
Discover the 25 best alternatives to Simo in the Chatbots category.
Perplexity AI
The AI answer engine that always cites its sources
Perplexity AI is an AI-powered answer engine that performs real-time web searches and synthesizes sourced responses. Unlike traditional chatbots, it systematically cites its sources and offers advanced contextual search. Perplexity Pages allows generating complete, sourced articles in seconds.
Poe
Access all major AI models in one place
Poe is a platform developed by Quora that aggregates the best AI models (GPT-5, Claude 4, Gemini, Llama, etc.) in a single interface. It also allows users to create and share their own custom chatbots with the community.

MuleRun
Elevate an AI that truly learns how your work
MuleRun is the world's first self-evolving personal AI: it analyzes your work habits, decision patterns, and preferences, then continuously improves. Running 24/7 on a dedicated cloud VM, it even works offline and anticipates your needs before you express them. No coding. No setup. Just raise your AI and watch it evolve.
Groq
The world's fastest AI inference with LPU chips
Groq is an AI inference platform that leverages its proprietary LPU (Language Processing Units) chips to run language models at unprecedented speeds. It offers an API for Llama 3, Mistral, and Gemma models with millisecond-level latencies, ideal for real-time applications.
Mistral AI
Top European open-source models for sovereign AI
Mistral AI is a French startup developing highly performant open-source language models. Mistral Large, Mistral Small, and Mixtral are among the best models in their categories, offering a European sovereign alternative to US giants, with native GDPR compliance.
ChatGPT
The world's most used AI chatbot, powered by GPT-5
ChatGPT is the conversational assistant developed by OpenAI, now based on GPT-5 models. In 2026, it offers six subscription tiers (Free, Go, Plus, Pro, Business, Enterprise) and has evolved into a versatile platform: writing, analysis, coding, DALL·E image generation, Sora videos, in-depth research (Deep Research), and autonomous agent mode. The Plus plan at €20/month remains the best value for professional use.

ChatEngine
AI Chatbot for WhatsApp — bookings, sales, and 24/7 support
Automate your business with an AI on WhatsApp: 24/7 chatbot, appointment scheduling, sales, and mass campaigns. Connected to the official WhatsApp Business API.
Grok
xAI's AI with real-time access to X (Twitter)
Grok is the AI model developed by xAI (Elon Musk). It stands out for its real-time access to X (Twitter) data, its direct tone, and characteristic humor. Grok 3, the latest version, competes with the best models on the market, especially in reasoning and mathematics.
Microsoft Copilot
The AI assistant integrated into the entire Microsoft 365 ecosystem
Microsoft Copilot is Microsoft's AI assistant, powered by GPT-5 and integrated with Windows, Office 365 (Word, Excel, PowerPoint, Outlook), Teams, and Bing. It helps teams automate office tasks, summarize Teams meetings, analyze Excel data, and generate content directly within their usual tools.
Llama (Meta AI)
Meta's open-source model, a global reference for local AI
Llama is Meta's family of open-source models. Llama 3.3 is considered the best open-source model available, usable locally via Ollama, LM Studio, or online. It powers many third-party applications and serves as the foundation for thousands of specialized fine-tunings.
Character.AI
Chat with millions of ultra-realistic AI characters
Character.AI is a platform for creating and chatting with AI characters with distinct personalities. Very popular among young users, it offers millions of community-created characters, from celebrities to fictional figures.

AISpace
All cutting-edge AI models in one space
A single interface for all cutting-edge AI models. Run parallel chats with tabs, switch models mid-conversation, refine prompts, and use Quick Ask for instant answers without leaving your thread. Customize your experience with themes. No additional account required. Everything in one space.
discli
Command-line interface for Discord for AI agents and humans
Give your AI agent a Discord account. discli allows agents to send messages, react, manage threads, and moderate — all from the terminal. Built with permission profiles, an audit log, and rate limiting to prevent misuse. Also works perfectly for humans looking to automate Discord without a graphical interface.
DeepSeek
The Chinese open-source model that rivals the best
DeepSeek is an open-source AI model developed in China. DeepSeek-V3 and R1 have made waves by achieving GPT-4-level performance at a fraction of the development cost. Particularly strong in mathematics, coding, and logical reasoning, it is available for free and via API at highly competitive rates.
HuggingChat
Hugging Face's open-source chatbot, 100% free
HuggingChat is Hugging Face's open-source chat interface, providing free access to the best open-source models (Llama 3, Mistral, Qwen, etc.). Ideal for developers looking to test different models at no cost and for those concerned with algorithmic transparency.
OpenRouter
Access 200+ AI models via a single OpenAI-compatible API
OpenRouter is an API platform that unifies access to over 200 AI models (GPT-5, Claude 4, Llama 3, Mistral, etc.) through an OpenAI-compatible interface. It offers real-time price comparison, automatic failover between providers, and free models for small volumes.
Cohere
Enterprise LLMs for semantic search and RAG
Cohere is an AI platform specialized in enterprise applications, offering optimized models for semantic search (Embed), text generation (Command R+), and reranking. Highly regarded for its RAG capabilities, it is particularly well-positioned for knowledge management applications.

Littlebird
The AI assistant that already knows your work
Littlebird is an AI assistant that already knows your work. Every response, draft, or plan is more relevant because it has context. It sees what's on your screen, transcribes your meetings, and builds a private memory of your projects and priorities. Littlebird connects information across your apps and conversations, providing answers grounded in your real work. No integrations required. If it appeared on your desktop, Littlebird saw it too. Just ask.
Claude
Anthropic's AI, a leader in reasoning and coding
Claude is Anthropic's AI assistant, based in 2026 on the Claude 4.6 model family (Opus 4.6, Sonnet 4.6, Haiku 4.5). It excels at analyzing long documents (1M token context window), complex reasoning, nuanced writing, and coding with Claude Code. Plans range from free to Max (Opus 4.6 with 5x to 20x usage), including a Pro plan at €20/month.

MiniMax M2.7
Self-evolving AI model powering autonomous agents
The MiniMax M2.7 is a self-evolving AI model that has developed its own capabilities. It can create agent environments, collaborate through agent teams, and manage complex tasks like coding, debugging, or research. With high SWE-Pro performance and reduced intervention time, it outperforms static AI to deliver continuously learning systems that adapt and execute complex work with minimal human input. Available via API and MiniMax Agent for developers seeking native AI workflows.
Gemini
Google's multimodal AI, integrated across the entire Google ecosystem
Gemini is Google's AI model, available in multiple versions (Flash, Pro, Ultra). It natively integrates with Google products (Gmail, Docs, Drive, Meet) and excels at multimodal tasks combining text, image, audio, and code. With a one-million-token context window and Google Workspace integrations, it's a natural choice for Google suite users.

Dardasha 1.0
Your knowledge base, now conversational
Dardasha is an autonomous AI assistant that transforms your website content into instant answers. Instead of leaving your FAQs, documentation, and pages unused, Dardasha makes them searchable, conversational, and truly useful. Your users can ask questions in natural language and receive precise answers instantly. With native Arabic support built-in from the ground up, Dardasha is designed for businesses looking to better serve their users without overburdening their support teams.

Vera by Cortex Research
Your next breakthrough, accelerated by AI
Vera is a UK-native AI agent platform powered by Vera's foundational models. It helps teams automate complex tasks and accelerate decision-making.

Flowith Canvas
A new way to interact with AI beyond traditional chats
Flowith is an agentic AI workspace where you think, create, and execute in a single flow. Canvas for visual ideation, Agent Neo for unlimited task execution, and a Knowledge Garden that makes your context smarter over time.

LobeHub IM Integration
Chat with your AI agent where your team already works
Meet the IM integration for LobeHub — you can now chat with your AI agent directly in the apps your team already uses. Connect your LobeHub agent to Slack, Discord, and other messaging platforms without leaving your workflow. Simply message your agent like a colleague and get instant responses in the conversation. The easiest way to integrate AI into your daily routine without changing your habits.