ChatGPT
OpenAI's all-round assistant for writing, analysis, images and voice.
A web browser with an AI assistant that can browse and act for you.
Comet is a browser from Perplexity with an assistant built into every tab. It can summarise the page you are on, compare products across sites and carry out multi-step browsing tasks on your behalf.
Heavy web users who want research and errands done inside the browser.
Other tools that do a similar job, ranked by our editors.
Comet is a browser from Perplexity with an assistant built into every tab. It can summarise the page you are on, compare products across sites and carry out multi-step browsing tasks on your behalf.
Perplexity Comet has a free plan, with paid plans that add more usage or features. Check the official site for current limits and prices.
AltFTool is not affiliated with Perplexity Comet. This summary was written by our editors from the tool's public information. Browse all 132 AI tools
Perplexity Comet has a free plan, with paid plans that add more usage or features. Plans change often, so check the official site for current prices.
Anthropic's assistant known for careful writing, long documents and coding.
Google's assistant, connected to Search, Gmail, Docs and Android.
Microsoft's free assistant on the web, Windows and Edge.
A free assistant inside WhatsApp, Instagram, Messenger and the web.
Heavy web users who want research and errands done inside the browser.
Popular alternatives include ChatGPT, Claude, Google Gemini, Microsoft Copilot. See the full ranking on our AI Chatbots & Assistants page.