This page lists popular and experimental AI chatbot, inference, and generative AI services, categorized for clarity and ease of use. Updated as of May 10, 2025.
| Service Name | Link | Key Features | Context Window (if available) | Free Tier Information |
|---|---|---|---|---|
| ChatGPT (OpenAI) | https://chat.openai.com/ | General-purpose AI, natural language processing, content creation, coding assistance | 200,000 tokens | Free tier with access to advanced models, limitations may apply |
| Gemini (Google) | https://gemini.google.com/ | Real-time fact-checking, search integration, Google ecosystem integration | 1,000,000 tokens | Fully free with no strict usage limits |
| Claude (Anthropic) | https://claude.ai/ | Creative writing, nuanced conversation, ethical AI, strong privacy | 200,000 tokens | Generous free tier with limitations |
| Microsoft Copilot | https://copilot.microsoft.com/ | Integrated with Microsoft services, web search integration, Microsoft ecosystem compatibility | Not specified | Fully free, integrated with Windows and Edge |
| Perplexity AI | https://www.perplexity.ai/ | Research-focused, real-time web access, accurate answers with source citations | Not specified | Free tier with limitations |
| DeepSeek Chat | https://chat.deepseek.com/ | High intelligence, open-source, excels in coding and complex queries | Not specified | Fully free |
| Hugging Face Chat | https://huggingface.co/chat | Open-source platform, access to various open-source models, customizable | Not specified | Fully free |
| YouChat (You.com) | https://you.com/search?tbm=youchat | Search-integrated, quick answers, general-purpose AI | Not specified | Fully free |
| Poe (Quora) | https://poe.com/ | Access to multiple AI models (OpenAI, Anthropic, Google, Meta), create specialized bots | Not specified | Free access with limitations |
| Character.AI | https://beta.character.ai/ | Customizable character-based chatbot | Not specified | Free access with limitations |
| Groq | https://groq.com/ | High-speed inference platform, fast AI inference for open models | Not specified | Free access with limitations |
| Le Chat (Mistral AI) | https://chat.mistral.ai/ | Multilingual AI assistant, access to Mistral Large models | 128,000 tokens | Free access with limitations |
| Manus AI | https://manus.im/app/ | AI assistant for productivity and task management | Not specified | Free access with limitations |
| Yeschat AI | https://www.yeschat.ai/ | Conversational AI for customer engagement | Not specified | Free access with limitations |
| Replika | https://replika.ai/ | Emotional companion, optional upgrades | Not specified | Free access with optional paid features |
| Tidio | https://www.tidio.com/ | Live chat and AI-powered chatbot solutions, integrations | Not specified | Free plan with limitations |
| Grok (xAI) | https://x.com/i/grok | Insightful AI for reasoning and truth-seeking (via X) | Not specified | Accessible via X subscription |
| Cohere - Command | https://dashboard.cohere.com/playground/chat | Enterprise-grade chatbot, NLP focus | Not specified | Free tier with limitations |
| DeepSeek Chat (via DeepSeek-V3) | https://chat.deepseek.com/ | General-purpose AI search engine | Not specified | Fully free |
| Brave Leo AI | Not specified | Privacy-focused AI assistant | Not specified | Integrated into Brave browser |
| Andi | Not specified | Simplicity-focused AI search engine | Not specified | Fully free |
| Komo | Not specified | Link-surfacing AI search engine | Not specified | Fully free |
| Quidget | https://quidget.ai/ | Accuracy, ease of use, integrations, customer support automation | Not specified | Pricing plans available, check website for free trial/tier |
| Gleen AI | https://www.gleen.ai/ | Support chatbot creation platform | Not specified | Pricing plans available, check website for free trial/tier |
| Google Cloud Dialogflow | https://cloud.google.com/dialogflow/ | Multi-channel AI deployment, conversational interface building | Not specified | Free tier with usage limits |
| Kore.ai | https://kore.ai/ | Enterprise virtual assistants, prebuilt templates, AI training tools | Not specified | Pricing plans available, check website for free trial/tier |
| Botpress | https://botpress.com/ | Open-source, customizable, for developers | Not specified | Generous free tier and paid plans |
| Intercom | https://www.intercom.com/ | Multi-channel integration, seamless human handoffs | Not specified | Pricing plans available, check website for free trial/tier |
| Rasa | https://rasa.com/ | Full customization, developer-focused, trainable NLU | Not specified | Open-source with enterprise solutions |
| Flow XO | https://flowxo.com/ | Versatile platform, integrations with various services | Not specified | Free plan with limited interactions |
| Lindy | https://www.lindy.ai/ | Scalable, collaborative, for customer service | Not specified | Free trial and paid plans |
| Meta AI (Meta Llama) | https://meta.ai/ | General-purpose, integrated with Meta platforms | Not specified | Integrated into Meta platforms |
| Dialogflow by Google | https://cloud.google.com/dialogflow/ | Conversational interface building | Not specified | Generous free tier for text or voice interactions |
| ManyChat | https://manychat.com/ | Social media focused (Facebook Messenger), automation | Not specified | Free plan with limited subscribers |
| MobileMonkey | https://mobilemonkey.com/ | Social media marketing and customer support | Not specified | Free plan with limitations |
| OpenAssistantGPT | https://openassistantgpt.io/ | Build chatbots using API Assistant | Not specified | Free tier with limited messages |
| DocsBot AI | https://docsbot.ai/ | Custom chatbots from documentation | Not specified | Generous free tier with limited documents and messages |
| Chatbase | https://www.chatbase.co/ | Build AI chatbots from a knowledge base | Not specified | Free plan with limitations |
| Gista | https://gista.ai/ | AI chatbot for Squarespace websites | Not specified | Pricing plans available, check website for free trial/tier |
| Application Name | Link | Key Features (including local inference capability) | Supported Models (if local) | Free Tier Information |
|---|---|---|---|---|
| ChatGPT Desktop App (OpenAI) | https://openai.com/chatgpt/desktop/ | Native macOS app, faster access, offline queue, Advanced Voice Mode | GPT-4o, GPT-4, GPT-3.5 | Free access with limitations |
| Microsoft Copilot | https://apps.apple.com/us/app/microsoft-copilot/id6738511300?mt=12 | Image and text generation, shortcut launcher, dark mode | OpenAI and Microsoft AI models | Fully free |
| Perplexity AI | https://apps.apple.com/us/app/perplexity-ask-anything/id6714467650?mt=12 | Search and discovery with AI, answers with sources | Not applicable | Free access with limitations, paid subscription available |
| MacGPT | https://www.macgpt.com/ | Menu bar integration, global access, web or native access to ChatGPT, OpenAI API support | Not applicable | Free and paid versions available |
| TypingMind | https://typingmind.com/ | Connects to various AI models, conversation folders, custom prompts | Not applicable | Free version with limitations, paid plans available |
| LM Studio | https://lmstudio.ai/ | Runs LLMs locally, model discovery and download, chat interface, local server with OpenAI-like API | Llama, DeepSeek, Qwen, Phi (GGUF, MLX) | Free for personal use, commercial use on request |
| Ollama + Open WebUI | https://ollama.com/, https://github.com/open-webui/open-webui | Runs LLMs locally (Ollama), sleek chat interface (Open WebUI) | Llama 3, DeepSeek-R1, Qwen 3, Mistral, Gemma 3, and others | Fully free |
| Private LLM | https://privatellm.app/ | Runs LLMs fully offline, Siri and Shortcuts integration | Llama 3.2/3.3, Google Gemma 2, Qwen 2.5, Phi-4, Mistral 7B, StableLM 3B | Paid app ($4.99), no subscriptions |
| fullmoon: local intelligence | https://fullmoon.app/ | Runs LLMs locally, offline functionality, optimized for Apple Silicon | DeepSeek R1, and others | Free and open source |
| Jan | https://jan.ai/ | Local API server compatible with OpenAI, uses Cortex engine | Llama 3.2, Phi, DeepSeek, Mistral, and others | Free to download and use |
| BoltAI | https://boltai.com/ | ChatGPT app for Mac, offline capabilities via Ollama | Models supported by Ollama | Free and paid versions available |
| Enclave AI | Not specified | Runs LLMs locally, focus on privacy | Not specified | Free |
| AnythingLLM Desktop | https://anythingllm.com/ | Runs LLMs locally, one-click install, supports various document types | Any model compatible with the backend | Free and open source |
| Chatbox AI | https://chatboxai.app/ | AI client, chat with documents and images, code generation, web search | GPT-4o, GPT-4.1, Claude 3.7 Sonnet, and others (via API or Chatbox AI service) | Free version with own API key, paid subscriptions available |
| Peek | https://prateekkeshari.gumroad.com/l/peek | Access to multiple AI chatbots (ChatGPT, Gemini, Perplexity, Poe, Claude, etc.) | Not applicable | Free |
| Sider | https://sider.ai/ | AI chatbot and assistant, group chat with AI, quick actions for text | ChatGPT, DeepSeek, Claude, Gemini | Free and paid versions available |
| Autopilot | https://autopilotwriting.ai/ | Writing AI chatbot, integrates with all Mac apps, summarization, content creation | ChatGPT, GPT, OpenAI models | Free download with in-app purchases |
| Nova | https://novaapp.ai/ | AI Chatbot developed on GPT-4o & Gemini | GPT-4o, Gemini | Free trial, paid subscription |
| ThinkBuddy | Not specified | AI-powered productivity companion, seamless integration via shortcuts, multi-modal AI | Not specified | Check website for pricing |
| Raycast AI | Not specified | Integrates AI into macOS Spotlight search | Not specified | Part of Raycast Pro subscription |
| MindMac | https://mindmac.app/ | Native macOS app, uses own OpenAI API key | Various OpenAI models | Free version with limitations, paid licenses available |
| Application Name | Platform | Link | Key Features | Free Tier Information |
|---|---|---|---|---|
| ChatGPT (OpenAI) | iOS | https://apps.apple.com/us/app/chatgpt/id1668349276 | General-purpose AI, voice input, history sync | Free with limitations, paid subscription available |
| ChatGPT (OpenAI) | Android | https://play.google.com/store/apps/details?id=com.openai.chatgpt | General-purpose AI, voice input, history sync | Free with limitations, paid subscription available |
| Gemini (Google) | Android | https://play.google.com/store/apps/details?id=com.google.android.apps.bard | Integrated with Google services, voice input, image input | Free |
| Claude (Anthropic) | iOS | https://apps.apple.com/us/app/claude-ai-assistant/id6473503634 | Nuanced conversation, handles long documents | Free with limitations, paid subscription available |
| Nova | iOS | https://apps.apple.com/us/app/nova-ai-chatbot/id1667032160 | Powered by GPT-4 & Gemini, cross-compatible | Free trial, paid subscription |
| Nova | Android | https://play.google.com/store/apps/details?id=com.future.nova | Powered by GPT-4 & Gemini, cross-compatible | Free trial, paid subscription |
| Autopilot | iOS | https://apps.apple.com/us/app/autopilot-writing-ai-chatbot/id6446273146 | Writing assistant, integrates with other apps | Free download with in-app purchases |
| Perplexity AI | iOS | https://apps.apple.com/us/app/perplexity-ask-anything/id6714467650 | Research-focused, answers with sources | Free with limitations, paid subscription available |
| Perplexity AI | Android | https://play.google.com/store/apps/details?id=com.perplexity.ai | Research-focused, answers with sources | Free with limitations, paid subscription available |
| API Name | Provider | Link | Key Features | Supported Models (examples) | Free Tier Information |
|---|---|---|---|---|---|
| OpenAI API | OpenAI | https://openai.com/api/ | Advanced NLP, code generation, chatbots, content creation | GPT-4.5, GPT-4, GPT-3.5, Codex | Free tier with limited usage, paid plans available |
| Hugging Face Inference API | Hugging Face | https://huggingface.co/inference-endpoints | Easy deployment of open-source ML models, wide range of tasks | BERT, GPT-2, Stable Diffusion, and many more | Free tier with limited credits, paid plans based on usage |
| Anthropic's Claude API | Anthropic | https://www.anthropic.com/product | Safe, ethical, and effective performance, strong reasoning and coding | Claude 3.7 Sonnet, Claude 3 Opus, Claude 3 Haiku | Pay-as-you-go token-based pricing, no free tier or trial |
| Google Cloud AI APIs (Gemini API) | Google Cloud | https://cloud.google.com/ai-platform/ | Multimodal capabilities, Vision API, NLP API, Speech-to-Text API | Gemini 2.0, Vision API, Natural Language API | Pay-per-use, free tiers with usage limits, promotional credits for new customers |
| AWS AI Services | Amazon Web Services | https://aws.amazon.com/ai/ | Text analysis, image/video analysis, chatbots, speech-to-text | Comprehend, Rekognition, Lex, Polly, Transcribe | Usage-based pricing, free tiers with limited usage for various services |
| Microsoft Azure Cognitive Services | Microsoft Azure | https://azure.microsoft.com/en-us/products/cognitive-services/ | Vision API, Language API, Speech API, Decision API | Various models for vision, language, speech, and decision-making | Pay-as-you-go, free tier and flexible enterprise pricing |
| Together AI | Together AI | https://www.together.ai/ | High-performance inference for open-source LLMs, sub-100ms latency | Llama 3, Mistral, DeepSeek, Qwen | Free tier with starting credits, pay-as-you-go per-token pricing |
| Fireworks AI | Fireworks AI | https://fireworks.ai/ | Fastest model APIs, multi-modal AI tasks (text, image, audio) | FireLLaVA-13B, and many others | Pay-as-you-go, free credits for new users |
| Hyperbolic | Hyperbolic | https://hyperbolic.xyz/ | Cost-effective GPU rental and API access, decentralized network | Various open-source models | Pay-as-you-go pricing |
| Replicate | Replicate | https://replicate.com/ | Quick experiments, building MVPs, thousands of pre-built open-source models | Wide range of models for text, image, audio, etc. | Pricing varies by model, some free models available |
| Groq API | Groq | https://groq.com/ | Instant Intelligence, fast AI inference for open models | Llama, DeepSeek, Mixtral, Qwen, Whisper | Free tier available |
| DeepInfra | DeepInfra | https://deepinfra.com/ | Robust platform for large AI models, easy-to-use inference API | Most OpenAI APIs and many other models | Pricing varies by model, check website for details |
| OpenRouter | OpenRouter | https://openrouter.ai/ | Unified interface for LLMs, routes requests to best providers | DeepSeek, Llama 3, Mistral, Gemma, Qwen, and many more | Free API with limited requests |
| Mistral API (La Plateforme) | Mistral AI | https://mistral.ai/platform/ | High-quality text generation and understanding | mistral-large-2402, mistral-8b-latest, and others | Free API available |
| Cerebras | Cerebras | https://cerebras.net/ | Free API for LLMs | Various LLMs | Free API available |
| Cohere API | Cohere | https://cohere.com/ | Customizable language models, NLP focus | Command, Embed, Generate, and other models | Free tier with limited requests, pay-as-you-go plans |
| Platform Name | Link | Supported Operating Systems | Key Features | Free Tier Information |
|---|---|---|---|---|
| Ollama | https://ollama.com/ | macOS, Linux, Windows | Simple command-line interface, growing model library, community GUIs available | Fully free |
| Cortex | https://cortex.so/ | macOS, Linux, Windows | CLI inspired by Ollama, multi-engine support, pulls models from Hugging Face | Free and open source |
| LM Studio | https://lmstudio.ai/ | macOS, Windows, Linux | User-friendly desktop app, model discovery and download, local server with OpenAI-like API | Free for personal use |
| LocalAI | https://localai.io/ | macOS, Linux, Windows | OpenAI API compatible, runs on CPU, supports multiple model backends | Free and open source |
| Private LLM | https://privatellm.app/ | macOS, iOS, iPadOS | Runs LLMs fully offline, optimized for Apple Silicon | Paid app ($4.99) |
| fullmoon: local intelligence | https://fullmoon.app/ | macOS, iOS, iPadOS, visionOS | Runs LLMs locally, offline, optimized for Apple Silicon | Free and open source |
| Platform/Service Name | Category | Link (if applicable) | Free Tier Information |
|---|---|---|---|
| ChatGPT (OpenAI) | Text Generation | https://chat.openai.com/ | Free tier available |
| Google Gemini | Text Generation | https://gemini.google.com/ | Free access |
| Microsoft Copilot | Text Generation | https://copilot.microsoft.com/ | Free access |
| Claude (Anthropic) | Text Generation | https://claude.ai/ | Free tier available |
| Hugging Face Spaces | Text Generation | https://huggingface.co/spaces | Many free apps available |
| Jasper | Text Generation | https://jasper.ai/ | Free trial or limited free plan |
| Copy.ai | Text Generation | https://www.copy.ai/ | Free plan with limitations |
| Rytr | Text Generation | https://rytr.me/ | Check for free tier |
| Wordtune | Text Generation | https://www.wordtune.com/ | Check for free tier |
| Compose AI | Text Generation | https://www.compose.ai/ | Free Chrome extension |
| Grammarly | Text Generation | https://www.grammarly.com/ | Free version available |
| Elephas | Text Generation | https://elephas.app/ | Free trial or limited free plan |
| Cotypist | Text Generation | Not specified | Check for free tier |
| BoltAI | Text Generation | https://boltai.com/ | Free version available |
| Scribie | Text Generation | https://scribie.com/ | Free trial |
| Anyword | Text Generation | https://anyword.com/ | Check for free tier |
| Shortwave | Text Generation | https://shortwave.com/ | Free plan with basic AI |
| Mem | Text Generation | https://mem.ai/ | Free plan with limitations |
| Notion AI | Text Generation | https://www.notion.so/product/ai | Free trial or limited free plan |
| Sider | Text Generation | https://sider.ai/ | Free tier available |
| Autopilot | Text Generation | https://autopilotwriting.ai/ | Free download with in-app purchases |
| Nova | Text Generation | https://novaapp.ai/ | Free trial |
| GitHub Copilot | Text Generation (Code) | https://github.com/features/copilot | Free for students and open-source maintainers |
| LangChain | Text Generation | https://www.langchain.com/ | Open-source |
| Mistral | Text Generation | https://mistral.ai/ | Limited free tier |
| Google Cloud AI | Text Generation | https://cloud.google.com/ai | Limited free tier |
| Microsoft Azure AI | Text Generation | https://azure.microsoft.com/en-us/products/ai-services/ | Limited free tier |
| IBM Watson | Text Generation | https://www.ibm.com/watson | Limited free tier |
| AWS AI | Text Generation | https://aws.amazon.com/ai/ | Limited free tier |
| Hugging Face | Text Generation | https://huggingface.co/ | Open-source models |
| OpenAI Codex | Text Generation (Code) | https://openai.com/blog/openai-codex | Part of OpenAI API |
| Cohere | Text Generation | https://cohere.com/ | Limited free tier |
| Scribe | Text Generation | https://scribe.how/ | Free plan available |
| Turing's CodeGen Copilot | Text Generation (Code) | https://www.turing.com/resources/generative-ai-tools | Check website for pricing |
| Microsoft Power Apps | App Development | https://powerapps.microsoft.com/ | Free trial available |
| Auto-GPT | AI Agent | https://github.com/Significant-Gravitas/Auto-GPT | Open-source |
| Google AI Studio | Text Generation | https://ai.google.dev/ | Free for Gemini |
| Eleven Labs | Voice Generation | https://elevenlabs.io/ | Free plan available |
| PlayHT | Voice Generation | https://play.ht/ | Check for free tier |
| Hugging Face Spaces | Image Generation | https://huggingface.co/spaces | Many free apps available |
| Microsoft Copilot | Image Generation | https://copilot.microsoft.com/ | Free image generation |
| DALL-E 3 | Image Generation | https://openai.com/dall-e-3 | Via ChatGPT and Copilot |
| Midjourney | Image Generation | https://www.midjourney.com/ | Paid, but often discussed |
| Stable Diffusion | Image Generation | https://stablediffusion.com/ | Open-source, various platforms offer free access |
| Adobe Firefly | Image Generation | https://firefly.adobe.com/ | Limited free credits |
| Leonardo AI | Image Generation | https://leonardo.ai/ | Free plan available |
| Canva | Image Generation | https://www.canva.com/ | Free plan with AI features |
| Gemini | Image Generation | https://gemini.google.com/ | Free |
| Recraft | Image Generation | https://www.recraft.ai/ | Free plan available |
| Reve Image | Image Generation | https://reveimage.ai/ | Free credits |
| Ideogram | Image Generation | https://ideogram.ai/ | Free plan available |
| FLUX.1 | Image Generation | Not specified | Depends on platform |
| Synthesia.io | Video Generation | https://www.synthesia.io/ | Free trial available |
| Hugging Face Spaces | Various | https://huggingface.co/spaces | Vast array of free AI applications |