Chat Apps and Inference Services

This page lists popular chat apps and inference services, categorized by free tiers, intelligence, speed, and context window sizes. Updated as of April 15, 2025.

Chat Apps

All Chat Apps

• OpenAI - ChatGPT (GPT-4): Industry-leading chatbot with a 200,000-token context window and robust free tier.
• Google - Gemini (formerly Bard): Versatile chatbot with a 1,000,000-token context window and free access.
• AI Studio: Google's AI development platform for prompts and models.
• Anthropic - Claude: Safe, helpful AI with a 200,000-token context window.
• Microsoft - Copilot: AI assistant integrated with Microsoft services.
• xAI - Grok on X: Insightful AI for reasoning and truth-seeking. Accessible via xAI - Grok via x.
• xAI - Grok: Insightful AI for reasoning and truth-seeking. Also accessible via xAI - Grok via x.
• Cohere - Command: Enterprise-grade chatbot with NLP focus.
• Mistral AI - Mistral Large (via Le Chat): High-performance chatbot with a 128,000-token context window.
• Perplexity AI: Research-focused chatbot with real-time web access.
• Meta AI (Meta Llama): General-purpose chatbot integrated with Meta platforms.
• Groq: High-speed inference platform with chatbot capabilities.
• DeepSeek Chat: High-intelligence open-source chatbot.
• Manus AI: AI assistant for productivity and task management.
• Yeschat AI: Conversational AI for customer engagement.
• YouChat: Search-integrated chatbot for quick answers.
• Poe: Platform for accessing multiple AI models in one interface.
• Hugging Face Chat: Open-source chatbot platform.
• Character.AI: Customizable character-based chatbot.
• Llama 2 Chat (via various platforms, e.g., Hugging Face Spaces): Open-source chatbot using Llama 2.
• Falcon Chat (via various platforms, e.g., Hugging Face Spaces): Instruction-based chatbot using Falcon model.

Chat Apps with Best Free Tiers

• OpenAI - ChatGPT (GPT-4): Free tier with access to advanced models.
• Google - Gemini (formerly Bard): Fully free with no usage caps.

Smartest Chat Apps

• OpenAI - ChatGPT (GPT-4): Top-ranked for reasoning and knowledge.
• DeepSeek Chat: Excels in coding and complex queries.
• Google - Gemini (formerly Bard): High intelligence with vast data access.
• Anthropic - Claude: Strong reasoning and safety features.

Chat Apps with Largest Context Windows

• Google - Gemini (formerly Bard): 1,000,000 tokens for extensive text processing.
• Anthropic - Claude: 200,000 tokens, ideal for long conversations.
• OpenAI - ChatGPT (GPT-4): 200,000 tokens with advanced models.

Model Marketplaces

• Github Model Catalog: Marketplace for discovering and sharing AI models.

Chat Apps with Free Tiers - other

• Replika: Free emotional companion with optional upgrades.
• Tidio: Free plan for small businesses.