quickly won the attention of developer communities around the world.
Although headquartered in Hangzhou, its models quickly attracted attention and users worldwide, one of the major factor for its rapid gain in popularity was its extreme cost effectiveness, DeepSeek-R1 and V3 models reportedly cost under $6 million to develop, while GPT-4 cost over $100 million. In ChatGPT you have to pay around 20$ per month to access its full features, whereas in Deepseek, its V3 and R1 models are completely free.
Pros of Deepseek:
•Free and unlimited access
•Fully Open Source
•Powerful reasoning
Cons of Deepseek:
•Though it excels in reasoning and math, it may not excel in creative writing
•Risk of Data Privacy: It is based in China which may raise data privacy and security concerns
3.Google Gemini: Multimodal Master
Over the years, Google experimented with building AI that could understand not just words, but also images, sounds, and even videos. Gemini was born out of this vision-unlike other AI chatbots, Gemini is Natively Multimodal, meaning it can understand understand not only text but images, sounds and even videos and provide long and exceptional details about it
Now a common question is “Cant ChatGPT and Deepseek understand images too?” the answer to that is yes but the thing that makes Gemini special (especially the 1.5 version) is that it was build from the beginning to understand images, audios and even videos just as good as text . Sure other chatbots can understand images too but it is a two step process unlike in Gemini where it can process images and videos rapidly as fast and accurate as text. Think of other chatbots having a “text brain” and Gemini having a “text, images, videos, audios brain “.
Besides its Multimodal mastery, Gemini have several other advantages like having massive context windows, complex reasoning etc. One feature though, which makes it standout among its competitors alongside its multimodal mastery, is its deep integration to Google itself which is extremely useful if you are using Google and its apps (which most people do). Basically it has a home-field advantage on the entire internet, because it’s built by Google, for Google, it doesn’t just talk about helping you; it can act directly within the tools you use most- It can find that lost email for you in Gmail, help you wordsmith a tricky sentence in Docs, or even make sense of a messy spreadsheet in Sheets and MANY more.
Pros of Google Gemini:
•Native Multimodality
• Deep Google Integration
• Good memory for Long conversation
Cons of Google Gemini:
• Inconsistent reasoning and response
• No open api
4.Claude Ai: Best for Long Context Reasoning and Privacy
Claude AI is an artificial intelligence assistant created by Anthropic, designed to be a helpful and harmless conversational partner. It has a massive context window of 200k tokens, allowing it to actively remember and work with 150k words which makes it great for research assistant ,it is also extremely good at distilling long texts into a clear summaries which makes it better for an writing assistant compared to other chatbots.
Another really cool thing about Claude is its ethical design which makes it very privacy and security friendly compared to its competitors. Anthropic built Claude with “Constitutional AI” which basically means it follows rules designed to keep it safe and non-exploitable. However due to this very reason, it can be overly cautious and be more prone to refusal
Pros of Claude Ai:
• Supports up to 200k tokens of context
• Safety and Privacy friendly
Cons of Claude Ai:
• Can be overly cautious
• Weak at programming
• Its killer feature, the 200k tokens is not available on the free plan
5.Meta AI: Best chatbot for creative generation
When people hear “Meta,” they usually think of Facebook, Instagram, or WhatsApp. But behind the scenes, Meta has been building something much bigger: Meta AI. You can access it and talk to it through Meta apps which makes it somewhat unique because most chatbots are a complete different app or site, but with Meta AI you can summon it on your group chats and interact with it together with your friends and family.
Another cool feature is its image generation capability, you can generate unlimited images within your chat. Sure other chatbots can generate images too but it usually comes with a daily generation limit and needs subscriptions for unlimited generation but Meta AI can generate it with 0 cost and it is also noticeably faster
Another really huge advantage of Meta AI is its scalability, its LLaMA models are made open source, meaning everyone including you and I can download it, modify and run it on our own devices which makes it really popular among developer communities and boost its innovation potential. However Meta AI still have huge drawbacks like less creative or less versatile compared to its competitors like ChatGPT or Deepseek
Pros of Meta AI:
•Deep integration with Meta
•Fast and cost free image generation
•Open source model
Cons of Meta AI:
•Privacy and Data Collection concern due to its integration to Meta
•Lack of creativity or hallucinations
6.Grok: The X bot
Grok AI is Elon Musk’s chatbot built right into X (Twitter), which means it can pull in live updates and trending conversations while you chat with it. Unlike most polished, formal chatbots, Grok has a sarcastic and fun personality—it’s designed to feel a bit more human (and sometimes rebellious).
It has a cool feature where you can switch between “regular” mode and “fun” mode ,regular mode gives straightforward and direct answers whereas in fun mode, it gives fun and witty answers. It has real time knowledge due its deep integration with X which means it can summarize and analyze trending topics . It also have a very human like humor which may be a pro or con depending on the user.
However one huge setback of Grok is that it is not free, well there’s a free limited free usage but it is VERY limited and you would most likely need to pay to use it even for light work and brainstorming. To get Grok full access you would need to subscribe X premium which cost $8/month or $40/month (X+ premium) or SuperGrok (30$)
Pros of Grok AI:
•Deep integration with X (Real time knowledge)
•Fun and sarcastic personality and humor
Cons of Grok AI:
•Very Limited free access
•Tied to Elon Musk’s Persona and Controversies
7.Perplexity:Best for Research
Founded in 2022 by a team of former OpenAI, Meta, and Quora engineers decided to try something new. Instead of building an AI that just makes stuff up, they wanted one that could actually look things up and show where the information came from. That was how Perplexity was formed, while most AIs were busy giving long answers (and sometimes even made up) , Perplexity gave short and accurate answer and even tell you where it got that info from. This made Perplexity very suitable for research purpose
Perplexity pro (the paid plan) has a really helpful feature called Copilot Mode, basically its a research assistant which pushes its research abilities even further. It works like an interactive research assistant, it asks follow-up questions, guides you step by step, and pulls from a wider range of sources. This makes it great for digging deeper into complex topics
Pros of Perplexity AI:
•Very good for research and fact-finding
•Real time web-access
•It shows where it go information from
Cons of Perplexity AI:
•Weak creativity
•Free plan gives only a few Copilot searches per day