In 2025, chatbots aren't just answering FAQs - they’re writing code, generating content, translating languages, and helping businesses run faster than ever. At the heart of this transformation are Large Language Models (LLMs) - AI systems trained to understand and generate human-like language.
In this guide, we’ll break down the best AI chatbots and LLMs of 2025, what sets them apart, and how they’re reshaping the way we work, communicate, and connect with customers. In the end, we’ll wrap with a look at how businesses can deploy their own chatbot on WhatsApp using Heltar.
What Is an LLM Chatbot?
An LLM chatbot is an artificial intelligence system trained on large datasets that allow it to understand, process, and respond in natural language. These chatbots can hold contextual conversations, answer questions, automate workflows, and even generate long-form content. Their ability to learn from interactions makes them smarter over time, offering increasingly personalized and efficient support across industries—from e-commerce to healthcare.
Top LLM Chatbots & AI Platforms to Know in 2025
1. ChatGPT (OpenAI)
ChatGPT remains the most well-known conversational AI platform globally. With a strong balance of general knowledge, natural conversation, and tool integration, it's widely used in customer support, marketing, education, and content creation. Its plugins, voice capabilities, and image tools make it extremely versatile.
2. Google Gemini
Gemini continues to impress with its deep natural language understanding, multilingual support, and integration with Google Workspace. It’s ideal for businesses that require global communication, translation, and streamlined productivity within the Google ecosystem.
3. Microsoft Copilot
Tightly integrated into the Microsoft 365 suite, Microsoft Copilot helps users draft emails, summarize meetings, and automate document workflows. It’s perfect for enterprises focused on productivity and internal automation.
4. Anthropic Claude
Claude focuses on ethical, transparent AI usage, with strong guardrails around safety and privacy. It’s a great choice for sectors like finance, law, and healthcare that demand high compliance standards along with powerful performance.
5. xAI Grok
Elon Musk’s Grok is designed for real-time understanding of trending events and current data. It offers highly contextual, intelligent responses, making it ideal for users who want up-to-date, factual answers in media, politics, or public-facing roles.
6. Perplexity AI
Positioned as an "answer engine," Perplexity is designed to give factual, source-linked responses in a conversational format. It’s especially popular among students, educators, and researchers who value citation-backed AI.
7. Meta AI
Integrated deeply into Meta’s ecosystem (Facebook, Instagram, WhatsApp), Meta AI helps brands and users engage more meaningfully on social platforms. It tailors responses based on user behavior and context, enhancing engagement for digital marketing.
8. DeepSeek
A rising star in the LLM ecosystem, DeepSeek offers strong performance in both reasoning and factual tasks. Known for its technical sophistication and multilingual capabilities, it’s a top choice for businesses looking for a robust alternative to the mainstream players. Developers appreciate its transparency and strong results in benchmarks.
9. Cohere
Cohere is a favorite for content creators, marketers, and agencies. It excels at generating natural, stylistically accurate text for copywriting, social media, and branded communication. Cohere also provides APIs for embedding LLM capabilities into apps and workflows.
10. Orca AI
Orca is engineered for handling large volumes of customer support queries. Its strength lies in automating FAQs, reducing wait times, and improving service quality without requiring massive human support teams.
What Makes These Chatbots Different?
Chatbot | Best Use Case | Open Source | Privacy Focus | Industry Fit |
|---|---|---|---|---|
ChatGPT | General-purpose AI assistant | No | Moderate | Content, Education, Support |
Claude | Secure, ethical conversations | No | High | Finance, Healthcare, Legal |
Google Gemini | Multilingual content & docs | No | Moderate | Global Business, Translation |
Microsoft Copilot | Productivity automation | No | High | Enterprise, Teams |
xAI Grok | Real-time intelligence | No | Moderate | Media, Public Figures |
DeepSeek | Reasoning & factual accuracy | Yes | Moderate | Technical, Research, Global |
Meta AI | Social media engagement | No | Moderate | Marketing, Retail |
Cohere | Creative content generation | No | Moderate | Agencies, Content Creators |
Perplexity AI | Research & Q&A with citations | No | Moderate | Education, Journalism |
Orca | Scalable customer service | No | High | E-commerce, SaaS, Utilities |
Want to Build an AI Chatbot for WhatsApp?
While these platforms offer incredible capabilities, getting them in front of your customers, on the platforms they already use, is key. That's where Heltar comes in.
Heltar is a WhatsApp Business API provider that helps businesses build and deploy custom AI chatbots on WhatsApp. Whether you're using ChatGPT, Claude, DeepSeek, or another LLM, Heltar allows you to:
Automate customer support 24/7 on WhatsApp
Build intelligent, brand-aligned bots with no-code or low-code tools
Integrate seamlessly with your CRM, helpdesk, or LLM of choice
Scale conversations with real-time insights and analytics
With over 2 billion users on WhatsApp, Heltar helps you meet your customers where they are - with the intelligence of LLMs powering the experience.
Read more about Chatbots on WhatsApp!
Final Thoughts
AI chatbots are no longer just a tech trend - they’re a strategic advantage. Whether you're looking to enhance customer experience, boost internal productivity, or create smart workflows, there's an LLM chatbot out there that fits your goals.
And if you’re ready to bring these cutting-edge capabilities to WhatsApp, Heltar makes it simple. Build your AI chatbot once, deploy it everywhere your customers already are, and stay ahead of the competition.
