USE CASE / WRITING
AI for writing
Chat assistants, editors and translators that draft, rewrite and polish text.
DeepL
DeepL
The translation service widely regarded as the most fluent for European and Asian language pairs, with document translation, a write-assist mode and a developer API.
ChatGPT
OpenAI
A large language model chat assistant from OpenAI for text generation, Q&A, translation, coding, and more.
Claude
Anthropic
Anthropic's AI assistant, known for safety and helpfulness, with particular strength in long-form text and analysis.
DeepSeek
DeepSeek
An open-weight AI assistant from DeepSeek, whose R1 reasoning model (2025) matches frontier performance at a fraction of the cost and is fully released on GitHub.
Duolingo
Duolingo
The world's most popular language-learning app, now built on an AI tutor: gamified daily lessons for 40+ languages with the GPT-4-powered Duolingo Max adding roleplay conversation and grammar explanations.
Grammarly
Grammarly
An AI writing assistant offering grammar checking, style suggestions, plagiarism detection, and AI writing.
Qwen
Alibaba Cloud
Alibaba Cloud's open-weight model family and chat assistant; the Qwen3 series (2025) is one of the most widely adopted open-source LLM lines worldwide.
tl;dv
tl;dv
Meeting recorder with AI brains: record, transcribe and summarize Zoom/Meet/Teams calls in 30+ languages, clip highlights into shareable moments, and query every meeting you've ever had.
Semantic Scholar
Allen Institute for AI
A free, AI-powered research index from the Allen Institute: 200M+ papers with semantic search, TLDR summaries, citation graphs and a robust API — the public-good alternative to paywalled academic search.
QuillBot
Learneo
A writing suite built around the web's most popular AI paraphraser, adding grammar checking, summarization, plagiarism detection, translation and citation tools used heavily by students and professionals.
Gemini
Google's multimodal AI model with support for text, image, audio, and video understanding.
Notion AI
Notion
Notion's built-in AI assistant for writing, summarizing, translating, and brainstorming.
Grok
xAI
The AI assistant from xAI with real-time knowledge from X, strong reasoning modes, and image understanding, available on grok.com and inside X.
Kimi
Moonshot AI
An AI assistant from Moonshot AI, known for ultra-long context. Its Kimi K2 model family (2025) is released as open weights on GitHub.
LanguageTool
LanguageTooler
An open-source-rooted grammar and style checker covering 30+ languages — the multilingual alternative to Grammarly, with rules-based precision plus AI rephrasing.
SciSpace
SciSpace (PubGenius)
An AI research assistant that explains papers in plain language as you read, answers questions grounded in the PDF, searches 280M+ papers conversationally and formats citations automatically.
Pitch
Pitch Software
Collaborative presentation software with AI generation: describe a deck and get a designed, on-brand draft — with real-time co-editing, analytics on how slides are viewed and sharp templates.
Research Rabbit
Research Rabbit
Citation-network exploration for researchers: drop in seed papers and get visual maps of related work, authors and branching fields — “Spotify for papers” that turns literature reviews into graph navigation.
Microsoft Copilot
Microsoft
Microsoft's AI assistant built on OpenAI models, integrated across Windows, Bing, Edge and Microsoft 365 apps for chat, image generation and document work.
Doubao
ByteDance
An AI assistant developed by ByteDance for chat, writing, translation, and coding.
Monica
Butterfly Effect
An all-in-one AI assistant extension and app that puts chat, page and video summaries, writing help, translation and image tools one keystroke away on any site.
Merlin
Merlin AI
An AI assistant extension and app that bundles chat with GPT, Claude and Gemini plus summaries, translation and image tools, priced aggressively for students and emerging markets.
Pi
Inflection AI
A personal AI assistant from Inflection AI focused on supportive, emotionally intelligent conversation, available across web and mobile with voice.
Papago
Naver
Naver's translation service, tuned for Asian languages: Korean, Japanese and Chinese quality that rivals or beats Western engines on idiomatic text, plus image, handwriting and conversation translation.
Mistral
Mistral AI
Le Chat, Mistral AI's European assistant, with frontier-speed inference, open-weight model options, web search, coding help and EU data residency.
Khanmigo
Khan Academy
Khan Academy's AI tutor built on Socratic principles: instead of giving answers, it guides students to them — with lesson planning for teachers and parent dashboards, at school-safe guardrails.
Jenni
Jenni AI
An AI writing assistant for academics: autocomplete trained to scholarly register, in-line citations from a 2-billion-source library, paraphrasing and an AI-detection-aware writing flow for essays, theses and journals.
Poe
Quora
Quora's multi-model AI platform bundling ChatGPT, Claude, Gemini and dozens of other chatbots — plus user-created custom bots — into one subscription and interface.
ChatLLM
Abacus.AI
Abacus.AI's all-in-one assistant: frontier LLM chat, image and video generation, deep-research agents and an enterprise ML platform behind one subscription.
Meta AI
Meta
Meta's free AI assistant powered by its Llama models, built into WhatsApp, Instagram, Messenger and the web for chat, image generation and search.
HuggingChat
Hugging Face
A free, open-source chat interface from Hugging Face that runs community models like Llama and Mistral, with switchable assistants.
You.com
You.com
An AI search and chat platform that answers with citations, combining web results with multiple language models.