An extensive list of publicly accessible generative AI, chatbot services, inference platforms, and tools. Prioritizing free services or those with generous free tiers.
Projected as of: May 15, 2025. Note: The AI landscape is highly dynamic; features and availability may change.
Key for Tags:
Web: Accessible via a web browser. macOS: Native or well-supported macOS application. Windows: Native or well-supported Windows application. Linux: Native or well-supported Linux application. API: Offers an Application Programming Interface for developers. Free: Core service is free or has a substantial free offering. Generous Tier: Offers a significant free tier for exploration/light use.| Service Name | Access | Key Features / Free Tier Details | Link |
|---|---|---|---|
| OpenAI - ChatGPT | Web API | Free Access to GPT-3.5 (unlimited), GPT-4o (rate-limited, text, vision, voice, data analysis, file uploads). Excellent reasoning, creativity. Context window up to 128k tokens for GPT-4 Turbo models (paid), GPT-4o offers strong capabilities on free tier. | chat.openai.com |
| Google - Gemini | Web API | Free Access to Gemini 1.0 Pro. Gemini Advanced (paid) offers Gemini 1.5 Pro with 1M token context window. Strong multimodal capabilities, integration with Google Workspace. Free tier is very capable for general use. | gemini.google.com |
| Anthropic - Claude | Web API | Generous Tier Claude 3 Sonnet/Haiku (free tier, rate-limited), Opus (paid). Known for safety, long context (up to 200K tokens), and strong reasoning. Free tier is excellent for text processing and summarization. | claude.ai |
| Microsoft Copilot | Web Windows | Free Powered by OpenAI models (including GPT-4/GPT-4o at times) and Bing search. Image generation (DALL-E 3). Integrated into Windows, Edge, Microsoft 365 (paid for M365 integration). Free web version is powerful. | copilot.microsoft.com |
| Perplexity AI | Web API | Generous Tier Conversational search with citations. Free tier uses their own model and provides good search-augmented answers. Pro version offers choice of models (GPT-4, Claude 3, etc.) and more "Pro" searches. | perplexity.ai |
| Meta AI (Llama 3) | Web | Free Access to Llama 3 models. Integrated into Facebook, Instagram, WhatsApp, and a standalone website. Strong open model, image generation. | meta.ai |
| Mistral AI - Le Chat | Web API | Generous Tier Access to Mistral Small/Large models (free tier likely rate-limited or uses smaller models). Known for efficiency and strong performance, especially open-weight models. | chat.mistral.ai |
| Cohere - Coral / Playground | Web API | Generous Tier Enterprise-focused, but Playground offers free access for experimentation with Command models. Strong on RAG and tool use. Free tier for developers. | cohere.com/playground |
| Hugging Face Chat | Web | Free Access to various open-source models (e.g., Llama, Mistral fine-tunes). Community-driven. Great for trying out new OS models. | huggingface.co/chat |
| Poe by Quora | Web macOS | Generous Tier Access multiple models (ChatGPT, Claude, Llama, Gemini, etc.) in one interface. Free daily message credits for various bots. Subscription for higher limits. | poe.com |
| xAI - Grok | Web (via X Premium) | Requires X Premium subscription. Known for real-time information access from X and a rebellious streak. | x.ai/grok (Info) |
| DeepSeek Chat | Web API | Free Access to DeepSeek models, strong in coding and reasoning. Generous free API credits often available. | chat.deepseek.com |
| Character.AI | Web | Free Create and chat with AI characters. Focus on personality and role-playing. Free tier is very usable. | beta.character.ai |
| You.com (YouChat) | Web | Generous Tier AI-powered search engine with chat modes. Free tier for basic chat and search. Paid plans for advanced AI modes. | you.com |
| Phind | Web | Generous Tier AI search engine for developers. Free tier provides useful answers for coding questions. Pair programming features. | phind.com |
| Service Name | Access | Key Features / Free Tier Details | Link |
|---|---|---|---|
| Perplexity AI | Web API | Generous Tier Conversational search with citations, focus modes (e.g., Academic, Wolfram Alpha). Free tier is excellent for daily search. | perplexity.ai |
| Microsoft Copilot (via Bing) | Web | Free Integrates AI chat with Bing search results, providing summarized answers and conversational follow-ups. Includes image generation. | bing.com/chat (redirects to Copilot) |
| You.com | Web | Generous Tier Search engine with various "AI modes" (Smart, Genius, Research, Create). Free tier for basic search and standard AI. | you.com |
| Phind | Web | Generous Tier AI search engine optimized for developers and technical questions. Provides code examples and explanations. | phind.com |
| Google (AI Overviews / SGE) | Web | Free AI-generated summaries and answers integrated directly into Google Search results for many queries. Gradually rolling out. | google.com |
| Brave Search (Answer with AI) | Web | Free Privacy-focused search engine with an "Answer with AI" feature for summarized results. Free. | search.brave.com |
| Tool Name | Platform | Key Features / Free Tier Details | Link |
|---|---|---|---|
| Ollama | macOS Linux Windows | Free Open-source. Easily run large language models locally (Llama, Mistral, Phi, etc.). CLI and API. Growing community support. Excellent for experimentation. | ollama.com |
| LM Studio | macOS Windows Linux | Free User-friendly GUI to discover, download, and run LLMs locally. Supports various model formats (GGUF). Built-in chat interface and local server. | lmstudio.ai |
| GPT4All | macOS Windows Linux | Free Open-source ecosystem to run powerful & customized LLMs locally. Chat client and model downloads. Privacy-focused. | gpt4all.io |
| Jan | macOS Windows Linux | Free Open-source alternative to LM Studio. Aims to be an open and extensible local AI environment. Supports various models. | jan.ai |
| Pinokio | macOS Windows Linux | Free Browser-like application to install, run, and control AI applications (including LLMs, image generators, etc.) locally with one click. | pinokio.computer |
| App Name | Platform | Key Features / Free Tier Details | Link |
|---|---|---|---|
| Raycast AI | macOS | Generous Tier (Part of Raycast launcher) AI chat, commands, quick actions. Free tier uses GPT-3.5 Turbo. Pro subscription for GPT-4 and more features. | raycast.com/ai |
| TypingMind | macOS Windows Linux Web | One-time purchase for UI. Connects to various APIs (OpenAI, Claude, Gemini, etc. - API costs separate). Advanced chat features, prompt library. | typingmind.com |
| MacGPT / Text Assistant | macOS | Generous Tier (if using free API access from model providers) Native macOS app to access ChatGPT (and other models via API) from menu bar or globally. Requires your own API key for some models. Some offer free basic usage. | macgpt.com (one example) |
| Obsidian (with community plugins) | macOS Windows Linux | Free (Obsidian is free for personal use) Numerous community plugins integrate local or API-based AI for text generation, summarization, etc. within your notes. (e.g., "Obsidian Ollama", "Text Generator") | obsidian.md |
| Cursor | macOS Windows Linux | Generous Tier AI-first code editor. Features like "Chat with your codebase", AI code generation/editing. Free tier with limited GPT-4/advanced model usage, unlimited basic AI. | cursor.sh |
| Platform Name | Access | Key Features / Free Tier Details | Link |
|---|---|---|---|
| Hugging Face Hub | Web API | Free Massive collection of open-source models (LLMs, vision, audio, etc.), datasets, and Spaces (demos). Free to browse, download models, and use many Spaces. Inference API with generous free tier. | huggingface.co |
| GitHub (Marketplace & Search) | Web | Free Search for AI/ML projects and models. GitHub Marketplace has some AI tools. Many open-source models hosted on GitHub. | github.com (search) |
| NVIDIA NGC | Web | Generous Tier Hub for GPU-optimized AI software, pre-trained models, and SDKs. Many resources are free, especially for individual developers and researchers. Some require NVIDIA hardware. | catalog.ngc.nvidia.com |
| TensorFlow Hub | Web | Free Repository of pre-trained TensorFlow models. Easy to browse and integrate into TensorFlow projects. | tfhub.dev |
| PyTorch Hub | Web | Free Collection of pre-trained PyTorch models, easily loadable via `torch.hub`. | pytorch.org/hub |
| Civitai | Web | Free Primarily focused on image generation models (Stable Diffusion, LoRAs, etc.), but a major hub for community-shared AI models and resources. | civitai.com |
| Platform Name | Access | Key Features / Free Tier Details | Link |
|---|---|---|---|
| OpenAI API | API | Generous Tier (Often trial credits) Access to GPT models, DALL-E, Whisper, Embeddings. Pay-as-you-go, but new accounts often get free starting credits. GPT-4o API is relatively cheaper. | platform.openai.com |
| Google AI / Vertex AI (Gemini API) | API | Generous Tier Access Gemini models (Pro, Vision Pro) via Google AI Studio or Vertex AI. Generous free quotas for Gemini Pro. | ai.google.dev |
| Anthropic API | API | Generous Tier (Often trial credits) Access to Claude models. New accounts may receive free credits for evaluation. | anthropic.com/product |
| Cohere API | API | Generous Tier Trial API key with free credits for Command, Embed, Rerank models. Excellent for RAG and enterprise use cases. | cohere.com/pricing |
| Mistral AI API | API | Generous Tier Access to Mistral models (e.g., Mistral Small, Large, Embeddings). Often has a free tier or trial credits. | mistral.ai/product |
| Hugging Face Inference API / Endpoints | API | Generous Tier Free Inference API for thousands of models (rate-limited). Serverless Inference Endpoints for dedicated workloads (paid, but can scale to zero). | huggingface.co/inference-api |
| Replicate | API | Generous Tier Run open-source models with an API. Often provides free initial credits. Pay-per-second billing. Vast model library. | replicate.com |
| Fireworks.ai | API | Generous Tier Fast LLM inference platform. Offers free credits for new users to try various open-source models. | fireworks.ai |
| Together.ai | API | Generous Tier Cloud platform for running open-source AI models. Offers free credits upon signup for experimentation. | together.ai |
| Groq API | API | Generous Tier (Often trial access/free quotas) Extremely fast inference on LPUs for selected open-source models. Great for low-latency applications. | groq.com |
| Service Name | Type | Access | Key Features / Free Tier Details | Link |
|---|---|---|---|---|
| Leonardo.Ai | Image | Web API | Generous Tier Daily free tokens for image generation, fine-tuned models, image editing tools. | leonardo.ai |
| Playground AI | Image | Web | Generous Tier Free daily image generations with Stable Diffusion and their own models. Social features. | playground.com |
| Adobe Firefly | Image, Vector, Effects | Web | Generous Tier Free monthly generative credits for text-to-image, generative fill, text effects. Designed for commercial safety. | firefly.adobe.com |
| Microsoft Designer (Image Creator) | Image | Web | Free Powered by DALL-E. Free image generations with "boosts" for faster generation. Integrated into Copilot. | designer.microsoft.com/image-creator |
| Stable Diffusion Online (various) | Image | Web | Free Many websites offer free UIs to run Stable Diffusion (e.g., Stable Diffusion Online, Mage.space free tier). Quality and features vary. | stablediffusiononline.com (example) |
| ElevenLabs | Audio (TTS, Voice Cloning) | Web API | Generous Tier Free tier with character quota for speech synthesis and some voice cloning capabilities. High-quality voices. | elevenlabs.io |
| Runway (Gen-2, Gen-3) | Video, Image, Audio | Web | Generous Tier Free starting credits for text-to-video, image-to-video, and many other AI magic tools. | runwayml.com |
| Suno AI | Music | Web | Generous Tier Daily free credits to generate songs (lyrics + music) from text prompts. | suno.com |
| Udio | Music | Web | Generous Tier (Beta, free credits) High-quality music generation from text prompts. Allows for extending songs. | udio.com |
This dashboard is a living document. The AI landscape evolves rapidly. Always check the services' official websites for the latest features and pricing.