| AFFiNE | Free | AI Note-Taking & Docs | Open-source workspace that merges docs, whiteboards and databases |
| Apertus Chat (Public AI) | Free | General Purpose Chatbots | Chat directly on Apertus 1.5, the fully open Swiss model from ETH, EPFL and CSCS (released 2026-07-24) |
| Blinko | Free | AI Note-Taking & Docs | Self-hosted personal note tool with AI retrieval over your notes (RAG) |
| Falcon LLM Chat (TII) | Free | General Purpose Chatbots | Free public playground for Abu Dhabi TII's open-weight Falcon models |
| Google AI Mode | Free | General Purpose Chatbots | Conversational AI search inside Google powered by Gemini with follow-up questions |
| Google TextFX | Free | Copywriting & Writing | Ten AI writing tools for wordplay, similes, chains and rhymes |
| HuggingChat | Free | General Purpose Chatbots | Completely free and open-source |
| Jais Chat | Free | General Purpose Chatbots | Bilingual Arabic/English chatbot built on Jais 30B/70B, the leading Arabic-trained LLM family |
| K2 Think | Free | General Purpose Chatbots | MBZUAI/G42 chat app for the open Apache-2.0 K2 Think V2 reasoning model, served on Cerebras |
| Karakeep | Free | AI Note-Taking & Docs | Self-hosted bookmark and notes app that auto-tags saved links with AI |
| Kimi | Free | General Purpose Chatbots | Free access to Moonshot's Kimi K3 and K2-series agentic models |
| Meta AI | Free | General Purpose Chatbots | Free assistant now powered by Meta's Muse Spark models |
| MiroThinker | Free | Deep Research & Documents | Deep research agent with up to 300 tool calls per task and 256K context |
| Pi (Inflection AI) | Free | General Purpose Chatbots | Fully free personal-AI chatbot with no subscription tier at all — unlimited conversations, no paywall |
| Qwen Chat | Free | General Purpose Chatbots | Free access to Alibaba's latest Qwen3.x models, including the Max tier |
| Sakana Chat | Free | General Purpose Chatbots | Free general-public chat service from Sakana AI, built on its own Namazu model |
| STORM (Stanford) | Free | Deep Research & Documents | MIT-licensed open-source system that researches a topic and writes a full cited report |
| Tongyi DeepResearch | Free | Deep Research & Documents | 30.5B-parameter MoE agent (3.3B active) with 128K context for long-horizon research |
| Xiaomi MiMo Studio | Free | General Purpose Chatbots | Xiaomi's web chat for its open-source MiMo MoE models (MIT license) with classic, deep-reasoning and web-search modes |
| Alibaba Quark AI Assistant | Free | General Purpose Chatbots | 200M+ existing users of Quark's browser/search app now get a free Qwen3-powered chat assistant |
| Amazon Nova | Free | General Purpose Chatbots | Amazon's web playground to chat with Nova models (Nova 2 Lite and others) with a model dropdown |
| Baichuan Bai Xiao Ying (百小应) | Free | General Purpose Chatbots | Free consumer assistant from Baichuan, built on the Baichuan 4 base model |
| Baidu Ernie Bot (Wenxin Yiyan) | Free | General Purpose Chatbots | Baidu's flagship consumer chatbot built on its Ernie model family |
| Google AI Edge Eloquent | Free | AI Note-Taking & Docs | On-device Gemma ASR transcribes speech offline and strips filler words |
| GPT Researcher | Free | Deep Research & Documents | Planner and executor agents gather from 20+ web sources |
| ima.copilot (Tencent ima) | Free | Deep Research & Documents | AI workbench that searches, reads and writes from a personal knowledge base |
| Khoj | Free | AI Note-Taking & Docs | Self-hostable second brain that answers from your notes and the web |
| Logseq | Free | AI Note-Taking & Docs | Privacy-first outliner and knowledge graph stored as local Markdown |
| LongCat Chat (Meituan) | Free | General Purpose Chatbots | Web chat for Meituan's open-source LongCat-Flash models (MIT license, 560B MoE) |
| Open Notebook | Free | Deep Research & Documents | Self-hosted NotebookLM alternative over PDFs, video, audio and web pages |
| Sarvam Indus | Free | General Purpose Chatbots | Free (beta) chat assistant natively handling all 22 official Indian languages plus Hinglish code-switching |
| SiYuan | Free | AI Note-Taking & Docs | Privacy-first, self-hostable knowledge workspace with block-level references |
| Snapchat My AI | Free | General Purpose Chatbots | Free chatbot inside Snapchat for everyone since 2023 |
| SurfSense | Free | AI Note-Taking & Docs | Open-source NotebookLM-style research assistant over your own sources |
| AppFlowy | Freemium | AI Note-Taking & Docs | Open-source AI workspace for docs, wikis and project boards |
| AudioPen | Freemium | AI Note-Taking & Docs | Rewrites rambling voice memos into clear structured text |
| Capacities | Freemium | AI Note-Taking & Docs | Object-based (not page-based) note model with typed content |
| ChatGPT | Freemium | General Purpose Chatbots | Free tier on OpenAI's fast GPT-6/GPT-5.x 'Luna' models, with a Think button for harder questions |
| ChatGPT Deep Research | Freemium | Deep Research & Documents | Runs up to ~30 min for exhaustive reports |
| ChatPDF | Freemium | Deep Research & Documents | Chat with any PDF or document |
| Claude | Freemium | General Purpose Chatbots | Free tier on Anthropic's Claude 5 family (Sonnet-class model by default) |
| Coda AI | Freemium | AI Note-Taking & Docs | Docs that combine text, tables and apps |
| Craft | Freemium | AI Note-Taking & Docs | Beautiful native-feel docs with whiteboards, tasks, calendar in one app |
| DeepSeek | Freemium | General Purpose Chatbots | Free web and app chat on DeepSeek's V4-series models |
| Dola | Freemium | General Purpose Chatbots | ByteDance's overseas assistant (renamed from Cici in Nov 2025) with free chat, translation, summarization and image generation |
| Dropbox Dash | Freemium | AI Note-Taking & Docs | AI-powered universal search across 20+ connected apps (Notion, Gmail, Slack, Drive) |
| DuckDuckGo AI Chat (Duck.ai) | Freemium | General Purpose Chatbots | Anonymous, no-account access to Claude, GPT, Mistral and open models with IP stripped before forwarding |
| Euria (Infomaniak) | Freemium | General Purpose Chatbots | Swiss-hosted AI assistant from Infomaniak with a free basic version |
| Gemini | Freemium | General Purpose Chatbots | Free tier on Gemini 3.x Flash models, with limited access to the top Pro model |
| Gemini Deep Research | Freemium | Deep Research & Documents | Multi-step research across the web |
| Grammarly | Freemium | Copywriting & Writing | Grammar, clarity and tone everywhere you type |
| Grok | Freemium | General Purpose Chatbots | Free, rate-limited access to xAI's latest Grok 4.x models |
| Jenni AI | Freemium | Copywriting & Writing | AI Autocomplete tuned for academic/essay writing with in-line citations |
| LanguageTool | Freemium | Copywriting & Writing | Grammar/style checking across 30+ languages, strongest multilingual coverage in category |
| Lex | Freemium | Copywriting & Writing | Minimalist Google-Docs-style editor built AI-first for long-form writing |
| Mem | Freemium | AI Note-Taking & Docs | Self-organizing, AI-first notes |
| Microsoft Copilot | Freemium | General Purpose Chatbots | Free tier mixing frontier OpenAI models with Microsoft's own MAI models |
| MiniMax Chat | Freemium | General Purpose Chatbots | Consumer chat surface for MiniMax's M3 model family |
| Mistral Le Chat | Freemium | General Purpose Chatbots | Free tier from Europe's leading AI lab (Mistral Medium/Large 3-series) |
| NotebookLM | Freemium | Deep Research & Documents | Grounded answers from your own sources |
| Notion AI | Freemium | AI Note-Taking & Docs | AI across docs, wikis, databases and projects |
| Poe | Freemium | General Purpose Chatbots | One app for GPT, Claude, Gemini, Grok, DeepSeek and more |
| Proton Lumo | Freemium | General Purpose Chatbots | Zero-access encrypted chat from the makers of Proton Mail/VPN — no account needed to start chatting |
| ProWritingAid | Freemium | Copywriting & Writing | Sparks AI tool rewrites/expands/continues text (free daily allowance) |
| QuillBot | Freemium | Copywriting & Writing | Best-in-class paraphrasing and rewriting |
| Reka Chat | Freemium | General Purpose Chatbots | Chat with Reka's multimodal models (Reka Flash 3 etc.) without needing an account for basic use |
| Rytr | Freemium | Copywriting & Writing | Low-cost, fast content generation |
| Saner.AI | Freemium | AI Note-Taking & Docs | AI notes, tasks and calendar in one place designed for ADHD-friendly workflows |
| Tana | Freemium | AI Note-Taking & Docs | Supertags turn notes into structured, queryable objects |
| Trinka | Freemium | Copywriting & Writing | Grammar/style checker tuned specifically for scientific and technical writing |
| Type.ai | Freemium | Copywriting & Writing | AI book writing and editing workspace |
| Venice AI | Freemium | General Purpose Chatbots | Browser-side conversation storage — Venice's servers never see or keep chat history |
| Voicenotes | Freemium | AI Note-Taking & Docs | Real-time AI notes and live transcription from voice memos |
| Wordtune | Freemium | Copywriting & Writing | Free tier includes unlimited grammar/spelling checks plus 10 daily rewrites |
| You.com | Freemium | General Purpose Chatbots | AI assistant with cited web answers |
| Z.ai (GLM Chat) | Freemium | General Purpose Chatbots | Free chat on Zhipu's flagship GLM-5.x models |
| Anytype | Freemium | AI Note-Taking & Docs | Local-first, end-to-end encrypted workspace built around typed objects |
| Doubao | Freemium | General Purpose Chatbots | ByteDance's flagship consumer assistant on its Doubao Seed 2.x models |
| iFlytek Spark (Xinghuo) | Freemium | General Purpose Chatbots | Voice-first Chinese chatbot from iFlytek, China's dominant speech-tech vendor |
| Obsidian | Freemium | AI Note-Taking & Docs | Local-first markdown knowledge base |
| Tencent Yuanbao | Freemium | General Purpose Chatbots | Free assistant on Tencent's own Hunyuan Hy-series models alongside DeepSeek |
| Upstage Solar Chat | Freemium | General Purpose Chatbots | Free hosted chat interface for South Korea's Solar Pro model family, no API key needed to try it |
| WPS Office AI | Freemium | AI Note-Taking & Docs | Free office suite from Kingsoft with an AI assistant for writing, summaries and slides |
| Jasper | Trial | Copywriting & Writing | Built for marketing teams at scale |
| Reflect | Trial | AI Note-Taking & Docs | GPT-4 and Whisper built into a backlinked notes app |
| Sudowrite | Trial | Copywriting & Writing | Built for fiction and creative writing |
| Copy.ai | Paid | Copywriting & Writing | Copy plus GTM automation workflows |
| Aleph Alpha Pharia Assistant | Paid | General Purpose Chatbots | Germany's flagship 'sovereign AI' chat/assistant platform (PhariaAssistant), built for EU data-residency requirements |
| AlphaSense | Paid | Deep Research & Documents | AI search across SEC filings, earnings transcripts, broker research, private data |
| Glean | Paid | AI Note-Taking & Docs | Enterprise Work AI platform searching across all connected company systems |
| Heptabase | Paid | AI Note-Taking & Docs | Infinite-canvas whiteboard as the primary note surface |