Perplexity is the leading AI search tool with real-time web access and cited sources, but it faces growing competition. ChatGPT now includes web browsing, You.com offers a customisable search experience, and Claude handles deep reasoning on documents you provide rather than live web sources.
Switch when you need conversational reasoning over documents you upload rather than live web search (Claude), want a fully customisable search and chat interface with multiple modes (You.com), or need the broadest general-purpose AI capability with web access included at no extra cost (ChatGPT Plus).
Upload your own PDFs, reports, and documents for deep analysis — not live web, but unmatched for reasoning over material you provide.
Switch between coding, research, writing, and general modes — useful when you need different AI behaviours for different search tasks.
Web browsing, code execution, DALL·E image generation, and GPT store plugins — the most feature-complete platform at $20/mo Plus.
Free Bing-powered web search with AI chat, embedded in Edge and Windows — the obvious choice for users already in the Microsoft ecosystem.
The tool that made AI assistants mainstream — and still the most broadly capable for everyday use. Best-in-class for general knowledge, coding, content drafting, data analysis, and image generation via DALL·E 3. Four years of model improvement and a vast plugin and GPT ecosystem give it a feature lead that's hard to catch up to.
Anthropic's AI assistant — the one most often cited by professionals who care about depth. Exceptional at long-document analysis, nuanced conversation, research synthesis, and tasks requiring genuine reasoning rather than pattern-matched confidence. Widely used by writers, analysts, lawyers, and engineers who need an assistant that's careful, not just fast.
A Chinese-developed frontier model matching GPT-4o quality on most benchmarks — and the R1 reasoning model is a genuine rival to OpenAI's o1 for mathematical and logical problem-solving. Free to use at deepseek.com, with an API priced at roughly one-tenth of OpenAI's rates and full OpenAI compatibility for painless migration.
Google's AI assistant with native integration across the apps most people already use every day — Docs, Gmail, Drive, Calendar, and Meet. Strong at research, coding, and multimodal reasoning, and the natural choice for anyone whose work lives inside Google Workspace. Powers the AI layer across Google's entire product ecosystem.
Powered by Meta's Llama models and embedded where billions of people already spend time — WhatsApp, Messenger, Instagram, and Facebook. Free with no account required at meta.ai. The lowest-friction AI assistant for everyday tasks and the most widely accessible option globally, whether or not you think about AI tools intentionally.
Free AI chat with live web search in the browser, and paid tiers that embed AI across the entire Microsoft 365 suite — Outlook, Word, Excel, Teams, and PowerPoint. The natural choice for organisations already on Microsoft licensing who want AI capabilities without adding a new vendor relationship to manage.
Command A+ is Cohere's latest open enterprise large language model, built for complex reasoning and multi-step agentic tasks. Designed for deployment on private or cloud infrastructure with full data control. Used by Oracle, Salesforce, and McKinsey. PH launch 23 May 2026 with 105 votes.
xAI's assistant with real-time access to posts and trends from X — uniquely useful for understanding what people are actually saying about a topic right now, rather than what was true at training cutoff. More direct and opinionated than most AI assistants, by design. Accessible to X Premium subscribers.
European AI lab producing frontier open-weight models deployable on your own infrastructure with no usage fees and no data leaving your environment. Fast, efficient, and competitive with much larger proprietary models on most benchmarks. The default choice for teams that want serious AI capability without vendor lock-in or compliance headaches.
Rixx is an AI research assistant that structures results into organized threads rather than flat answers. Group related searches, build context across sessions, and export clean research summaries. PH launch 25 May 2026 with 90 votes.
Combines live web search with AI chat so answers are grounded in current sources rather than training data from a year ago. Customisable search modes for coding, writing, and research with a clean interface and a generous free tier. Useful when you need something between a Google search and a full Perplexity session.
A local-first AI assistant that stores everything as plain markdown in a folder you own (~/Keel by default) — no server, no tracking, no cloud database holding your context hostage. Swap between Claude, GPT, OpenRouter, or local Ollama models in settings without losing your history. The most credible answer yet for people who want assistant-grade memory without handing their notes to a vendor.
Multi-user chat workspace built around shared AI threads — teammates and AI agents collaborate in the same conversation rather than each running separate sessions. PH launch 19 May 2026 with 258 votes. Freemium with a 7-day Pro trial.
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